Aliaksandr Valialkin
85a95bf60c
all: various fixes in command-line flag descriptions
2021-03-15 21:59:25 +02:00
Aliaksandr Valialkin
923cdb0552
app/vmselect/promql: reduce overhead on scrape interval estimation
...
It should be enough to use the first 20 datapoints instead of 100 datapoints for scrape interval estimation.
2021-03-15 20:31:33 +02:00
Aliaksandr Valialkin
82aab87446
app/vmselect/promql: fix tests after 2dae0a2c47
2021-03-15 20:18:59 +02:00
Aliaksandr Valialkin
2dae0a2c47
app/vmselect: add round_digits
query arg to /api/v1/query
and /api/v1/query_range
handlers for limiting the number of decimal digits after the point
2021-03-15 12:36:33 +02:00
Aliaksandr Valialkin
2096c6e464
app/vmselect/prometheus: typo fix after 7c002023d7
2021-03-12 12:19:36 +02:00
Aliaksandr Valialkin
7c002023d7
app/vmselect/prometheus: do not include datapoints with timestamps matching t-d
when returning results from /api/v1/query?query=m[d]&time=t
as Prometheus does
2021-03-12 12:16:50 +02:00
Aliaksandr Valialkin
fe8b12fbad
app/vmselect/promql: follow up for 433fff0006
2021-03-09 12:48:44 +02:00
Nikolay
433fff0006
duplicate timeseries fix for prometheus_buckets function ( #1119 )
...
* try fix for prometheus_buckets
* merge possible end of the bucket collision
2021-03-09 12:26:23 +02:00
Aliaksandr Valialkin
a14053ffa0
app/vmselect/promql: add histogram_avg()
, histogram_stddev()
and histogram_stdvar()
functions to MetricsQL
2021-03-04 14:12:07 +02:00
Aliaksandr Valialkin
2b53add6b2
app/vmselect/querystats: show the number of matching queries in the top by average duration and in the top by summary duration
...
This should help debugging slow queries.
2021-02-28 19:40:19 +02:00
Nikolay
186c078fac
adds enforced tag filters into cache key ( #1095 )
2021-02-27 00:15:53 +02:00
Aliaksandr Valialkin
d86e9b49c4
app/vmselect/promql: increase accuracy for buckets_limit()
function for small limits by skipping the first and the last buckets during merge
...
The first and the last buckets are usually `[0 ... leMin]` and `(leMax ... +Inf)`. If they are merged with adjancent buckets,
then the resulting accuracy can suffer.
2021-02-26 22:56:36 +02:00
Aliaksandr Valialkin
98854e5f2b
app/vmselect: add sign(q)
and clamp(q, min, max)
functions, which will be added in the upcoming Prometheus release
...
See https://twitter.com/roidelapluie/status/1363428376162295811
The `last_over_time(m[d])` function already exists in MetricsQL.
2021-02-24 17:24:56 +02:00
Aliaksandr Valialkin
f4135b0d14
app/vmselect/promql: properly calculate histogram_quantile() over zero buckets and only a single non-zero
le="+Inf"` bucket like Prometheus does
2021-02-24 00:42:22 +02:00
Aliaksandr Valialkin
fa03e0d210
app/vmselect/promql: add increase_pure()
function to MetricsQL
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/962
2021-02-22 19:14:15 +02:00
Aliaksandr Valialkin
9c70c1f21f
app/vmselect/promql: reduce the probability of duplicate time series
errors when querying Kubernetes metrics
2021-02-18 22:07:29 +02:00
Aliaksandr Valialkin
c4756f94da
app/vmselect/netstorage: reuse timeseriesWork objects in order to reduce memory allocations
2021-02-16 16:08:53 +02:00
Aliaksandr Valialkin
5a401225c7
app/vmselect/netstorage: use unsafe string as a key for a map when the map already contains the given key
...
This should prevent from a memory allocation and a string copy.
2021-02-16 15:43:10 +02:00
Aliaksandr Valialkin
4e39bf148c
vendor: update github.com/VictoriaMetrics/metrics from v1.13.1 to v1.14.0
...
The new version switches from log-linear histograms to log-based histograms,
which provide up to 3.6 times better accuracy.
2021-02-15 15:12:29 +02:00
Aliaksandr Valialkin
acdb401585
app/vmselect/prometheus: treat match
query arg in the same way as match[]
query arg
2021-02-11 15:02:21 +02:00
Aliaksandr Valialkin
2d33230793
app/vmselect/promql: properly make copies of EvalConfig
2021-02-11 12:41:15 +02:00
Aliaksandr Valialkin
7a3a9421f3
app/vmselect/promql: make a copy of EvalConfig when executing q1
and q2
in parallel for q1 binary_op q2
...
This should prevent from data races if the underlying functions modify EvalConfig contents.
2021-02-10 23:05:55 +02:00
Aliaksandr Valialkin
04faea8b45
app/vmselect: parallelize q1 <binary_op> q2
queries by running q1
and q2
in parallel
...
This should reduce query execution times.
2021-02-10 22:59:39 +02:00
Aliaksandr Valialkin
553016ea99
lib/storage: disable composite index usage when querying old data
2021-02-10 14:57:50 +02:00
Aliaksandr Valialkin
c7dccebaef
lib/storage: optimize search by label filters matching big number of time series
2021-02-10 00:44:54 +02:00
Aliaksandr Valialkin
803a00102a
app/{vminsert,vmselect}: accept requests to paths with /graphite
and /prometheus
prefixes
...
This should improve compatibility with path prefixes from VictoriaMetrics cluster.
