Automatically add common filters from one side of binary operation to the other side before sending the query to storage subsystem. See https://grafana.com/blog/2021/08/04/how-to-use-promql-joins-for-more-effective-queries-of-prometheus-metrics-at-scale/ and https://www.robustperception.io/exposing-the-software-version-to-prometheus
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CHANGELOG
tip
-
FEATURE: MetricsQL: cover more cases with the label filters' propagation optimization. This should improve the average performance for practical queries. The following cases are additionally covered:
- Multi-level transform functions. For example,
abs(round(foo{a="b"})) + bar{x="y"}
is now optimized toabs(round(foo{a="b",x="y"})) + bar{a="b",x="y"}
- Binary operations with
on()
,without()
,group_left()
andgroup_right()
modifiers. For example,foo{a="b"} on (a) + bar
is now optimized tofoo{a="b"} on (a) + bar{a="b"}
- Multi-level binary operations. For example,
foo{a="b"} + bar{x="y"} + baz{z="q"}
is now optimized tofoo{a="b",x="y",z="q"} + bar{a="b",x="y",z="q"} + baz{a="b",x="y",z="q"}
- Aggregate functions. For example,
sum(foo{a="b"}) by (c) + bar{c="d"}
is now optimized tosum(foo{a="b",c="d"}) by (c) + bar{c="d"}
- Multi-level transform functions. For example,
-
FEATURE MetricsQL: optimize joining with
*_info
labels. For example:kube_pod_created{namespace="prod"} * on (uid) group_left(node) kube_pod_info
now automatically adds the needed filters onuid
label tokube_pod_info
before selecting series for the right side of*
operation. This may save CPU, RAM and disk IO resources. See this article for details on*_info
labels. -
BUGFIX: return proper results from
highestMax()
function at Graphite render API. Previously it was incorrectly returning timeseries with min peaks instead of max peaks. -
BUGFIX: properly limit indexdb cache sizes. Previously they could exceed values set via
-memory.allowedPercent
and/or-memory.allowedBytes
whenindexdb
contained many data parts. See this issue. -
BUGFIX: vmui: fix a bug, which could break time range picker when editing
From
orTo
input fields. See this issue. -
BUGFIX: vmui: fix a bug, which could break switching between
graph
,json
andtable
views. See this issue. -
BUGFIX: vmui: fix possible UI freeze after querying
node_uname_info
time series. See this issue. -
BUGFIX: show the original location of the warning or error message when logging throttled messages. Previously the location inside
lib/logger/throttler.go
was shown. This could increase the complexity of debugging.
v1.72.0
Released at 18-01-2022
- FEATURE: MetricsQL: add support for
@
modifier, which is enabled by default in Prometheus starting from Prometheus v2.33.0. See these docs and this feature request. VictoriaMetrics extends@
modifier with the following additional features:- It can contain arbitrary expression. For example,
foo @ (end() - 1h)
would returnfoo
value atend - 1 hour
timestamp on the selected time range[start ... end]
. Another example:foo @ (now() - 10m)
would returnfoo
value 10 minutes ago from the current time. - It can be put everywhere in the query. For example,
sum(foo) @ start()
would calculatesum(foo)
atstart
timestamp on the selected time range[start ... end]
.
- It can contain arbitrary expression. For example,
- FEATURE: MetricsQL: add support for optional
keep_metric_names
modifier, which can be applied to all the rollup functions and transform functions. This modifier prevents from deleting metric names from function results. For example,rate({__name__=~"foo|bar"}[5m]) keep_metric_names
leavesfoo
andbar
metric names inrate()
results. This feature provides an additional workaround for this issue. - FEATURE: vmagent: add support for Kubernetes service discovery in the current namespace in the same way as Prometheus does. For example, the following config limits pod discovery to the namespace where vmagent runs:
scrape_configs:
- job_name: 'kubernetes-pods'
kubernetes_sd_configs:
- role: pod
namespaces:
own_namespace: true
-
FEATURE: vmagent: add
__meta_kubernetes_node_provider_id
label for discovered Kubernetes nodes in the same way as Prometheus does. -
FEATURE: vmagent: log error message when remote storage returns 400 or 409 http errors. This should simplify detection and debugging of this case. See this issue.
-
FEATURE: vmagent: expose
promscrape_stale_samples_created_total
metric for monitoring the total number of created stale samples when scraping Prometheus targets. See these docs for the information on when stale samples (aka staleness markers) can be created. -
FEATURE: vmrestore: store
restore-in-progress
file in-dst
directory whilevmrestore
is running. This file is automatically deleted whenvmrestore
is successfully finished. This helps detecting incompletely restored data on VictoriaMetrics start. See this issue. -
FEATURE: vmctl: print the last sample timestamp when the data migration is interrupted either by user or by error. This helps continuing the data migration from the interruption moment. See this issue.
-
FEATURE: vmalert: expose
vmalert_remotewrite_total
metric at/metrics
page. This makes possible calculating SLOs for error rate during writing recording rules and alert state to-remoteWrite.url
with the queryvmalert_remotewrite_errors_total / vmalert_remotewrite_total
. See this issue. Thanks to @afoninsky . -
FEATURE: vmalert: add
stripPort
template function in the same way as Prometheus does. -
FEATURE: vmalert: add
parseDuration
template function in the same way as Prometheus does. -
FEATURE: MetricsQL: add
stale_samples_over_time(m[d])
function for calculating the number of staleness marks for time seriesm
over the durationd
. This function may be useful for detecting flapping metrics at scrape targets, which periodically disappear and then appear again. -
FEATURE: vmgateway: add support for
extra_filters
option. See this issue. -
FEATURE: vmui: improve UX according to this feature request. Thanks to @Loori-R .
-
FEATURE: vmui: limit the number of requests sent to VictoriaMetrics during zooming / scrolling. See this issue.
-
BUGFIX: vmagent: make sure that
vmagent
replicas scrape the same targets at different time offsets when replication is enabled in vmagent clustering mode. This guarantees that the deduplication consistently leaves samples from the samevmagent
replica. -
BUGFIX: return the proper response stub from
/api/v1/query_exemplars
handler, which is needed for Grafana v8+. See this issue. -
BUGFIX: vmctl: fix a few edge cases and improve migration speed for OpenTSDB importer. See this pull request.
-
BUGFIX: fix possible data race when searching for time series matching
{key=~"value|"}
filter over time range covering multipe days. See this pull request. Thanks to @waldoweng for the provided fix. -
BUGFIX: vmagent: do not send staleness markers on graceful shutdown. This follows Prometheus behavior. See this comment.
-
BUGFIX: vmagent: properly set
__address__
label indockerswarm_sd_config
. See this issue. Thanks to @ashtuchkin for the fix. -
BUGFIX: vmui: fix incorrect calculations for graph limits on y axis. This could result in incorrect graph rendering in some cases. See this issue.
-
BUGFIX: vmui: fix handling for multi-line queries. See this issue.
v1.71.0
Released at 20-12-2021
-
FEATURE: VictoriaMetrics enterprise: add multi-level downsampling support. See these docs and this feature request.
-
FEATURE: vmui: add ability to analyze the correlation between two queries on a single graph. Just click
+Query
button, enter the second query in the newly appeared input field and pressCtrl+Enter
. Results for both queries should be displayed simultaneously on the same graph. Every query has its own vertical scale, which is displayed on the left and the right side of the graph. Lines for the second query are dashed. See this pull request. -
FEATURE: vmui: add ability to override the interval between returned datapoints. By default it is automatically calculated depending on the selected time range and horizontal resolution of the graph. Now it is possible to override it with custom values. This may be useful during data exploration and debugging.
-
FEATURE: accept optional
extra_filters[]=series_selector
query args at Prometheus query APIs additionally toextra_label
query args. This allows enforcing additional filters for all the Prometheus query APIs by using vmgateway or vmauth. See this feature request. -
FEATURE: vmauth: allow specifying
http
andhttps
urls in-auth.config
command-line flag. See this pull request. Thanks for @TFM93 . -
FEATURE: vmagent: allow specifying
http
andhttps
urls in the following command-line flags:-promscrape.config
,-remoteWrite.relabelConfig
and-remoteWrite.urlRelabelConfig
. -
FEATURE: vminsert: allow specifying
http
andhttps
urls in-relabelConfig
command-line flag. -
FEATURE: vminsert: add
-maxLabelValueLen
command-line flag for the ability to configure the maximum length of label value. See this feature request. -
FEATURE: preserve the order of time series passed to limit_offset function. This allows implementing series paging via
limit_offset(limit, offset, sort_by_label(...))
. See this and this issues. -
FEATURE: automaticall convert
(value1|...|valueN)
into{value1,...,valueN}
inside__graphite__
pseudo-label. This allows using Grafana multi-value template variables inside__graphite__
pseudo-label. For example,{__graphite__=~"foo.($bar)"}
is expanded to{__graphite__=~"foo.{x,y}"}
if bothx
andy
are selected for$bar
template variable. See these docs for details. -
FEATURE: add timestamp_with_name function. It works the same as timestamp, but leaves the original time series names, so it can be used in queries, which match multiple time series names:
timestamp_with_name({foo="bar"}[1h])
. See this comment for more context. -
FEATURE: add changes_prometheus, increase_prometheus and delta_prometheus functions, which don't take into account the previous sample before the given lookbehind window specified in square brackets. These functions may be used when the Prometheus behaviour for
changes()
,increase()
anddelta()
functions is needed to be preserved. VictoriaMetrics uses slightly different behaviour forchanges()
,increase()
anddelta()
functions by default - see this article for details. See this issue. -
BUGFIX: fix
unaligned 64-bit atomic operation
panic on 32-bit architectures, which has been introduced in v1.70.0. See this issue. -
BUGFIX: vmalert: restore the ability to use
$labels.alertname
in labels templating. See this issue. -
BUGFIX: vmui: add missing
query
caption to the input field for the query. See this issue. -
BUGFIX: vmui: fix navigation over query history with
Ctrl+up/down
and fix zoom relatively to the cursor position. See this pull request. -
BUGFIX: deduplicate samples more thoroughly if deduplication is enabled. Previously some duplicate samples may be left on disk for time series with high churn rate. This may result in bigger storage space requirements.
-
BUGFIX: vmagent: follow up to 5 redirects when
follow_redirects: true
is set for a particular scrape config. Previously only a single redirect was performed in this case. It is expected these redirects are performed to the original hostname. See this issue. -
BUGFIX: de-duplicate data exported via /api/v1/export/csv by default if deduplication is enabled. The de-duplication can be disabled by passing
reduce_mem_usage=1
query arg to/api/v1/export/csv
. See this issue. -
BUGFIX: vmalert: properly store historical data to old Prometheus versions. See this issue.
v1.70.0
Released at 02-12-2021
-
FEATURE: vmalert: add ability to pass arbitrary query args to
-datasource.url
on a per-group basis viaparams
option. See this pull request. -
FEATURE: add
now()
function to MetricsQL. This function returns the current timestamp in seconds. See these docs. -
FEATURE: vmauth: allow using optional
name
field in configs. This field is then used asusername
label value forvmauth_user_requests_total
metric. See this feature request. -
FEATURE: vmagent: export
vm_persistentqueue_read_duration_seconds_total
andvm_persistentqueue_write_duration_seconds_total
metrics, which can be used for detecting persistent queue saturation withrate(vm_persistentqueue_write_duration_seconds_total) > 0.9
alerting rule. -
FEATURE: export
vm_filestream_read_duration_seconds_total
andvm_filestream_write_duration_seconds_total
metrics, which can be used for detecting persistent disk saturation withrate(vm_filestream_read_duration_seconds_total) > 0.9
alerting rule. -
FEATURE: export
vm_cache_size_max_bytes
metrics, which show capacity for various caches. These metrics can be used for determining caches with reach its capacity withvm_cache_size_bytes / vm_cache_size_max_bytes > 0.9
query. -
FEATURE: vmbackup, vmrestore: add
-s3ForcePathStyle
command-line flag, which can be used for making backups to Aliyun OSS. See this pull request. -
FEATURE: vmctl: improve data migration from OpenTSDB. See this pull request. Thanks to @johnseekins .
