In this case the _msg field is set to the value specified in the -defaultMsgValue command-line flag.
This should simplify first-time migration to VictoriaLogs from other systems.
- Remove leading whitespace from the first lines in 'HTTP parameters' chapter.
This whitespace isn't needed for the markdown formatting.
- Add leading whitespace for the second sentence in the list bullet describing AccountID and ProjectID HTTP headers.
This fixes markdown formatting for this list bullet.
This msy be useful when ingesting logs from different sources, which store the log message in different fields.
For example, `_msg_field=message,event.data,some_field` will get log message from the first non-empty field:
`message`, `event.data` and `some_field`.
If the number of output (bloom, values) shards is zero, then this may lead to panic
as shown at https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7391 .
This panic may happen when parts with only constant fields with distinct values are merged into
output part with non-constant fields, which should be written to (bloom, values) shards.
### Describe Your Changes
"Single version" is unclear, since VM is also a single-executable. I
think "single-node" is clearer.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
### Describe Your Changes
- made small typo fix in case studies
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
This allows reducing the amounts of data, which must be read during queries over logs with big number of fields (aka "wide events").
This, in turn, improves query performance when the data, which needs to be scanned during the query, doesn't fit OS page cache.
This improves performance of `field_values` pipe when it is applied to large number of data blocks.
This also improves performance of /select/logsql/field_values HTTP API.
### Describe Your Changes
docs/vmanomaly - release 1.18.0
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
It is possible for in-memory part to be empty if ingested samples are
removed by retention filters. In this case, data will not be discarded
due to retention before creating in memory part. After in-memory parts
merge samples will be removed resulting in creating completely empty
part at destination.
This commit checks for resulting part and skips it, if it's empty.
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
### Describe Your Changes
Fix https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7334
available disk space should be
```
(vm_free_disk_space_bytes{job=~...} - vm_free_disk_space_limit_bytes{job=~...})
```
instead of
```
vm_free_disk_space_bytes{job=~...}
```
### Checklist
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- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
### Describe Your Changes
Fixes issues with incorrect updating of query and limit fields, and
resolves the problem where the display tab resets.
Related issue: #7279 and #7290
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
### Describe Your Changes
- update to recent versions of components
- add information about the license key
- add example configuration for remote write with oAuth identity for
vmagent
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
This commit adds Kubernetes Native Sidecar support.
It's the special type of init containers, that have restartPolicy == "Always" and continue to run after container initialization.
related issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7287
Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7182
- add a separate index cache for searches which might read through large
amounts of random entries. Primary use-case for this is retention and
downsampling filters, when applying filters background merge needs to
fetch large amount of random entries which pollutes an index cache.
Using different caches allows to reduce effect on memory usage and cache
efficiency of the main cache while still having high cache hit rate. A
separate cache size is 5% of allowed memory.
- reduce size of indexdb/dataBlocks cache in order to free memory for
new sparse cache. Reduced size by 5% and moved this to a separate cache.
- add a separate metricName search which does not cache metric names -
this is needed in order to allow disabling metric name caching when
applying downsampling/retention filters. Applying filters during
background merge accesses random entries, this fills up cache and does
not provide an actual improvement due to random access nature.
Merge performance and memory usage stats before and after the change:
- before
- after
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7309
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
Auto-adjust `-remoteWrite.concurrency` cmd-line flags with the number of
available CPU cores in the same way as vmagent does. With this change
the default behavior of vmalert in high-loaded installation should
become more resilient. This change also reduces
`-remoteWrite.flushInterval` from `5s` to `2s` to provide better data
freshness.
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
This commit properly adds `group_name` and `file` fields for recording rules web api response at `/api/v1/rules`.
Previously these fields were blank.
Related issue https://github.com/victoriaMetrics/victoriaMetrics/issues/7297
Signed-off-by: Antoine Deschênes <antoine.deschenes@linux.com>
### Describe Your Changes
- release 1.17.2 updates
- added sections on logging and CLI args to docs
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
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### Describe Your Changes
Changed highlight style for cmd flags
### Checklist
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guidelines](https://docs.victoriametrics.com/contributing/).
### Describe Your Changes
docs/vmanomaly: release 1.17.1
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
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### Describe Your Changes
Add support for
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6930
Calculate `-search.maxUniqueTimeseries` by
`-search.maxConcurrentRequests` and remaining memory if it's **not set**
or **less equal than 0**.
The remaining memory is affected by `-memory.allowedPercent`,
`-memory.allowedBytes` and cgroup memory limit.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
(cherry picked from commit 85f60237e2)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Group
[sleeps](daa7183749/app/vmalert/rule/group.go (L320))
random duration before start the evaluation, and during the sleep,
`g.updateCh <- new` will be blocked since there is no `<-g.updateCh`
waiting.