See https://victoriametrics.github.io/Cluster-VictoriaMetrics.html#url-format
2021-02-04 20:01:18 +02:00
Aliaksandr Valialkin
4d43ab0875
app/vmselect: typo fix when stripping url path prefixes
2021-02-04 19:29:25 +02:00
Aliaksandr Valialkin
8629fd8a72
app/vmselect: deprecate -search.treatDotsAsIsInRegexps
in favor to {__graphite__="foo.*.bar"}
syntax
2021-02-03 20:36:01 +02:00
Aliaksandr Valialkin
d16f22f3a1
app/vmselect,lib/storage: properly parse Graphite selectors with inner wildcards
...
Example: foo{bar{x,yz},a[b-c],*de}
2021-02-03 20:14:22 +02:00
Aliaksandr Valialkin
157c02622b
app/vmselect: add ability to set Graphite-compatible filter via {__graphite__="foo.*.bar"}
syntax
2021-02-03 01:21:54 +02:00
Aliaksandr Valialkin
b43b498fd8
app/vmselect: add ability to pass extra_label=<label>=<value>
query arg to Prometheus Querying API
...
This enforced `{label="value"}` label filter to the query.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1021
2021-02-01 18:04:17 +02:00
Nikolay
195341a7cf
Graphite vmalert wip ( #112 )
...
* init implementation for graphite alerts
* adds graphite support for vmalert
* small fix
* changes vmalert graphite api with type
* updates tests
* small fix
* fixes graphite parse
* Fixes graphite from time
2021-02-01 15:05:32 +02:00
Aliaksandr Valialkin
c164a8d231
app/vmselect/promql: improve documentation for -search.maxPointsPertimeseries
command-line flag
...
This should reduce incorrect usage and assumptions for this flag.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1020
2021-01-22 13:00:10 +02:00
Aliaksandr Valialkin
8749c2dd92
app/vmselect: add -search.maxStepForPointsAdjustment
command-line flag, which can be used for disabling adjustment for points returned from /api/v1/query_range
handler if they have timestamps closer than -search.latencyOffset
to the current time
2021-01-19 22:56:32 +02:00
Aliaksandr Valialkin
011c5da785
app/vmselect/graphite: extract getCanonicalPath() function from loop body inside getCanonicalPaths()
2021-01-18 17:30:26 +02:00
Aliaksandr Valialkin
1051d8aa2d
app/vmselect/promql: add ability to pass multiple labels to sort_by_label
and sort_by_label_desc
functions
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/992
2021-01-13 12:44:51 +02:00
Aliaksandr Valialkin
acf1a2c72b
app/vmselect/promql: properly parse escaped multibyte utf8 code sequences in metric names and labels names
...
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/990
2021-01-13 10:59:42 +02:00
Aliaksandr Valialkin
1837f2f7d3
app/vmselect/promql: add tfirst_over_time(m[d])
and tlast_over_time(m[d])
MetricsQL functions for returning timestamps for the first and the last samples in m
over d
2021-01-12 16:12:12 +02:00
Aliaksandr Valialkin
c86286ec1d
app/vmselect/promql: do not ajdust offset
value provided in the 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 of `step` values.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/976
2020-12-27 14:09:25 +02:00
Aliaksandr Valialkin
4b7105a65b
app/vmselect: sync query stats handling with cluster version
2020-12-27 13:00:29 +02:00
Aliaksandr Valialkin
df0309eae0
app/vmselect/promql: simplify defer call for querystats.RegisterQuery
2020-12-27 12:06:04 +02:00
Aliaksandr Valialkin
ad4e6a9283
app/vmselect/querystats: reduce the default number of last queries to track from 100K to 20K
...
This should reduce memory usage in constrained environments
2020-12-25 17:40:47 +02:00
Aliaksandr Valialkin
59183f66d0
app/vmselect: refactor /api/v1/stats/top_queries
...
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
2020-12-25 16:44:29 +02:00
Nikolay
86630350bf
Adds query stats handler ( #945 )
...
* Adds query stat handler,
for query and query_range api, victoriametrics tracks query execution time,
stats are expored at /api/v1/status/queries endpoint with topN param
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/907
* fixed query stats bugs
* improves queryStats tracker
* improves query stat
* small fix
* fix tests
* added more tests
* fixes 386 tests
* naming fixes
* adds drop for outdated records
2020-12-25 16:42:05 +02:00
Aliaksandr Valialkin
88ac4dfc07
app/vmselect: properly parse negative combined offsets such as -1h2m3s
...
Previously such offsets were parsed as `-1h + 2m + 3s`. Now they are parsed as `-(1h + 2m + 3s)`.
2020-12-19 01:23:46 +02:00
Aliaksandr Valialkin
11fa458e39
app/vmselect/promql: return expected increase()
result for the first point on the graph with value not exceeding 100
2020-12-15 13:40:46 +02:00
Aliaksandr Valialkin
5ebfc275e6
app/victoria-metrics: automatically reset response cache when samples with too timestamps older than now - search.cacheTimestampOffset
are ingested
2020-12-14 13:08:28 +02:00
Aliaksandr Valialkin
ba8ac08739
app/vmselect/graphite: properly handle wildcards and charsets inside curly braces
...
For example, `foo{bar*,[a-f]a*b}` should match `foobar`, `foobar123`, `foofab`, etc.
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/952
2020-12-11 17:24:12 +02:00
Aliaksandr Valialkin
4146fc4668
all: properly handle CPU limits set on the host system/container
...
This can reduce memory usage on systems with enabled CPU limits.
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/946
2020-12-08 21:07:29 +02:00
Aliaksandr Valialkin
1906f841c9
app/vmselect/promql: do not reduce lookbehind window for any_rollup_func(m)
to -search.maxStalenessInterval
. It should equal to step
value passed to /api/v1/query_range
as most users expect
2020-12-08 15:16:17 +02:00