-
FEATURE: suppress
connection reset by peer
errors when remote client resets TCP connection to VictoriaMetrics / vmagent while ingesting the data via InfluxDB line protocol, Graphite protocol or OpenTSDB protocol. This error is expected, so there is no need in logging it. -
FEATURE: vmui: store the display type in URL, so it isn't lost when copy-pasting the URL. See this feature request.
-
FEATURE: vmalert: make
-notifier.url
command-line flag optional. This flag can be omitted ifvmalert
is used solely for recording rules and doesn't evaluate alerting rules. See this pull request. -
FEATURE: vmbackup, vmrestore: export internal metrics at
http://vmbackup:8420/metrics
andhttp://vmrestore:8421/metrics
for better visibility of the backup/restore process. -
FEATURE: allow trailing whitespace after the timestamp when parsing Graphite plaintext lines. See this issue.
-
FEATURE: expose
/-/healthy
and/-/ready
endpoints as Prometheus does. This is needed for improving integration with third-party solutions, which rely on these endpoints. See this issue. -
BUGFIX: vmagent: prevent from scraping duplicate targets if
-promscrape.dropOriginalLabels
command-line flag is set. See this issue. Thanks to @guidao for the fix. -
BUGFIX: vmstorage enterprise: added missing
vm_tenant_used_tenant_bytes
metric, which shows the approximate per-tenant disk usage. See these docs and this issue. -
BUGFIX: vmauth: properly take into account the value passed to
-maxIdleConnsPerBackend
command-line flag. See this issue. -
BUGFIX: vmagent: fix reading data from Kafka.
-
BUGFIX: vmalert: fix replay mode in enterprise version.
-
BUGFIX: consistently return zero from deriv() function applied to a constant time series. Previously it could return small non-zero values in this case.
-
BUGFIX: vmrestore: properly resume downloading for partially downloaded big files. Previously such files were re-downloaded from the beginning after the interrupt. Now only the remaining parts of the file are downloaded. This allows saving network bandwidth. See this issue.
-
BUGFIX: vmui: do not store the last query across vmui page reloads. See this issue.
-
BUGFIX: vmui: fix
Cannot read properties of undefined
error at table view. See this issue.
v1.69.0
Released at 08-11-2021
-
FEATURE: vmalert: allow groups with empty rules list like Prometheus does. See this pull request.
-
FEATURE: vmalert: allow groups with default
tenant
in-clusterMode
. Defaulttenant
values can be specified via-defaultTenant.prometheus
and-defaultTenant.graphite
. See these docs. -
FEATURE: vmagent: add
collapse
andexpand
buttons per each group of targets with the samejob_name
athttp://vmagent:8429/targets
page. -
FEATURE: automatically detect timestamp precision (ns, us, ms or s) for the data ingested into VictoriaMetrics via InfluxDB line protocol.
-
FEATURE: vmagent: add ability to protect
/config
page with auth key via-configAuthKey
command-line flag. This page may contain sensitive config information, so it may be good to restrict access to this page. See this issue. -
FEATURE: vmagent: hide passwords and auth tokens at
/config
page like Prometheus does. See this issue. -
FEATURE: vmagent: add
-promscrape.maxResponseHeadersSize
command-line flag for tuning the maximum HTTP response headers size for Prometheus scrape targets. -
FEATURE: vmagent: send data to multiple configured remote storage systems in parallel (e.g. when multiple
-remoteWrite.url
flag values are specified). This should improve data ingestion speed. -
FEATURE: vmagent: add
-remoteWrite.maxRowsPerBlock
command-line flag for tuning the number of samples to send to remote storage per each block. Bigger values may improve data ingestion performance at the cost of higher memory usage. -
FEATURE: vmagent: distribute Kafka messages among all the partitions when writing data to Kafka.
-
FEATURE: add label_graphite_group function for extracting the given groups from Graphite metric names.
-
FEATURE: add duration_over_time function for calculating the actual lifetime of the time series with possible gaps. See this feature request.
-
FEATURE: add limit_offset function, which can be used for implementing simple paging over big number of time series. See this feature request.
-
BUGFIX: vmagent: reduce the increased memory usage when scraping targets with big number of metrics which periodically change. The memory usage has been increased in v1.68.0 after vmagent started generating staleness markers in stream parse mode. See this issue.
-
BUGFIX: vmagent: properly display
proxy_url
config option athttp://vmagent:8429/config
page. See this issue. -
BUGFIX: fix tests for Apple M1. See this issue.
v1.68.0
Released at 22-10-2021
-
FEATURE: vmagent: expose
-promscrape.config
contents at/config
page as Prometheus does. See this feature request. -
FEATURE: vmagent: add
show original labels
button per each scrape target displayed athttp://vmagent:8429/targets
page. This should improve debuggability for service discovery and relabeling issues similar to this one. See this feature request. -
FEATURE: vmagent: shard targets among cluster nodes after the relabeling is applied. This should guarantee that targets with the same set of labels go to the same
vmagent
node in the cluster. See this issue. -
FEATURE: vmagent: atomatically switch to stream parsing mode if the response from the given target exceeds the command-line flag value
-promscrape.minResponseSizeForStreamParse
. This should reduce memory usage whenvmagent
scrapes targets with non-uniform response sizes (this is the case in Kubernetes monitoring). -
FEATURE: vmagent: send Prometheus-like staleness marks in stream parsing mode. Previously staleness marks wern't sent in stream parsing mode. See these docs for details.
-
FEATURE: vmagent: properly calculate
scrape_series_added
metric for targets in stream parsing mode. Previously it was set to 0 in stream parsing mode. See more details about this metric. -
FEATURE: vmagent: expose
promscrape_series_limit_max_series
andpromscrape_series_limit_current_series
metrics athttp://vmagent:8429/metrics
for scrape targets with the enabled series limiter. -
FEATURE: vmagent: return error if
sample_limit
orseries_limit
options are set when stream parsing mode is enabled, since these limits cannot be applied in stream parsing mode. -
FEATURE: vmalert: add
-remoteRead.disablePathAppend
command-line flag, which allows specifying the full-remoteRead.url
. If-remoteRead.disablePathAppend
is set, thenvmalert
doesn't add/api/v1/query
suffix to-remoteRead.url
. -
FEATURE: add trigonometric functions, which are going to be added in Prometheus 2.31: acosh, asinh, atan, atanh, cosh, deg, rad, sinh, tan, tanh. Also add
atan2
binary operator. See this pull request. -
FEATURE: consistently return the same set of time series from limitk function. This improves the usability of periodically refreshed graphs.
-
FEATURE: vmui: varios UX improvements. See this pull request and these docs.
-
FEATURE: vmauth: add ability to specify HTTP headers, which will be sent in requests to backends. See this feature request.
-
FEATURE: add
/flags
page to all the VictoriaMetrics components. This page contains command-line flags passed to the component. -
FEATURE: allow using tab separators additionally to whitespace separators when ingesting data in Graphite plaintext protocol. Such separators are supported by Carbon-c-relay.
-
BUGFIX: vmstorage: fix
unaligned 64-bit atomic operation
panic on 32-bit architectures (arm and 386). The panic has been introduced in v1.67.0. -
BUGFIX: vmalert, vmauth: prevent from frequent closing of TCP connections established to backends under high load. This should reduce the number of TCP sockets in
TIME_WAIT
state atvmalert
andvmauth
under high load. See this pull request. -
BUGFIX: vmalert: correctly calculate alert ID including extra labels. Previously, ID for alert entity was generated without alertname or groupname. This led to collision, when multiple alerting rules within the same group producing same labelsets. E.g. expr:
sum(metric1) by (job) > 0
and expr:sum(metric2) by (job) > 0
could result into same labelsetjob: "job"
. The bugfix adds all extra labels right after receiving response from the datasource. See this pull request. -
BUGFIX: vmalert: fix links in Web UI. See this pull request.
-
BUGFIX: vmagent: set
honor_timestamps: true
by default in scrape configs if this options isn't set explicitly. This aligns the behaviour with Prometheus. -
BUGFIX: vmagent: group scrape targets by the original job names at
http://vmagent:8429/targets
page like Prometheus does. Previously they were grouped by the job name after relabeling, which may result in unexpected empty target groups. See this issue. -
BUGFIX: vmctl: fix importing boolean fields from InfluxDB line protocol. See this issue.
v1.67.0
Released at 08-10-2021
-
FEATURE: add ability to accept metrics from DataDog agent and DogStatsD. See these docs. This option simplifies the migration path from DataDog to VictoriaMetrics. See also this issue.
-
FEATURE: vmagent enterprise: add support for data reading and writing from/to Apache Kafka. See these docs.
-
FEATURE: vmui: switch to μPlot and add ability to naturally scroll and zoom graphs. See these docs. Thanks to @Loori-R.
-
FEATURE: vmstorage: stop accepting new data if
-storageDataPath
directory contains less than-storage.minFreeDiskSpaceBytes
of free space. This should prevent fromout of disk space
crashes. See this feature request. -
FEATURE: calculate quantiles in the same way as Prometheus does in such functions as quantile_over_time and quantile. Previously results from VictoriaMetrics could be slightly different than results from Prometheus. See this and this issues.
-
FEATURE: add
rollup_scrape_interval(m[d])
function to MetricsQL, which returnsmin
,max
andavg
values for the interval between samples form
on the given lookbehind windowd
. -
FEATURE: add
topk_last(k, q)
andbottomk_last(k, q)
functions to MetricsQL, which return up tok
time series fromq
with the maximum / minimum last value on the graph. -
BUGFIX: align behavior of the queries
a or on (labels) b
,a and on (labels) b
anda unless on (labels) b
whereb
has multiple time series with the givenlabels
to Prometheus behavior. See this pull request. -
BUGFIX: vmagent: fix
openstack_sd_config
service discovery when bothdomain_name
andproject_id
config options are set. See this issue. -
BUGFIX: return proper values (zeroes) from stddev_over_time and stdvar_over_time functions when the lookbehind window in square brackets contains only a single sample. Previously the sample value was incorrectly returned in this case.
-
BUGFIX: vminsert: fix uneven distribution of time series among storage nodes in multi-level cluster setup. See this issue.
v1.66.2
Released at 23-09-2021
-
FEATURE: vmagent: add
vm_promscrape_max_scrape_size_exceeded_errors_total
metric for counting of the failed scrapes due to the exceeded response size (the response size limit can be configured via-promscrape.maxScrapeSize
command-line flag). See this issue. -
BUGFIX: vmalert: properly reload rule groups if only the
interval
config option is changed. See this issue. -
BUGFIX: properly handle
{__name__=~"prefix(suffix1|suffix2)",other_label="..."}
queries. They may return unexpected empty responses since v1.66.0. See this issue.
v1.66.1
Released at 22-09-2021
-
FEATURE: add
-cluster
and/or-enterprise
suffixes toshort_version
label atvm_app_version
metric exposed at/metrics
page of every VictoriaMetrics component. See this issue. -
BUGFIX: vmselect: fix accessing Graphite APIs. The access has been broken in v1.66.0, because
/graphite/*
path prefix accidentally clashed with/graph*
path prefix used for VictoriaMetrics UI (akavmui
). -
BUGFIX: fix parsing
regex: <bool_or_number>
in relabeling rules (for example,regex: true
orregex: 123
). The bug has been introduced in v1.66.0.
v1.66.0
Released at 20-09-2021
-
FEATURE: vmalert: add web UI with the list of alerting groups, alerts and alert statuses. See this pull request.
-
FEATURE: vmalert: add
-rule.maxResolveDuration
command-line flag, which could be used for limiting the auto-resolve duration for the alerting rule. By default it is limited to 3x evaluation interval. This could be too high for big evaluation intervals. See this issue. -
FEATURE: vmalert: add support for Bearer token authorization for
-datasource.url
,-remoteRead.url
and-remoteWrite.url
. See this issue. -
FEATURE: vmagent: send stale markers for disappeared metrics like Prometheus does. Previously stale markers were sent only when the scrape target disappears or when it becomes temporarily unavailable. See these docs for details.