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
**Added ability to hide the hits chart**
- Users can now hide or show the hits chart by clicking the "eye" icon
located in the upper-right corner of the chart.
- When the chart is hidden, it will stop sending requests to
`/select/logsql/hits`.
- Upon displaying the chart again, it will automatically refresh. If a
relative time range is set, the chart will update according to the time
period of the logs currently being displayed.
**Hits chart visible:**
**Hits chart hidden:**
Related issue: #7117
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
### Describe Your Changes
Fixed the display of hits chart in VictoriaLogs.
See #7133
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
Unpack the full columnsHeader block instead of unpacking meta-information per each individual column
when the query, which selects all the columns, is executed. This improves performance when scanning
logs with big number of fields.
- Use parallel merge of per-CPU shard results. This improves merge performance on multi-CPU systems.
- Use topN heap sort of per-shard results. This improves performance when results contain millions of entries.
### Describe Your Changes
When debugging unexpected query results, add reduce_mem_usage=1 param to
export query to preserve duplicates.
### Checklist
The following checks are **mandatory**:
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guidelines](https://docs.victoriametrics.com/contributing/).
Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
### Describe Your Changes
docs/vmanomaly: release v1.17.0
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
After adding multitenant query feature at v1.104.0, searchQuery wasn't
properly unmarshalled at bottom vmselect in multi-level cluster setup.
It resulted into empty query responses.
This commit adds fallback to Unmarshal method of SearchQuery to fill
TenantTokens. It allows to properly execute search requests
at vmselect side.
Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7270
---------
Signed-off-by: f41gh7 <nik@victoriametrics.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
### Describe Your Changes
Add more detailed information about performing backups for
VictoriaMetrics cluster setup.
More detailed explanation should help to address questions similar to
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7225
### Checklist
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Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Previously unit `m` is not correctly supported.
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
If a dict flag has only one value without a prefix it is supposed to
replace default value.
Previously, when flag was set to `-flag=2` and the default value in
`NewDictInt` was set to 1 the resulting value for any `flag.Get()` call
would be 1 which is not expected.
This commit updates default value for the flag in case there is only one
entry for flag and the entry is a number without a key.
This affects cluster version and specifically `replicationFactor` flag
usage with vmstorage [node
groups](https://docs.victoriametrics.com/cluster-victoriametrics/#vmstorage-groups-at-vmselect).
Previously, the following configuration would effectively be ignored:
```
/path/to/vmselect \
-replicationFactor=2 \
-storageNode=g1/host1,g1/host2,g1/host3 \
-storageNode=g2/host4,g2/host5,g2/host6 \
-storageNode=g3/host7,g3/host8,g3/host9
```
Changes from this PR will force default value for `replicationFactor`
flag to be set to `2` which is expected as the result of this
configuration.
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6970.
This reduces the hard limit on duration for completing the test when
users run vmalert-tool on slow hosts.
---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
1. Verify if field in [fields
pipe](https://docs.victoriametrics.com/victorialogs/logsql/#fields-pipe)
exists. If not, it generates a metric with illegal float value "" for
prometheus metrics protocol.
2. check if multiple time range filters produce conflicted query time
range, for instance:
```
query: _time: 5m | stats count(),
start:2024-10-08T10:00:00.806Z,
end: 2024-10-08T12:00:00.806Z,
time: 2024-10-10T10:02:59.806Z
```
must give no result due to invalid final time range.
---------
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
It has been appeared that VictoriaLogs is frequently used for collecting logs with tens of fields.
For example, standard Kuberntes setup on top of Filebeat generates more than 20 fields per each log.
Such logs are also known as "wide events".
The previous storage format was optimized for logs with a few fields. When at least a single field
was referenced in the query, then the all the meta-information about all the log fields was unpacked
and parsed per each scanned block during the query. This could require a lot of additional disk IO
and CPU time when logs contain many fields. Resolve this issue by providing an (field -> metainfo_offset)
index per each field in every data block. This index allows reading and extracting only the needed
metainfo for fields used in the query. This index is stored in columnsHeaderIndexFilename ( columns_header_index.bin ).
This allows increasing performance for queries over wide events by 10x and more.
Another issue was that the data for bloom filters and field values across all the log fields except of _msg
was intermixed in two files - fieldBloomFilename ( field_bloom.bin ) and fieldValuesFilename ( field_values.bin ).
This could result in huge disk read IO overhead when some small field was referred in the query,
since the Operating System usually reads more data than requested. It reads the data from disk
in at least 4KiB blocks (usually the block size is much bigger in the range 64KiB - 512KiB).