-
FEATURE: vmagent: add ability to set
series_limit
option for a particular scrape target via__series_limit__
label. This allows setting the limit on the number of time series on a per-target basis. See these docs for details. -
FEATURE: vmagent: add ability to set
stream_parse
option for a particular scrape target via__stream_parse__
label. This allows managing the stream parsing mode on a per-target basis. See these docs for details. -
FEATURE: vmagent: add ability to set
scrape_interval
andscrape_timeout
options for a particular target via__scrape_interval__
and__scrape_timeout__
labels in the same way as Prometheus 2.30 does. See this pull request. -
FEATURE: vmagent: generate
scrape_timeout_seconds
metric per each scrape target, so the target saturation could be calculated withscrape_duration_seconds / scrape_timeout_seconds
. See the corresponding pull request from Prometheus 2.30. -
FEATURE: vmagent: reduce CPU usage when calculating the number of newly added series per scrape (this number is sent to remote storage in
scrape_series_added
metric). -
FEATURE: vmagent: reduce CPU usage when applying
series_limit
to scrape targets with constant set of metrics. See more information aboutseries_limit
here. -
FEATURE: vminsert: disable rerouting by default when a few of
vmstorage
nodes start accepting data at lower speed than the rest ofvmstorage
nodes. This should improve VictoriaMetrics cluster stability during rolling restarts and during spikes in time series churn rate. The rerouting can be enabled by passing-disableRerouting=false
command-line flag tovminsert
. -
FEATURE: vmauth: do not put invalid auth tokens into log by default due to security reasons. The logging can be returned back by passing
-logInvalidAuthTokens
command-line flag tovmauth
. Requests with invalid auth tokens are counted atvmagent_http_request_errors_total{reason="invalid_auth_token"}
metric exposed byvmauth
at/metrics
page. -
FEATURE: add new relabeling actions:
keep_metrics
anddrop_metrics
. This simplifies metrics filtering by metric names. See these docs for more details. -
FEATURE: allow splitting long
regex
in relabeling filters into an array of shorter regexps, which can be put into multiple lines for better readability and maintainability. See these docs for more details. -
FEATURE: optimize performance for queries with regexp filters on metric name like
{__name__=~"metric1|...|metricN"}
. See this pull request from @faceair. -
FEATURE: vmui: use Prometheus-compatible query args, so
vmui
could be accessed from graph editor in Grafana. See this pull request. Thanks to @Loori-R. -
FEATURE: vmselect: automatically add missing port to
-storageNode
hostnames. For example,-storageNode=vmstorage1,vmstorage2
is automatically translated to-storageNode=vmstorage1:8401,vmstorage2:8401
. This simplifies manual setup of VictoriaMetrics cluster. -
FEATURE: vminsert: automatically add missing port to
-storageNode
hostnames. For example,-storageNode=vmstorage1,vmstorage2
is automatically translated to-storageNode=vmstorage1:8400,vmstorage2:8400
. This simplifies manual setup of VictoriaMetrics cluster. -
FEATURE: add mad(q) function to MetricsQL. It calculates Median absolute deviation for groups of points with identical timestamps across multiple time series.
-
FEATURE: add outliers_mad(tolerance, q) function to MetricsQL. It returns time series with peaks outside the Median absolute deviation multiplied by
tolerance
. -
FEATURE: add
histogram_quantiles("phiLabel", phi1, ..., phiN, buckets)
function to MetricsQL. It calculates the givenphi*
-quantiles over the givenbuckets
and returns time series per each quantile with the corresponding{phiLabel="phi*"}
label. -
FEATURE: add
quantiles_over_time("phiLabel", phi1, ..., phiN, series_selector[d])
function to MetricsQL. It calculates the givenphi*
-quantiles over raw samples selected byseries_selector
on the given lookbehind windowd
. It returns time series per each quantile with the corresponding{phiLabel="phi*"}
label. -
FEATURE: enterprise: do not ask for
-eula
flag if-version
flag is passed to enteprise app. See this issue. -
BUGFIX: properly handle queries with multiple filters matching empty labels such as
metric{label1=~"foo|",label2="bar|"}
. This filter must match the following series:metric
,metric{label1="foo"}
,metric{label2="bar"}
andmetric{label1="foo",label2="bar"}
. Previously it was matching onlymetric{label1="foo",label2="bar"}
. See this issue. -
BUGFIX: vmselect: reset connection timeouts after each request to
vmstorage
. This should prevent fromcannot read data in 0.000 seconds: unexpected EOF
warning in logs. See this issue. Thanks to @mxlxm . -
BUGFIX: keep metric name for time series returned from rollup_candlestick function, since the returned series don't change the meaning of the original series. See this issue.
-
BUGFIX: use Prometheus-compatible label value formatting for count_values function. Previously big values could be improperly formatted, which could break query results, which rely on label value such as
... on(label) count_values("label", ...)
. -
BUGFIX: vmagent: properly use
https
scheme for wildcard TLS certificates forrole: ingress
targets in Kubernetes service discovery. See this issue. -
BUGFIX: vmagent: support host networking mode for
docker_sd_config
. See this issue. -
BUGFIX: fix non-repeatable results from
quantile_over_time()
function when the number of input samples exceeds 1000. See this issue. -
BUGFIX: vmagent: fix EC2 zone discovery when
filters
are specified in ec2_sc_config. See this issue.
v1.65.0
Released at 01-09-2021
-
FEATURE: vmagent: add ability to read scrape configs from multiple files specified in
scrape_config_files
section. See this issue. -
FEATURE: vmagent: reduce memory usage and CPU usage when Prometheus staleness tracking is enabled for metrics exported from the deleted or disappeared scrape targets.
-
FEATURE: vmagent: add the ability to limit the number of unique time series scraped per each target. This can be done either globally via
-promscrape.seriesLimitPerTarget
command-line option or on per-target basis viaseries_limit
option atscrape_config
section. See the updated docs on cardinality limiter and this issue. -
FEATURE: vmagent: discover
role: ingress
androle: endpointslice
in kubernetes_sd_config via v1 API instead of v1beta1 API if Kubernetes supports it. This fixes service discovery in Kubernetes v1.22 and newer versions. See these docs. -
FEATURE: take into account failed queries in
vm_request_duration_seconds
summary at/metrics
. Previously only successful queries were taken into account. This could result in skewed summary. See this pull request. -
FEATURE: vmalert: add an official dashboard for vmalert. See these docs.
-
FEATURE: vmalert: add ability to set additional labels per group via
labels
config section. See this issue. -
FEATURE: vmalert: add
-disableAlertgroupLabel
command-line flag for disabling the label with alert group name. This may be needed for proper deduplication in Alertmanager. See this issue. -
FEATURE: update Go builder from v1.16.7 to v1.17.0. This improves data ingestion and query performance by up to 5% according to benchmarks. See the release post for Go1.17.
-
FEATURE: vmagent: expose
promscrape_discovery_http_errors_total
metric, which can be used for monitoring the number of failed discovery attempts per eachhttp_sd
config. -
FEATURE: do not reset response cache when a sample with old timestamp is ingested into VictoriaMetrics if
-search.disableAutoCacheReset
command-line option is set. See this feature request. -
FEATURE: add
quantiles("phiLabel", phi1, ..., phiN, q)
aggregate function to MetricsQL, which calculates the givenphi*
quantiles over time series returned byq
. See this feature request. -
BUGFIX: rename
sign
function tosgn
in order to be consistent with PromQL. See this pull request from Prometheus. -
BUGFIX: vmagent: add
role: endpointslice
in kubernetes_sd_config in order to be consistent with Prometheus. Previously this role was supported with incorrect name:role: endpointslices
. Now bothendpointslice
andendpointslices
are supported. See the corresponding code in Prometheus. -
BUGFIX: improve the detection of the needed free space for background merge operation. This should prevent from possible out of disk space crashes during big merges. See this issue.
-
BUGFIX: vmauth: remove trailing slash from the full url before requesting it from the backend. See this pull request.
-
BUGFIX: vmbackupmanager: fix timeout error when snapshot takes longer than 10 seconds. See this issue.
-
BUGFIX: properly parse OpenTSDB
put
messages with multiple spaces between message elements. See this issue. Thanks to @envzhu for the fix.
v1.64.1
Released at 19-08-2021
-
FEATURE: add
bitmap_and(q, mask)
,bitmap_or(q, mask)
andbitmak_xor(q, mask)
functions to MetricsQL. These functions allow performing bitwise operations over data points in time series. See this issue. -
FEATURE: vmalert: add
-remoteWrite.disablePathAppend
command-line flag, which can be used when custom-remoteWrite.url
must be specified. For example,./vmalert -disablePathAppend -remoteWrite.url='http://foo.bar/a/b/c?d=e'
would write data tohttp://foo.bar/a/b/c?d=e
instead ofhttp://foo.bar/a/b/c?d=e/api/v1/write
. See this pull request. -
FEATURE: vmagent: add
-promscrape.noStaleMarkers
command-line flag for disabling sending Prometheus stale markers for metrics from disappeared scrape targets. This option may be used for reducing memory usage when scraping big number of metrics with big number of labels and when stale markers aren't needed. -
FEATURE: vmselect: add
-search.noStaleMarkers
command-line flag for disabling stale markers handling in queries. This may save some CPU time when the queried data doesn't contain stale markers. -
BUGFIX: vmagent: stop scrapers for deleted targets before starting scrapers for added targets. This should prevent from possible time series overlap when old targets are substituted by new targets (for example, during new deployment in Kubernetes). The overlap could lead to incorrect query results. See this issue.
-
BUGFIX: vmagent: send Prometheus stale markers for the previously scraped metrics on failed scrapes like Prometheus does. See this article.
-
BUGFIX: upgrade base Docker image from Alpine 3.14.0 to Alpine 3.14.1 . This fixes potential security issues - see Alpine 3.14.1 release notes.
-
BUGFIX: disable overriding the lookbehind window
[d]
atlast_over_time(m[d])
ifd
is smaller than the interval between samples, since users don't expect implicit overriding of explicitly set[d]
inlast_over_time(m[d])
.
v1.64.0
Released at 15-08-2021
-
FEATURE: add support for Prometheus staleness markers. See this issue.
-
FEATURE: vmagent: automatically generate Prometheus staleness markers for the scraped metrics when scrape targets disappear in the same way as Prometheus does. See this issue.
-
FEATURE: add
present_over_time(m[d])
function, which returns 1 ifm
has a least a single sample over the previous durationd
. This function has been added also to Prometheus 2.29. -
FEATURE: vmagent: support multitenant writes according to these docs. This allows using a single
vmagent
instance in front of VictoriaMetrics cluster for all the tenants. Thanks to @omarghader for the pull request. See this issue. -
FEATURE: vmagent: add
__meta_ec2_availability_zone_id
label to discovered Amazon EC2 targets. This label is available in Prometheus starting from v2.29. -
FAETURE: vmagent: add
__meta_gce_interface_ipv4_<name>
labels to discovered GCE targets. These labels are available in Prometheus starting from v2.29. -
FEATURE: add
-search.maxSamplesPerSeries
command-line flag for limiting the number of raw samples a single query can process per each time series. This option can protect from out of memory errors when a query processes tens of millions of raw samples per series. See this issue. -
FEATURE: add
-search.maxSamplesPerQuery
command-line flag for limiting the number of raw samples a single query can process across all the time series. This option can protect from heavy queries, which select too big number of raw samples. Thanks to @jiangxinlingdu for the initial pull request. -
FEATURE: improve performance for queries that process big number of time series and/or samples on systems with big number of CPU cores.
-
FEATURE: vmalert: expose
vmalert_alerting_rules_last_evaluation_samples
andvmalert_recording_rules_last_evaluation_samples
metrics. See this issue. -
FEATURE: vminsert: expose
vm_rpc_send_duration_seconds_total
counter, which can be used for determining high saturation of everyvminsert -> vmstorage
link with an alerting queryrate(vm_rpc_send_duration_seconds_total) > 0.9s
. This query triggers when the link is saturated by more than 90%. This usually means that morevminsert
orvmstorage
nodes must be added to the cluster in order to increase the total number ofvminsert -> vmstorage
links. -
FEATURE: vmagent: expose
vmagent_remotewrite_send_duration_seconds_total
counter, which can be used for determining high saturation of every connection to remote storage with an alerting queryrate(vmagent_remotewrite_send_duration_seconds_total) > 0.9s
. This query triggers when a connection is saturated by more than 90%. This usually means that-remoteWrite.queues
command-line flag must be increased in order to increase the number of connections per each remote storage. -
FEATURE: vmui: automatically fill Server URL field. See this issue.
-
BUGFIX: fix corner cases for queries on time ranges exceeding 40 days. Previously some series can be missing in query results. See this issue.
-
BUGFIX: vmselect: return dummy response at
/rules
page in the same way as for/api/v1/rules
page. The/rules
page is requested by Grafana 8. See this issue for details. -
BUGFIX: vmbackup: automatically set default
us-east-1
S3 region if it is missing. This should simplify using S3-compatible services such as MinIO for backups. See this issue. -
BUGFIX: vmselect: prevent from possible deadlock when multiple
target
query args are passed to Graphite Render API. -
BUGFIX: return series with
a op b
labels andN
values for(a op b) default N
if(a op b)
returns series with all NaN values. Previously such series were removed. -
BUGFIX: vmui: fix layout when the query selects more than 27 time series. See this issue.
-
BUGFIX: vmagent: restore highlighting in red for DOWN targets at
/targets
page. See this issue.
v1.63.0
Released at 15-07-2021
-
FEATURE: reduce memory usage by up to 30% on production workloads.
-
FEATURE: vmselect: embed vmui into a single-node VictoriaMetrics and into
vmselect
component of cluster version. See this feature request. The web interface is available at the following paths:/vmui/
for a single-node VictoriaMetrics/select/<accountID>/vmui/
forvmselect
at cluster version of VictoriaMetrics
-
FEATURE: support durations anywhere in MetricsQL queries. For example,
sum_over_time(m[1h]) / 1h
is a valid query, which is equivalent tosum_over_time(m[1h]) / 3600
. -
FEATURE: support durations without suffixes in MetricsQL queries. For example,
rate(m[3600])
is a valid query, which is equivalent torate(m[1h])
. -
FEATURE: export
vmselect_request_duration_seconds
andvminsert_request_duration_seconds
VictoriaMetrics histograms at/metrics
page. These histograms can be used for determining latency distribution and SLI/SLO for the served requests. For example, the following query would return the percent of queries that took less than 500ms during the last hour:histogram_share(500ms, sum(rate(vmselect_request_duration_seconds_bucket[1h])) by (vmrange))
. -
FEATURE: vmagent: dynamically reload client TLS certificates from disk on every mTLS connection. This should allow using
vmagent
with Istio service mesh. See this feature request. -
FEATURE: log http request path plus all the query args on errors during request processing. Previously only http request path was logged without query args, so it could be hard debugging such errors.
-
FEATURE: add
is_set
label toflag
metrics. This allows determining explicitly set command-line flags with the queryflag{is_set="true"}
. -
FEATURE: add ability to remove caches stored inside
<-storageDataPath>/cache
on startup ifreset_cache_on_startup
file is present there. See this feature request. -
BUGFIX: vmagent: remove
{ %space %}
typo in/targets
output. The typo has been introduced in v1.62.0. See this issue. -
BUGFIX: vmagent: fix CSS styles on
/targets
page. See this issue. -
BUGFIX: vmalert: accept Prometheus-like durations in
interval
config option insidegroup
section. See this issue. -
BUGFIX: properly update
vm_merge_need_free_disk_space
metric at/metrics
page when there is no enough free disk space for performing optimal merges. See this issue.
v1.62.0
Released at 25-06-2021
-
FEATURE: vmagent: add service discovery for Docker (aka docker_sd_config). See this pull request.
-
FEATURE: vmagent: add service discovery for DigitalOcean (aka digitalocean_sd_config). See this feature request.
-
FEATURE: vmagent: change the default value for
-remoteWrite.queues
from 4 to2 * numCPUs
. This should reduce scrape duration for highly loaded vmagent, which scrapes tens of thousands of targets. See this pull request. -
FEATURE: vmagent: show the number of samples the target returns during the last scrape on
/targets
and/api/v1/targets
pages. This should simplify debugging targets, which may return too big or too low number of samples. See this feature request. -
FEATURE: vmagent: show jobs with zero discovered targets on
/targets
page. This should help debugging improperly configured scrape configs. -
FEATURE: vmagent: support for http-based service discovery (aka http_sd_config), which has been added since Prometheus 2.28. See this feature request.
-
FEATURE: vmagent: support namespace in Consul serive discovery in the same way as Prometheus 2.28 does. See this issue for details.
-
FEATURE: vmagent: support generic auth configs in
consul_sd_configs
in the same way as Prometheus 2.28 does. See this issue for details. -
FEATURE: vmctl: limit the number of samples per each imported JSON line. This should limit the memory usage at VictoriaMetrics side when importing time series with big number of samples.
-
FEATURE: vmselect: log slow queries across all the
/api/v1/*
handlers (aka Prometheus query API) if their execution duration exceeds-search.logSlowQueryDuration
. This should simplify debugging slow requests to such handlers as/api/v1/labels
or/api/v1/series
additionally to/api/v1/query
and/api/v1/query_range
, which were logged in the previous releases. -
FEATURE: vminsert: sort the
-storageNode
list in order to guarantee the identicalseries -> vmstorage
mapping across all thevminsert
nodes. This should reduce resource usage (RAM, CPU and disk IO) atvmstorage
nodes ifvmstorage
addresses are passed in random order tovminsert
nodes. -
FEATURE: vmstorage: reduce memory usage on a system with many CPU cores under high ingestion rate.
-
BUGFIX: prevent from adding new samples to deleted time series after the rotation of the inverted index (the rotation is performed once per
-retentionPeriod
). See this comment for details. -
BUGFIX: vmstorage: reduce high disk write IO usage on systems with big number of CPU cores. The issue has been introduced in the release v1.59.0. See this commit and this comment for details.
-
BUGFIX: vmstorage: prevent from incorrect stats collection when multiple concurrent queries execute the same tag filter. This may help reducing CPU usage under certain workloads. See this issue.
-
BUGFIX: vmselect: return the last timestamp for the max / min value from
tmax_over_time(m[d])
andtmin_over_time(m[d])
MetricsQL functions as most users expect. See also this issue. -
BUGFIX: vmselect: return the expected value for
increase_pure()
MetricsQL function after a gap in a time series. Previously incorrect too big value could be returned after the gap fromincrease_pure()
.
v1.61.1
Released at 11-06-2021
- BUGFIX: vmalert: fix recording rules, which were broken in v1.61.0. See this issue.
- BUGFIX: reset the on-disk cache for mapping from the full metric name to an internal metric id (e.g.
metric_name{labels} -> internal_metric_id
) after deleting metrics via delete API. This should prevent from possible inconsistent state after unclean shutdown. This this issue.
v1.61.0
Released at 09-06-2021
-
FEATURE: vmalert: add support for backfilling (aka replay) of recording and alerting rules. See these docs and this feature request.
-
FEATURE: vmalert: add a command-line flag
-rule.configCheckInterval
for automatic re-reading of-rule
files without the need to send SIGHUP signal. See this issue. -
FEATURE: vmagent: respect the
sample_limit
and-promscrape.maxScrapeSize
values when scraping targets in stream parsing mode. See this pull request. -
FEATURE: vmauth: add ability to specify mutliple
url_prefix
entries for balancing the load among multiplevmselect
and/orvminsert
nodes in a cluster. See these docs. -
FEATURE: vminsert: add
-disableRerouting
command-line flag for forcibly disabling the rerouting. This should help resolving this and this issues. -
FEATURE: vminsert: reduce the probability of global re-routing storm if all the vmstorage nodes cannot keep up with the given ingestion rate for some time. This should improve cluster stability in such cases. See this and this issues.
-
FEATURE: allow building VictoriaMetrics components for Solaris / SmartOS. See this issue.
-
FEATURE: vmagent: add ability to debug relabeling rules. See these docs and this issue.
-
BUGFIX: reduce CPU usage by up to 2x during querying a database with big number of active daily time series. The issue has been introduced in
v1.59.0
. -
BUGFIX: vmagent: properly apply auth and tls configs in
eureka_sd_configs
. See this pull request. -
BUGFIX: vmauth: do not panic on aborted http requests. See this issue.
-
BUGFIX: properly generate
target
property for*Series(foo.*.bar)
responses returned from Graphite Render API. Previously thetarget
contained the expanded list of series forfoo.*.bar
, e.g.sumSeries(foo.a.bar,foo.b.bar,...foo.z.bar)
. Now VictoriaMetrics returnssumSeries(foo.*.bar)
as a target in the same way as Graphite does.
v1.60.0
Released at 24-05-2021
-
FEATURE: add ability to limit the number of unique time series, which can be added to storage per hour and per day. This can help dealing with high cardinality and high churn rate issues. See these docs.
-
FEATURE: vmagent: add ability to limit the number of unique time series, which can be sent to remote storage systems per hour and per day. This can help dealing with high cardinality and high churn rate issues. See these docs.
-
FEATURE: vmalert: add ability to run alerting and recording rules for multiple tenants. See this issue and these docs.
-
FEATURE: vminsert: add support for data ingestion via other
vminsert
nodes. This allows building multi-level data ingestion paths in VictoriaMetrics cluster by writing data from one level ofvminsert
nodes to another level ofvminsert
nodes. See these docs and this comment for details. -
FEATURE: vmagent: reload
bearer_token_file
,credentials_file
andpassword_file
contents every second. This allows dynamically changing the contents of these files during target scraping and service discovery without the need to restartvmagent
. See this issue. -
FEATURE: vmalert: add a flag to control behaviour on startup for state restore errors. Such errors were returned and logged before as well. Now user can specify whether to just log these errors (
-remoteRead.ignoreRestoreErrors=true
) or to stop the process (-remoteRead.ignoreRestoreErrors=false
). The latter is important when VM isn't ready yet to serve queries from vmalert and it needs to wait. See this issue. -
FEATURE: vmalert: add ability to pass
round_digits
query arg to datasource via-datasource.roundDigits
command-line flag. This can be used for limiting the number of decimal digits after the point in recording rule results. See this issue. -
FEATURE: return
X-Server-Hostname
header in http responses of all the VictoriaMetrics components. This should simplify tracing the origin server behind a load balancer or behind auth proxy during troubleshooting. -
FEATURE: vmselect: allow to use 2x more memory for query processing at
vmselect
nodes in VictoriaMetrics cluster. This should allow processing heavy queries without the need to increase RAM size atvmselect
nodes. -
FEATURE: add ability to filter
/api/v1/status/tsdb
output with arbitrary time series selectors passed viamatch[]
query args. See these docs and this issue for details. -
FEATURE: automatically detect memory and cpu limits for VictoriaMetrics components running under cgroup v2 environments such as HashiCorp Nomad. See this issue.
-
FEATURE: vmauth: allow
-auth.config
reloading via/-/reload
http endpoint. See this issue. -
FEATURE: add
timezone_offset(tz)
function. It returns offset in seconds for the given timezonetz
relative to UTC. This can be useful when combining with datetime-related functions. For example,day_of_week(time()+timezone_offset("America/Los_Angeles"))
would return weekdays forAmerica/Los_Angeles
time zone. SpecialLocal
time zone can be used for returning an offset for the time zone set on the host where VictoriaMetrics runs. See this issue and MetricsQL docs for more details. -
FEATURE: vmagent: add support for OAuth2 authorization for scrape targets and service discovery in the same way as Prometheus does. See these docs.