So, if 512-byte bloom filter or values' block is read from the file, then the Operating System
reads up to 512KiB of data from disk, which results in 1000x disk read IO overhead. This overhead isn't visible
for recently accessed data, since this data is usually stored in RAM (aka Operating System page cache),
but this overhead may become very annoying when performing the query over large volumes of data
which isn't present in OS page cache.
The solution for this issue is to split bloom filters and field values across multiple shards.
This reduces the worst-case disk read IO overhead by at least Nx where N is the number of shards,
while the disk read IO overhead is completely removed in best case when the number of columns doesn't exceed N.
Currently the number of shards is 8 - see bloomValuesShardsCount . This solution increases
performance for queries over large volumes of newly ingested data by up to 1000x.
The new storage format is versioned as v1, while the old storage format is version as v0.
It is stored in the partHeader.FormatVersion.
Parts with the old storage format are converted into parts with the new storage format during background merge.
It is possible to force merge by querying /internal/force_merge HTTP endpoint - see https://docs.victoriametrics.com/victorialogs/#forced-merge .
Previously it was incorrectly used append for pre-allocated slice of labels.
This commit fixes slice append by allocating zero length slice with needed capacity.
---------
Co-authored-by: Nikolay <nik@victoriametrics.com>
### Describe Your Changes
Fix `Alert` component to prevent it from overflowing the screen when
displaying long messages.
Related issue: #7207
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
- Added functionality to cancel running queries on the Explore Logs and
Query pages.
- The loader was changed from a spinner to a top bar within the block.
This still indicates loading, but solves the issue of the spinner
"flickering," especially during graph dragging.
Related issue: #7097https://github.com/user-attachments/assets/98e59aeb-905b-4b9d-bbb2-688223b22a82
### Checklist
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Some IDPs encode scope as a slice of strings. Handle this gracefully by encoding a slice back to string.
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
(cherry picked from commit f61d8c3ebb)
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Empty fields are treated as non-existing fields by VictoriaLogs data model.
So there is no sense in returning empty fields in query results, since they may mislead and confuse users.
### Describe Your Changes
Fixed VictoriaLogs HA examples references in docs
### Checklist
The following checks are **mandatory**:
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s.partitions can be changed when new partition is registered or when old partition is dropped.
This could lead to data races and panics when s.partitions slice is accessed by concurrently executed queries.
The fix is to make a copy of the selected partitions under s.partitionsLock before performing the query.
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
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Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
### Describe Your Changes
added opentelemetry exponential histograms support. Such histograms are automatically converted into
VictoriaMetrics histogram with `vmrange` buckets.
### Checklist
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---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
Fixed button name in the cloud docs
### Checklist
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### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
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### Describe Your Changes
Update images with updated interface of the cloud solution
### Checklist
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This PR is based on
https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6777. The
differences are the following:
* it keeps backward compatibility for links
* it re-structures only original document file
* it adds #common-mistakes section, re-phrased
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
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Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
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### Describe Your Changes
docs/vmanomaly: updates for v1.16.3
### Checklist
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### Describe Your Changes
This PR adds the feature to parse a multi yaml doc following the
`\n---\n`
The issue is
[6753](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6753)
### Checklist
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---------
Signed-off-by: kirti purohit <kirti.purohit@hpe.com>
Co-authored-by: kirti purohit <kirti.purohit@hpe.com>
Co-authored-by: Jiekun <jiekun@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
The flags docs mention the flag that does not exist (and never existed).
Perhaps that was a typo.
`s/retryMaxInterval/retryMaxTime/g`
### Checklist
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Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
### Describe Your Changes
Currently, vmagent always uses a separate `http.Client` for every group
watcher in Kubernetes SD. With a high number of group watchers this
leads to large amount of opened connections.
This PR adds 2 changes to address this:
- re-use of existing `http.Client` - in case `http.Client` is connecting
to the same API server and uses the same parameters it will be re-used
between group watchers
- HTTP2 support - this allows to reuse connections more efficiently due
to ability of using streaming via existing connections.
See this issue for the details and test results -
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5971
### Checklist
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- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
---------
Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
### Describe Your Changes
Add darwin `amd64` and `arm64` builds for cluster binaries build.
### Checklist
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---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit b9115d6882)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
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Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
### Describe Your Changes
Please provide a brief description of the changes you made. Be as
specific as possible to help others understand the purpose and impact of
your modifications.
### Checklist
The following checks are **mandatory**:
- [x] My change adheres [VictoriaMetrics contributing
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---------
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
### Describe Your Changes
docs/vmanomaly: remove duplicate header in VmWriter docs
### Checklist
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### Describe Your Changes
docs for `vmanomaly`, updated after release 1.16.2
### Checklist
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### Describe Your Changes
fix of typos and improper version references in code snippets of example
usage
### Checklist
The following checks are **mandatory**:
- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