-
FEATURE: vmagent: add support for OAuth2 authorization when writing data to
-remoteWrite.url
. See-remoteWrite.oauth2.*
config params in/path/to/vmagent -help
output. -
FEATURE: vmalert: add ability to set
extra_filter_labels
at alerting and recording group configs. See these docs. -
FEATURE: vmstorage: reduce memory usage by up to 30% when ingesting big number of active time series.
-
BUGFIX: vmagent: do not retry scraping targets, which don't support HTTP. This should reduce CPU load and network usage at
vmagent
and at scrape target. See this issue. -
BUGFIX: vmagent: fix possible race when refreshing
role: endpoints
androle: endpointslices
scrape targets inkubernetes_sd_config
. Prevoiuslypod
objects could be updated after the relatedendpoints
object update. This could lead to missing scrape targets. See this issue. -
BUGFIX: vmagent: properly spread scrape targets among
vmagent
replicas if-promscrape.cluster.replicationFactor
exceeds 1. See this pull request. -
BUGFIX: vmagent: limit
scrape_timeout
byscrape_interval
. This guarantees that only a single sample is lost during the configuredscrape_interval
when scrape target responds slowly. See this comment for details. -
BUGFIX: properly remove stale parts outside the configured retention if
-retentionPeriod
is smaller than one month. Previously stale parts could remain active for up to a month after they go outside the retention. -
BUGFIX: stop the process on panic errors, since such errors may leave the process in inconsistent state. Previously panics could be recovered, which could result in unexpected hard-to-debug further behavior of running process.
-
BUGFIX: vminsert, vmagent: make sure data ingestion connections are closed before completing graceful shutdown. Previously the connection may remain open, which could result in trailing samples loss.
-
BUGFIX: vmauth, vmalert: properly re-use HTTP keep-alive connections to backends and datasources. Previously only 2 keep-alive connections per backend could be re-used. Other connections were closed after the first request. See this issue for details.
-
BUGFIX: vmalert: fix false positive error
result contains metrics with the same labelset after applying rule labels
, which could be triggered when recording rules generate unique metrics. See this issue. -
BUGFIX: vmctl: properly import InfluxDB rows if they have a field and a tag with identical names. See this issue.
-
BUGFIX: properly reload configs if
SIGHUP
signal arrives during service initialization. Previously suchSIGHUP
signal could be ingonred and configs weren't reloaded. -
BUGFIX: vmalert: properly import default rules from OpenShift. See this issue.
-
BUGFIX: reduce the probability of
the removal queue is full
panic when highly loaded VictoriaMetrics stores data on NFS. See this issue.
v1.59.0
Released at 01-05-2021
-
FEATURE: improved new time series registration speed on systems with many CPU cores. See this issue. Thanks to @waldoweng for the idea and draft implementation.
-
FEATURE: vmalert: use the same technique as Grafana for determining evaluation timestamps for recording rules. This should make consistent graphs for series generated by recording rules compared to graphs generated for queries from recording rules in Grafana. See this issue.
-
FEATURE: vmauth: add ability to set madatory query args in
url_prefix
. For example,url_prefix: http://vm:8428/?extra_label=team=dev
would addextra_label=team=dev
query arg to all the incoming requests. See the example for more details. -
FEATURE: vmctl: add OpenTSDB migration option. See more details here. Thanks to @johnseekins!
-
FEATURE: log metrics with dropped labels if the number of labels in the ingested metric exceeds
-maxLabelsPerTimeseries
. This should simplify debugging for this case. -
FEATURE: vmagent: list user-visible endpoints at
http://vmagent:8429/
. See this issue. -
BUGFIX: vmagent: properly update
role: endpoints
androle: endpointslices
scrape targets if the underlying service objects are updated inkubernetes_sd_config
. See this issue. -
BUGFIX: vmagent: apply
scrape_timeout
on receiving the first response byte fromstream_parse: true
scrape targets. Previously it was applied to receiving and processing the full response stream. This could result in false timeout errors when scrape target exposes millions of metrics as described here. -
BUGFIX: vmagent: eliminate possible data race when obtaining value for the metric
vm_persistentqueue_bytes_pending
. The data race could result in incorrect value for this metric. -
BUGFIX: vmstorage: remove empty directories on startup. Such directories can be left after unclean shutdown on NFS storage. Previously such directories could lead to crashloop until manually removed. See this issue.
v1.58.0
Released at 08-04-2021
-
FEATURE: vminsert and vmagent: add
-sortLabels
command-line flag for sorting metric labels before pushing them tovmstorage
. This should reduce the size ofMetricName -> internal_series_id
cache (akavm_cache_size_bytes{type="storage/tsid"}
) when ingesting samples for the same time series with distinct order of labels. For example,foo{k1="v1",k2="v2"}
andfoo{k2="v2",k1="v1"}
represent a single time series. Labels sorting is disabled by default, since the majority of established exporters preserve the order of labels for the exported metrics. -
FEATURE: allow specifying label value alongside label name for the
others sum
time series returned fromtopk_*
andbottomk_*
functions from MetricsQL. For example,topk_avg(3, max(process_resident_memory_bytes) by (instance), "instance=other_sum")
would return top 3 series frommax(process_resident_memory_bytes) by (instance)
plus a series containing the sum of other series. Theothers sum
series will have{instance="other_sum"}
label. -
FEATURE: do not delete
dst_label
when applyinglabel_copy(q, "src_label", "dst_label")
andlabel_move(q, "src_label", "dst_label")
to series withoutsrc_label
and with non-emptydst_label
. See more details at MetricsQL docs. -
FEATURE: update Go builder from
v1.16.2
tov1.16.3
. This should fix these issues. -
FEATURE: vmagent: add support for
follow_redirects
option toscrape_configs
section in the same way as Prometheus 2.26 does. -
FEATURE: vmagent: add support for
authorization
section in-promscrape.config
in the same way as Prometheus 2.26 does. -
FEATURE: vmagent: add support for socks5 proxy in
proxy_url
config option. See this issue. -
FEATURE: vmagent: add support for
socks5 over tls
proxy inproxy_url
config option. It can be set up with the following config:proxy_url: "tls+socks5://proxy-addr:port"
. -
FEATURE: vmagent: reduce memory usage when
-remoteWrite.queues
is set to a big value. See this issue. -
FEATURE: vmagent: add AWS IAM roles for tasks support for EC2 service discovery according to these docs.
-
FEATURE: vmagent: add support for
proxy_tls_config
,proxy_authorization
,proxy_basic_auth
,proxy_bearer_token
andproxy_bearer_token_file
options inconsul_sd_config
,dockerswarm_sd_config
andeureka_sd_config
sections. -
FEATURE: vmagent: pass
X-Prometheus-Scrape-Timeout-Seconds
header to scrape targets as Prometheus does. In this case scrape targets can limit the time needed for performing the scrape. See this comment for details. -
FEATURE: vmagent: drop corrupted persistent queue files at
-remoteWrite.tmpDataPath
instead of throwing a fatal error. Corrupted files can appear after unclean shutdown ofvmagent
such as OOM kill or hardware reset. See this issue. -
FEATURE: vmauth: add support for authorization via bearer token. See the docs for details.
-
FEATURE: publish
arm64
andamd64
binaries for cluster version of VictoriaMetrics at releases page. -
BUGFIX: properly handle
/api/v1/labels
and/api/v1/label/<label_name>/values
queries on bigstart ... end
time range. This should fix big resource usage when VictoriaMetrics is queried with Promxy v0.0.62 or newer versions. -
BUGFIX: do not break sort order for series returned from
topk*
,bottomk*
andoutliersk
MetricsQL functions. See this issue. -
BUGFIX: vmagent: properly work with simple HTTP proxies which don't support
CONNECT
method. For example, PushProx. See this issue. -
BUGFIX: vmagent: properly discover targets if multiple namespace selectors are put inside
kubernetes_sd_config
. See this issue. -
BUGFIX: vmagent: properly discover
role: endpoints
androle: endpointslices
targets inkubernetes_sd_config
. See this issue. -
BUGFIX: properly generate filename for
*.tar.gz
archive inside_checksums.txt
file posted at releases page. See this issue.
v1.57.1
Released at 30-03-2021
-
FEATURE: publish vmutils for
GOOS=arm
on releases page. -
BUGFIX: prevent from possible incomplete query results after timed out query.
-
BUGFIX: vmselect: remove
-search.storageTimeout
command-line flag, since it has the same meaning as-search.maxQueryDuration
. See this issue. -
BUGFIX: vminsert: return back
type
label to per-tenant metricvm_tenant_inserted_rows_total
. See this issue.
v1.57.0
Released at 29-03-2021
-
FEATURE: optimize query performance by up to 10x on systems with many CPU cores. See this tweet.
-
FEATURE: add the following metrics at
/metrics
page for every VictoraMetrics app:process_resident_memory_anon_bytes
- RSS share for memory allocated by the process itself. This share cannot be freed by the OS, so it must be taken into account by OOM killer.process_resident_memory_file_bytes
- RSS share for page cache memory (aka memory-mapped files). This share can be freed by the OS at any time, so it must be ignored by OOM killer.process_resident_memory_shared_bytes
- RSS share for memory shared with other processes (aka shared memory). This share can be freed by the OS at any time, so it must be ignored by OOM killer.process_resident_memory_peak_bytes
- peak RSS usage for the process.process_virtual_memory_peak_bytes
- peak virtual memory usage for the process.
-
FEATURE: accept and enforce
extra_label=<label_name>=<label_value>
query arg at Graphite APIs. -
FEATURE: use InfluxDB field as metric name if measurement is empty and
-influxSkipSingleField
command-line is set. See this issue. -
FEATURE: vmagent: add
-promscrape.consul.waitTime
command-line flag for tuning the maximum wait time for Consul service discovery. See this issue. -
FEATURE: vmagent: add
vm_promscrape_discovery_kubernetes_stale_resource_versions_total
metric for monitoring the frequency oftoo old resource version
errors during Kubernetes service discovery. -
FEATURE: single-node VictoriaMetrics: log metrics with timestamps older than
-search.cacheTimestampOffset
compared to the current time. See these docs for details. -
BUGFIX: prevent from infinite loop on
{__graphite__="..."}
filters when a metric name contains*
,{
or[
chars. -
BUGFIX: prevent from infinite loop in
/metrics/find
and/metrics/expand
Graphite Metrics API handlers when they match metric names or labels with*
,{
or[
chars. -
BUGFIX: do not merge duplicate time series during requests to
/api/v1/query
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1141 -
BUGFIX: vmagent: properly handle
too old resource version
error messages from Kubernetes watch API. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1150 -
BUGFIX: vmagent: do not retry sending data blocks if remote storage returns
400 Bad Request
error. The number of dropped blocks due to such errors can be monitored withvmagent_remotewrite_packets_dropped_total
metrics. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1149 -
BUGFIX: properly calculate
summarize
and*Series
functions in Graphite Render API.
v1.56.0
Released at 17-03-2021
-
FEATURE: add the following functions to MetricsQL:
histogram_avg(buckets)
- returns the average value for the given buckets.histogram_stdvar(buckets)
- returns standard variance for the given buckets.histogram_stddev(buckets)
- returns standard deviation for the given buckets.
-
FEATURE: export
vm_available_memory_bytes
andvm_available_cpu_cores
metrics, which show the number of available RAM and available CPU cores for VictoriaMetrics apps. -
FEATURE: export
vm_index_search_duration_seconds
histogram, which can be used for troubleshooting time series search performance. -
FEATURE: vmagent: add ability to replicate scrape targets among
vmagent
instances in the cluster with-promscrape.cluster.replicationFactor
command-line flag. See these docs. -
FEATURE: vmagent: accept
scrape_offset
option atscrape_config
. This option may be useful when scrapes must start at the specified offset of every scrape interval. See these docs for details. -
FEATURE: vmagent: support
proxy_tls_config
,proxy_basic_auth
,proxy_bearer_token
andproxy_bearer_token_file
options atscrape_config
section for configuring proxies specified viaproxy_url
. See these docs. -
FEATURE: vmauth: allow using regexp paths in
url_map
. See this issue for details. -
FEATURE: accept
round_digits
query arg at/api/v1/query
and/api/v1/query_range
handlers. This option can be set at Prometheus datasource in Grafana for limiting the number of digits after the decimal point in response values. -
FEATURE: add
-influx.databaseNames
command-line flag, which can be used for accepting data from some Telegraf plugins such as fluentd plugin. See this issue. -
FEATURE: add
-logNewSeries
command-line flag, which can be used for debugging the source of time series churn rate. -
FEATURE: publish Windows builds for vmagent, vmalert, vmauth and vmctl at
vmutils-windows-*.zip
archives at releases page. -
FEATURE: listen for IPv6 UDP if
-enableTCP6
command-line flag is passed to VictoriaMetrics. See this issue. -
BUGFIX: vmagent: prevent from high CPU usage bug during failing scrapes with small
scrape_timeout
(less than a few seconds). -
BUGFIX: vmagent: reduce memory usage when Kubernetes service discovery is used in big number of distinct scrape config jobs by sharing Kubernetes object cache. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1113
-
BUGFIX: vmagent: apply
sample_limit
only aftermetric_relabel_configs
are applied as Prometheus does. Previously thesample_limit
was applied before metrics relabeling. -
BUGFIX: vmagent: properly apply
tls_config
,basic_auth
andbearer_token
to proxy connections ifproxy_url
option is set. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116 -
BUGFIX: vmagent: properly scrape targets via https proxy specified in
proxy_url
ifinsecure_skip_verify
flag isn't set intls_config
section. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1116 -
BUGFUX: avoid
duplicate time series
error ifprometheus_buckets()
covers a time range with distinct set of buckets. -
BUGFIX: prevent exponent overflow when processing extremely small values close to zero such as
2.964393875E-314
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1114 -
BUGFIX: do not include datapoints with a timestamp
t-d
when returning results from/api/v1/query?query=m[d]&time=t
as Prometheus does. -
BUGFIX: do not crash if a query contains
histogram_over_time()
function name with uppercase chars. For example,Histogram_Over_Time(m[5m])
.
v1.55.1
Released at 03-03-2021
- BUGFIX: vmagent: fix a panic in Kubernetes service discovery when a target is filtered out with relabeling. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1107
- BUGFIX: vmagent: fix Kubernetes service discovery for
role: ingress
. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1110
v1.55.0
Released at 02-03-2021
-
FEATURE: add
sign(q)
andclamp(q, min, max)
functions, which are planned to be added in the upcoming Prometheus release . Thelast_over_time(m[d])
function is already supported in MetricsQL. -
FEATURE: vmagent: add
scrape_align_interval
config option, which can be used for aligning scrapes to the beginning of the configured interval. See these docs for details. -
FEATURE: expose io-related metrics at
/metrics
page for every VictoriaMetrics component:process_io_read_bytes_total
- the number of bytes read via io syscalls such as read and preadprocess_io_written_bytes_total
- the number of bytes written via io syscalls such as write and pwriteprocess_io_read_syscalls_total
- the number of read syscalls such as read and preadprocess_io_write_syscalls_total
- the number of write syscalls such as write and pwriteprocess_io_storage_read_bytes_total
- the number of bytes read from storage layerprocess_io_storage_written_bytes_total
- the number of bytes written to storage layer
-
FEATURE: vmagent: add ability to spread scrape targets among multiple
vmagent
instances. See these docs and this issue for details. -
FEATURE: vmagent: use watch API for Kuberntes service discovery. This should reduce load on Kuberntes API server when it tracks big number of objects (for example, 10K pods). This should also reduce the time needed for k8s targets discovery. See this issue for details.
-
FEATURE: vmagent: export
vm_promscrape_target_relabel_duration_seconds
metric, which can be used for monitoring the time spend on relabeling for discovered targets. -
FEATURE: vmagent: optimize relabeling performance for common cases.
-
FEATURE: add
increase_pure(m[d])
function to MetricsQL. It works the same asincrease(m[d])
except of various edge cases. See this issue for details. -
FEATURE: increase accuracy for
buckets_limit(limit, buckets)
results for smalllimit
values. See MetricsQL docs for details. -
FEATURE: vmagent: initial support for Windows build with
CGO_ENABLED=0 GOOS=windows go build -mod=vendor ./app/vmagent
. See this and this issue. -
FEATURE: vmagent: support WebIdentityToken auth in EC2 service discovery. See this issue for details.
-
FEATURE: vmalert: properly process query params in
-datasource.url
and-remoteRead.url
command-line flags. See this issue for details. -
BUGFIX: vmagent: properly apply
-remoteWrite.rateLimit
when-remoteWrite.queues
is greater than 1. Previously there was a data race, which could prevent from proper rate limiting. -
BUGFIX: vmagent: properly perform graceful shutdown on
SIGINT
andSIGTERM
signals. The graceful shutdown has been broken inv1.54.0
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1065 -
BUGFIX: reduce the probability of
duplicate time series
errors when querying Kubernetes metrics. -
BUGFIX: properly calculate
histogram_quantile()
over time series with only a single non-zero bucket with{le="+Inf"}
. PreviouslyNaN
was returned, now the value for the last bucket before{le="+Inf"}
is returned like Prometheus does. -
BUGFIX: vmselect: do not cache partial query results on timeout when receiving data from
vmstorage
nodes. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1085 -
BUGFIX: properly handle
stale NFS file handle
error. -
BUGFIX: properly cache query results when
extra_label
query arg is used. Previously the cached results could clash for differentextra_label
values. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1095 -
BUGFIX: fix
http: superfluous response.WriteHeader call
issue. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1078 -
BUGFIX: fix arm64 builds due to the issue in
github.com/golang/snappy
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1074 -
BUGFIX: fix
index out of range [1024819115206086200] with length 27
panic, which could occur when1e-9
value is passed to VictoriaMetrics histogram. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1096 -
BUGFIX: fix parsing for Graphite line with empty tags such as
foo; 123 456
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1100 -
BUGFIX: unescape only
\\
,\n
and\"
in label names when parsing Prometheus text exposition format as Prometheus does. Previously other escape sequences could be improperly unescaped.
v1.54.1
Released at 18-02-2021
- BUGFIX: properly handle queries containing a filter on metric name plus any number of negative filters and zero non-negative filters. For example,
node_cpu_seconds_total{mode!="idle"}
. The bug was introduced in v1.54.0.
v1.54.0
Released at 18-02-2021
-
FEATURE: optimize searching for matching metrics for
metric{<label_filters>}
queries if<label_filters>
contains at least a single filter. For example, the queryup{job="foobar"}
should find the matching time series much faster than previously. -
FEATURE: reduce execution times for
q1 <binary_op> q2
queries by executingq1
andq2
in parallel. -
FEATURE: switch from Go1.15 to Go1.16 for building prod binaries.
-
FEATURE: single-node VictoriaMetrics now accepts requests to handlers with
/prometheus
and/graphite
prefixes such as/prometheus/api/v1/query
. This improves compatibility with handlers from VictoriaMetrics cluster. -
FEATURE: expose
process_open_fds
andprocess_max_fds
metrics. These metrics can be used for alerting whenprocess_open_fds
reachesprocess_max_fds
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/402 and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1037 -
FEATURE: vmalert: add
-datasource.appendTypePrefix
command-line option for querying both Prometheus and Graphite datasource in cluster version of VictoriaMetrics. See these docs for details. -
FEATURE: vmauth: add ability to route requests from a single user to multiple destinations depending on the requested paths. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1064
-
FEATURE: remove dependency on external programs such as
cat
,grep
andcut
when detecting cpu and memory limits inside Docker or LXC container. -
FEATURE: vmagent: add
__meta_kubernetes_endpoints_label_*
,__meta_kubernetes_endpoints_labelpresent_*
,__meta_kubernetes_endpoints_annotation_*
and__meta_kubernetes_endpoints_annotationpresent_*
labels forrole: endpoints
in Kubernetes service discovery. These labels where added in Prometheus 2.25. -
FEATURE: reduce the minimum supported retention period for inverted index (aka
indexdb
) from one month to one day. This should reduce disk space usage for<-storageDataPath>/indexdb
folder if-retentionPeriod
is set to values smaller than one month. -
FEATURE: vmselect: export per-tenant metrics
vm_vmselect_http_requests_total
andvm_vmselect_http_requests_duration_ms_total
. Other per-tenant metrics are available as a part of enterprise package. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/932 for details. -
BUGFIX: properly convert regexp tag filters containing escaped dots to non-regexp tag filters. For example,
{foo=~"bar\.baz"}
should be converted to{foo="bar.baz"}
. Previously it was incorrectly converted to{foo="bar\.baz"}
, which could result in missing time series for this tag filter. -
BUGFIX: do not spam error logs when discovering Docker Swarm targets without dedicated IP. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1028 .
-
BUGFIX: properly embed timezone data into VictoriaMetrics apps. This should fix
-loggerTimezone
usage inside Docker containers. -
BUGFIX: properly build Docker images for non-amd64 architectures (arm, arm64, ppc64le, 386) on Docker hub. Previously these images were incorrectly based on amd64 base image, so they didn't work.
-
BUGFIX: vmagent: return back unsent block to the queue during graceful shutdown. Previously this block could be dropped if remote storage is unavailable during vmagent shutdown. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1065 .
v1.53.1
Released at 03-02-2021
- BUGFIX: vmselect: fix the bug peventing from proper searching by Graphite filter with wildcards such as
{__graphite__="foo.*.bar"}
.
v1.53.0
Released at 03-02-2021
-
FEATURE: added vmctl tool to VictoriaMetrics release process. Now it is packaged in
vmutils-*.tar.gz
archive on the releases page. Source code forvmctl
tool has been moved from github.com/VictoriaMetrics/vmctl to github.com/VictoriaMetrics/VictoriaMetrics/app/vmctl. -
FEATURE: added
-loggerTimezone
command-line flag for adjusting time zone for timestamps in log messages. By default UTC is used. -
FEATURE: added
-search.maxStepForPointsAdjustment
command-line flag, which can be used for disabling adjustment for points returned by/api/v1/query_range
handler if such points have timestamps closer than-search.latencyOffset
to the current time. Such points may contain incomplete data, so they are substituted by the previous values forstep
query args smaller than one minute by default. -
FEATURE: vmselect: added ability to use Graphite-compatible filters in MetricsQL via
{__graphite__="foo.*.bar"}
syntax. This expression is equivalent to{__name__=~"foo[.][^.]*[.]bar"}
, but it works faster and it is easier to use when migrating from Graphite to VictoriaMetrics. This feature deprecates the usage of-search.treatDotsAsIsInRegexps
command-line flag. -
FEATURE: vmselect: added ability to set additional label filters, which must be applied during queries. Such label filters can be set via optional
extra_label
query arg, which is accepted by querying API handlers. For example, the request to/api/v1/query_range?extra_label=tenant_id=123&query=<query>
adds{tenant_id="123"}
label filter to the given<query>
. It is expected that theextra_label
query arg is automatically set by auth proxy sitting in front of VictoriaMetrics. Contact us if you need assistance with such a proxy. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1021 . -
FEATURE: vmalert: added
-datasource.queryStep
command-line flag for passing optionalstep
query arg to/api/v1/query
endpoint. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1025 -
FEATURE: vmalert: added ability to query Graphite datasource when evaluating alerting and recording rules. See these docs for details.
-
FEATURE: vmagent: added
-remoteWrite.roundDigits
command-line option for rounding metric values to the given number of decimal digits after the point before sending the metric to the corresponding-remoteWrite.url
. This option can be used for improving data compression on the remote storage, because values with lower number of decimal digits can be compressed better than values with bigger number of decimal digits. -
FEATURE: vmagent: added
-remoteWrite.rateLimit
command-line flag for limiting data transfer rate to-remoteWrite.url
. This may be useful when big amounts of buffered data is sent after temporarily unavailability of the remote storage. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1035 -
FEATURE: vmagent: export the following additional metrics, which may be useful during troubleshooting:
vm_promscrape_scrapes_failed_per_url_total
vm_promscrape_scrapes_skipped_by_sample_limit_per_url_total
vm_promscrape_discovery_requests_total
vm_promscrape_discovery_retries_total
vm_promscrape_scrape_retries_total
vm_promscrape_service_discovery_duration_seconds
-
FEATURE: vmselect: initial implementation for Graphite Render API.
-
BUGFIX: vmagent: reduce HTTP reconnection rate for scrape targets. Previously vmagent could errorneusly close HTTP keep-alive connections more frequently than needed.
-
BUGFIX: vmagent: retry scrape and service discovery requests when the remote server closes HTTP keep-alive connection. Previously
disable_keepalive: true
option could be used underscrape_configs
section when working with such servers.
v1.52.0
Released at 13-01-2021
-
FEATURE: provide a sample list of alerting rules for VictoriaMetrics components. It is available here.
-
FEATURE: disable final merge for data for the previous month at the beginning of new month, since it may result in high disk IO and CPU usage. Final merge can be enabled by setting
-finalMergeDelay
command-line flag to positive duration. -
FEATURE: add
tfirst_over_time(m[d])
andtlast_over_time(m[d])
functions to MetricsQL for returning timestamps for the first and the last data point inm
overd
duration. -
FEATURE: add ability to pass multiple labels to
sort_by_label()
andsort_by_label_desc()
functions. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992 . -
FEATURE: enforce at least TLS v1.2 when accepting HTTPS requests if
-tls
,-tlsCertFile
and-tlsKeyFile
command-line flags are set, because older TLS protocols such as v1.0 and v1.1 have been deprecated due to security vulnerabilities. -
FEATURE: support
extra_label
query arg for all HTTP-based data ingestion protocols. This query arg can be used for specifying extra labels which should be added for the ingested data. -
FEATURE: vmbackup: increase backup chunk size from 128MB to 1GB. This should reduce the number of Object storage API calls during backups by 8x. This may also reduce costs, since object storage API calls usually have non-zero costs. See https://aws.amazon.com/s3/pricing/ and https://cloud.google.com/storage/pricing#operations-pricing .
-
BUGFIX: properly parse escaped unicode chars in MetricsQL metric names, label names and function names. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/990
-
BUGFIX: override user-provided labels with labels set in
extra_label
query args during data ingestion over HTTP-based protocols. -
BUGFIX: vmagent: prevent from
dialing to the given TCP address time out
error when scraping big number of unavailable targets. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/987 -
BUGFIX: vmagent: properly show scrape duration on
/targets
page. Previously it was incorrectly shown as 0.000s. -
BUGFIX: vmagent: properly log errors when
-promscrape.streamParse
command-line flag is set. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1009 -
BUGFIX: vmagent: properly suppress errors when both
-promscrape.suppressScrapeErrors
and-promscrape.streamParse
command-line flags are set. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/1009 . -
BUGFIX: vmalert: return non-empty result in template func
query
stub to pass validation. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/989 . -
BUGFIX: upgrade base image for Docker packages from Alpine 3.12.1 to Alpine 3.12.3 in order to fix potential security issues. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1010
v1.51.0
Released at 27-12-2020
-
FEATURE: add
/api/v1/status/top_queries
handler, which returns the most frequently executed queries and queries that took the most time for execution. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907 -
FEATURE: vmagent: add support for
proxy_url
config option in Prometheus scrape configs. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/503 -
FEATURE: remove parts with stale data as soon as they go outside the configured
-retentionPeriod
. Previously such parts may remain active for long periods of time. This should help reducing disk usage for-retentionPeriod
smaller than one month. -
FEATURE: vmalert: allow setting multiple values for
-notifier.tlsInsecureSkipVerify
command-line flag per each-notifier.url
. -
BUGFIX: vmalert: properly escape multiline queries when passing them to Grafana. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/890
-
BUGFIX: vmagent: set missing
__meta_kubernetes_service_*
labels inkubernetes_sd_config
forendpoints
andendpointslices
roles. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/982 -
BUGFIX: do not adjust
offset
value provided in MetricsQL query. Previously it could be modified in order to improve response cache hit ratio. This is unneeded, since cache hit ratio should remain good because the query time range should be already aligned to multiple ofstep
values. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/976
v1.50.2
Released at 19-12-2020
-
FEATURE: do not publish duplicate Docker images with
-cluster
tag suffix for vmagent, vmalert, vmauth, vmbackup and vmrestore, since they are identical to images without-cluster
tag suffix. -
BUGFIX: vmalert: properly populate template variables. This has been broken in v1.50.0. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/974
-
BUGFIX: properly parse negative combined duration in MetricsQL such as
-1h3m4s
. It must be parsed as-(1h + 3m + 4s)
. Prevsiously it was parsed as-1h + 3m + 4s
. -
BUGFIX: properly parse lines in Prometheus exposition format and in OpenMetrics format with whitespace after the timestamp. For example,
foo 123 456 ## some comment here
. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/970
v1.50.1
Released at 15-12-2020
-
FEATURE: vmagent: export
vmagent_remotewrite_blocks_sent_total
andvmagent_remotewrite_blocks_sent_total
metrics for each-remoteWrite.url
. -
BUGFIX: vmagent: properly delete unregistered scrape targets from
/targets
and/api/v1/targets
pages. They weren't deleted due to the bug inv1.50.0
.
v1.50.0
Released at 15-12-2020
-
FEATURE: automatically reset response cache when samples with timestamps older than
now - search.cacheTimestampOffset
are ingested to VictoriaMetrics. This makes unnecessary disabling response cache during data backfilling or resetting it after backfilling is complete as described in these docs. This feature applies only to single-node VictoriaMetrics. It doesn't apply to cluster version of VictoriaMetrics becausevminsert
nodes don't know aboutvmselect
nodes where the response cache must be reset. -
FEATURE: vmalert: add
query
,first
andvalue
functions to alert templates. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/539 -
FEATURE: vmagent: return user-friendly HTML page when requesting
/targets
page from web browser. The page is returned in the old plaintext format when requesting via curl or similar tool. -
FEATURE: allow multiple whitespace chars between measurements, fields and timestamp when parsing InfluxDB line protocol. Though InfluxDB line protocol denies multiple whitespace chars between these entities, some apps improperly put multiple whitespace chars. This workaround allows accepting data from such apps.
-
FEATURE: export
vm_promscrape_active_scrapers{type="<sd_type>"}
metric for tracking the number of active scrapers per each service discovery type. -
FEATURE: export
vm_promscrape_scrapers_started_total{type="<sd_type>"}
andvm_promscrape_scrapers_stopped_total{type="<sd_type>"}
metrics for tracking churn rate for scrapers per each service discovery type. -
FEATURE: vmagent: allow setting per-
-remoteWrite.url
command-line flags for-remoteWrite.sendTimeout
and-remoteWrite.tlsInsecureSkipVerify
. -
BUGFIX: properly handle
*
and[...]
inside curly braces in query passed to Graphite Metrics API. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/952 -
BUGFIX: vmagent: fix memory leak when big number of targets is discovered via service discovery.
-
BUGFIX: vmagent: properly pass
datacenter
filter to Consul API server. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574#issuecomment-740454170 -
BUGFIX: properly handle CPU limits set on the host system or host container. The bugfix may result in lower memory usage on systems with CPU limits. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946
-
BUGFIX: prevent from duplicate
name
tag returned from/tags/autoComplete/tags
handler. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/942 -
BUGFIX: do not enable strict parsing for
-promscrape.config
if-promscrape.config.dryRun
comand-line flag is set. Strict parsing can be enabled with-promscrape.config.strictParse
command-line flag. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/944 -
BUGFIX: vminsert: properly update
vm_rpc_rerouted_rows_processed_total
metric. Previously it wasn't updated. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/955 -
BUGFIX: vmagent: properly recover when opening incorrectly stored persistent queue. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/964
-
BUGFIX: vmagent: properly handle scrape errors when stream parsing is enabled with
-promscrape.streamParse
command-line flag or withstream_parse: true
per-target config option. Previously such errors weren't reported at/targets
page. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/967 -
BUGFIX: assume the previous value is 0 when calculating
increase()
for the first point on the graph if its value doesn't exceed 100 and the delta between two first points equals to 0. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
v1.49.0
Released at 05-12-2020
-
FEATURE: optimize Consul service discovery speed when discovering big number of services. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/574
-
FEATURE: add
label_uppercase(q, label1, ... labelN)
andlabel_lowercase(q, label1, ... labelN)
function to MetricsQL for uppercasing and lowercasing values for the given labels. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/936 -
FEATURE: add
count_eq_over_time(m[d], N)
andcount_ne_over_time(m[d], N)
for counting the number of samples form
overd
that (equal / not equal) toN
. -
FEATURE: do not print usage info for all the command-line flags when incorrect command-line flag is passed. Previously it could be hard reading the error message about incorrect command-line flag because of too big usage info for all the flags.
-
FEATURE: upgrade Go builder from v1.15.5 to v1.15.6 . This fixes issues found in Go since v1.15.5.
-
BUGFIX: properly parse timestamps in OpenMetrics format - they are exposed as floating-point number in seconds instead of integer milliseconds unlike in Prometheus exposition format. See the docs.
-
BUGFIX: return
nan
fora >bool b
query whena
equals tonan
like Prometheus does. Previously0
was returned in this case. This applies to any comparison operation withbool
modifier. See these docs for details. -
BUGFIX: properly parse hex numbers in MetricsQL. Previously hex numbers with non-decimal digits such as
0x3b
couldn't be parsed. -
BUGFIX: handle
time() cmp_op metric
like Prometheus does - i.e. returnmetric
value ifcmp_op
comparison is true. Previouslytime()
value was returned. -
BUGFIX: return
nan
forminute(m)
query whenm
equals tonan
like Prometheus does. This applies to all the time-related functions such asday_of_month
,day_of_week
,days_in_month
,hour
,month
andyear
.
v1.48.0
Released at 26-11-2020
-
FEATURE: added Snap package for single-node VictoriaMetrics. This simplifies installation under Ubuntu to a single command:
snap install victoriametrics
-
FEATURE: vmselect: add
-replicationFactor
command-line flag for reducing query duration when replication is enabled and a part of vmstorage nodes are temporarily slow and/or temporarily unavailable. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/711 -
FEATURE: vminsert: export
vm_rpc_vmstorage_is_reachable
metric, which can be used for monitoring reachability of vmstorage nodes from vminsert nodes. -
FEATURE: vmagent: add Netflix Eureka service discovery (aka eureka_sd_config). See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/851
-
FEATURE: add
filters
option todockerswarm_sd_config
like Prometheus did in v2.23.0 - see https://github.com/prometheus/prometheus/pull/8074 -
FEATURE: expose
__meta_ec2_ipv6_addresses
label forec2_sd_config
like Prometheus will do in the next release. -
FEATURE: add
-loggerWarnsPerSecondLimit
command-line flag for rate limiting of WARN messages in logs. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/905 -
FEATURE: apply
loggerErrorsPerSecondLimit
and-loggerWarnsPerSecondLimit
rate limit per caller. I.e. log messages are suppressed if the same caller logs the same message at the rate exceeding the given limit. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/905#issuecomment-729395855 -
FEATURE: add remoteAddr to slow query log in order to simplify identifying the client that sends slow queries to VictoriaMetrics. Slow query logging is controlled with
-search.logSlowQueryDuration
command-line flag. -
FEATURE: add
/tags/delSeries
handler from Graphite Tags API. See https://docs.victoriametrics.com/#graphite-tags-api-usage -
FEATURE: log metric name plus all its labels when the metric timestamp is out of the configured retention. This should simplify detecting the source of metrics with unexpected timestamps.
-
FEATURE: add
-dryRun
command-line flag to single-node VictoriaMetrics in order to check config file pointed by-promscrape.config
. -
BUGFIX: properly parse Prometheus metrics with exemplars such as
foo 123 ## {bar="baz"} 1
. -
BUGFIX: properly parse "infinity" values in OpenMetrics format. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/924
v1.47.0
Released at 16-11-2020
-
FEATURE: vmselect: return the original error from
vmstorage
node in query response if-search.denyPartialResponse
is set. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/891 -
FEATURE: vmselect: add
"isPartial":{true|false}
field in JSON output for/api/v1/*
functions from Prometheus querying API."isPartial":true
is set if the response contains partial data because of a part ofvmstorage
nodes were unavailable during query processing. -
FEATURE: improve performance for
/api/v1/series
,/api/v1/labels
and/api/v1/label/<labelName>/values
on time ranges exceeding one day. -
FEATURE: vmagent: reduce memory usage when service discovery detects big number of scrape targets and the set of discovered targets changes over time. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825
-
FEATURE: vmagent: add
-promscrape.dropOriginalLabels
command-line option, which can be used for reducing memory usage when scraping big number of targets. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825#issuecomment-724308361 for details. -
FEATURE: vmalert: explicitly set extra labels to alert entities. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/870
-
FEATURE: add
-search.treatDotsAsIsInRegexps
command-line flag, which can be used for automatic escaping of dots in regexp label filters used in queries. For example, if-search.treatDotsAsIsInRegexps
is set, then the queryfoo{bar=~"aaa.bb.cc|dd.eee"}
is automatically converted tofoo{bar=~"aaa\\.bb\\.cc|dd\\.eee"}
. This may be useful for querying Graphite data. -
FEATURE: consistently return text-based HTTP responses such as
plain/text
andapplication/json
withcharset=utf-8
. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/897 -
FEATURE: update Go builder from v1.15.4 to v1.15.5. This should fix these issues in Go.
-
FEATURE: added
/internal/force_flush
http handler for flushing recently ingested data from in-memory buffers to persistent storage. See troubleshooting docs for more details. -
FEATURE: added Graphite Tags API support. See these docs for details.
-
BUGFIX: do not return data points in the end of the selected time range for time series ending in the middle of the selected time range. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/887 and https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845
-
BUGFIX: remove spikes at the end of time series gaps for
increase()
ordelta()
functions. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/894 -
BUGFIX: vminsert: properly return HTTP 503 status code when all the vmstorage nodes are unavailable. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/896
v1.46.0
Released at 07-11-2020
-
FEATURE: optimize requests to
/api/v1/labels
and/api/v1/label/<name>/values
whenstart
andend
args are set. -
FEATURE: reduce memory usage when query touches big number of time series.
-
FEATURE: vmagent: reduce memory usage when
kubernetes_sd_config
discovers big number of scrape targets (e.g. hundreds of thousands) and the majority of these targets (99%) are dropped during relabeling. Previously labels for all the dropped targets were displayed at/api/v1/targets
page. Now only up to-promscrape.maxDroppedTargets
such targets are displayed. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/878 for details. -
FEATURE: vmagent: reduce memory usage when scraping big number of targets with big number of temporary labels starting with
__
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825 -
FEATURE: vmagent: add
/ready
HTTP endpoint, which returns 200 OK status code when all the service discovery has been initialized. This may be useful during rolling upgrades. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/875 -
BUGFIX: vmagent: eliminate data race when
-promscrape.streamParse
command-line is set. Previously this mode could result in scraped metrics with garbage labels. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825#issuecomment-723198247 for details. -
BUGFIX: properly calculate
topk_*
andbottomk_*
functions from MetricsQL for time series with gaps. See https://github.com/VictoriaMetrics/VictoriaMetrics/pull/883
v1.45.0
Released at 02-11-2020
-
FEATURE: allow setting
-retentionPeriod
smaller than one month. I.e.-retentionPeriod=3d
,-retentionPeriod=2w
, etc. is supported now. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/173 -
FEATURE: optimize more cases according to https://utcc.utoronto.ca/~cks/space/blog/sysadmin/PrometheusLabelNonOptimization . Now the following cases are optimized too:
rollup_func(foo{filters}[d]) op bar
->rollup_func(foo{filters}[d]) op bar{filters}
transform_func(foo{filters}) op bar
->transform_func(foo{filters}) op bar{filters}
num_or_scalar op foo{filters} op bar
->num_or_scalar op foo{filters} op bar{filters}
-
FEATURE: improve time series search for queries with multiple label filters. I.e.
foo{label1="value", label2=~"regexp"}
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/781 -
FEATURE: vmagent: add
stream parse
mode. This mode allows reducing memory usage when individual scrape targets expose tens of millions of metrics. For example, during scraping Prometheus in federation mode. See-promscrape.streamParse
command-line option andstream_parse: true
config option forscrape_config
section in-promscrape.config
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/825 and troubleshooting docs for vmagent. -
FEATURE: vmalert: add
-dryRun
command-line option for validating the provided config files without the need to startvmalert
service. -
FEATURE: accept optional third argument of string type at
topk_*
andbottomk_*
functions. This is label name for additional time series to return with the sum of time series outside top/bottom K. See MetricsQL docs for more details. -
FEATURE: vmagent: expose
/api/v1/targets
page according to the corresponding Prometheus API. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/643 -
BUGFIX: vmagent: properly handle OpenStack endpoint ending with
v3.0
such ashttps://ostack.example.com:5000/v3.0
in the same way as Prometheus does. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/728#issuecomment-709914803 -
BUGFIX: drop trailing data points for time series with a single raw sample. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
-
BUGFIX: do not drop trailing data points for instant queries to
/api/v1/query
. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/845 -
BUGFIX: vmbackup: fix panic when
-origin
isn't specified. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/856 -
BUGFIX: vmalert: skip automatically added labels on alerts restore. Label
alertgroup
was introduced in this issue and automatically added to generated time series. By mistake, this new label wasn't correctly purged on restore event and affected alert's ID uniqueness. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/870 -
BUGFIX: vmagent: fix panic at scrape error body formating. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/864
-
BUGFIX: vmagent: add leading missing slash to metrics path like Prometheus does. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/835
-
BUGFIX: vmagent: drop packet if remote storage returns 4xx status code. This make the behaviour consistent with Prometheus. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/873
-
BUGFIX: vmagent: properly handle 301 redirects. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/869
v1.44.0
Released at 13-10-2020
-
FEATURE: automatically add missing label filters to binary operands as described at https://utcc.utoronto.ca/~cks/space/blog/sysadmin/PrometheusLabelNonOptimization . This should improve performance for queries with missing label filters in binary operands. For example, the following query should work faster now, because it shouldn't fetch and discard time series for
node_filesystem_files_free
metric without matching labels for the left side of the expression:node_filesystem_files{ host="$host", mountpoint="/" } - node_filesystem_files_free
-
FEATURE: vmagent: add Docker Swarm service discovery (aka dockerswarm_sd_config). See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/656
-
FEATURE: add ability to export data in CSV format. See these docs for details.
-
FEATURE: vmagent: add
-promscrape.suppressDuplicateScrapeTargetErrors
command-line flag for suppressingduplicate scrape target
errors. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/651 and https://docs.victoriametrics.com/vmagent.html#troubleshooting . -
FEATURE: vmagent: show original labels before relabeling is applied on
duplicate scrape target
errors. This should simplify debugging for incorrect relabeling. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/651 -
FEATURE: vmagent:
/targets
page now accepts optionalshow_original_labels=1
query arg for displaying original labels for each target before relabeling is applied. This should simplify debugging for target relabeling configs. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/651 -
FEATURE: add
-finalMergeDelay
command-line flag for configuring the delay before final merge for per-month partitions. The final merge is started after no new data is ingested into per-month partition during-finalMergeDelay
. -
FEATURE: add
vm_rows_added_to_storage_total
metric, which shows the total number of rows added to storage since app start. Thesum(rate(vm_rows_added_to_storage_total))
can be smaller thansum(rate(vm_rows_inserted_total))
if certain metrics are dropped due to relabeling. Thesum(rate(vm_rows_added_to_storage_total))
can be bigger thansum(rate(vm_rows_inserted_total))
if replication is enabled. -
FEATURE: keep metric name after applying MetricsQL functions, which don't change time series meaning. The list of such functions:
keep_last_value
keep_next_value
interpolate
running_min
running_max
running_avg
range_min
range_max
range_avg
range_first
range_last
range_quantile
smooth_exponential
ceil
floor
round
clamp_min
clamp_max
max_over_time
min_over_time
avg_over_time
quantile_over_time
mode_over_time
geomean_over_time
holt_winters
predict_linear
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/674
-
BUGFIX: properly handle stale time series after K8S deployment. Previously such time series could be double-counted. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/748
-
BUGFIX: return a single time series at max from
absent()
function like Prometheus does. -
BUGFIX: vmalert: accept days, weeks and years in
for:
part of config like Prometheus does. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/817 -
BUGFIX: fix
mode_over_time(m[d])
calculations. Previously the function could return incorrect results.
v1.43.0
Released at 06-10-2020
-
FEATURE: reduce CPU usage for repeated queries over sliding time window when no new time series are added to the database. Typical use cases: repeated evaluation of alerting rules in vmalert or dashboard auto-refresh in Grafana.
-
FEATURE: vmagent: add OpenStack service discovery aka openstack_sd_config. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/728 .
-
FEATURE: vmalert: make
-maxIdleConnections
configurable for datasource HTTP client. This option can be used for minimizing connection churn. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/795 . -
FEATURE: add
-influx.maxLineSize
command-line flag for configuring the maximum size for a single InfluxDB line during parsing. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/807 -
BUGFIX: properly handle
inf
values during background merge of LSM parts. PreviouslyInf
values could result inNaN
values for adjacent samples in time series. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/805 . -
BUGFIX: fill gaps on graphs for
range_*
andrunning_*
functions. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/806 . -
BUGFIX: make a copy of label with new name during relabeling with
action: labelmap
in the same way as Prometheus does. Previously the original label name has been replaced. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/812 . -
BUGFIX: support parsing floating-point timestamp like Graphite Carbon does. Such timestmaps are truncated to seconds.
v1.42.0
Released at 30-09-2020
-
FEATURE: use all the available CPU cores when accepting data via a single TCP connection for all the supported protocols. Previously data ingested via a single TCP connection could use only a single CPU core. This could limit data ingestion performance. The main benefit of this feature is that data can be imported at max speed via a single connection - there is no need to open multiple concurrent connections to VictoriaMetrics or vmagent in order to achieve the maximum data ingestion speed.
-
FEATURE: cluster: improve performance for data ingestion path from
vminsert
tovmstorage
nodes. The maximum data ingestion performance for a single connection betweenvminsert
andvmstorage
node scales with the number of available CPU cores onvmstorage
side. This should help with https://github.com/VictoriaMetrics/VictoriaMetrics/issues/791 . -
FEATURE: add ability to export / import data in native format via
/api/v1/export/native
and/api/v1/import/native
. This is the most optimized approach for data migration between VictoriaMetrics instances. Both single-node and cluster instances are supported. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/787#issuecomment-700632551 . -
FEATURE: add
reduce_mem_usage
query option to/api/v1/export
in order to reduce memory usage during data export / import. See these docs for details. -
FEATURE: improve performance for
/api/v1/series
handler when it returns big number of time series. -
FEATURE: add
vm_merge_need_free_disk_space
metric, which can be used for estimating the number of deferred background data merges due to the lack of free disk space. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/686 . -
FEATURE: add OpenBSD support. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/785 .
-
BUGFIX: properly apply
-search.maxStalenessInterval
command-line flag value. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/784 . -
BUGFIX: fix displaying data in Grafana tables. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/720 .
-
BUGFIX: do not adjust the number of detected CPU cores found at
/sys/devices/system/cpu/online
. The adjustment was increasing the resulting GOMAXPROC by 1, which looked confusing to users. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/685#issuecomment-698595309 . -
BUGFIX: vmagent: do not show
-remoteWrite.url
in initial logs if-remoteWrite.showURL
isn't set. See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/773 . -
BUGFIX: properly handle case when /metrics/find finds both a leaf and a node for the given
query=prefix.*
. In this case only the node must be returned with stripped dot in the end of id as carbonapi does.
Previous releases
See releases page.