Commit graph

4536 commits

Author SHA1 Message Date
Hui Wang
b48f5f3e59
lib/storage: fix metric vm_object_references{type="indexdb"} (#6937)
follow up
4ecc370acb

### 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/).
2024-09-05 16:42:49 +02:00
Aliaksandr Valialkin
2dd845fa53
lib/logstorage: properly fix incorrect extraction of common tokens for OR filters at distinct log fields
Previously (f1:foo OR f2:bar) was incorrectly returning `foo` token for `f1` and `bar` token for `f2`.
These tokens were used for checking against bloom filter for every data block, so the data block,
which didn't contain simultaneously `foo` token for `f1` field and `bar` token for `f2` field, was skipped.
This was incorrect, since such a block may contain logs matching the original OR filter.

The fix is to return common tokens from `OR`-delimted filters only if these tokens exist at EVERY such filter
for the given field name. If some `OR`-delimited filter misses the given field name, then `OR`-delimited filters
do not contain common tokens, which could be used for checking against bloom filter.

While at it, add more tests covering various edge cases for filters delimited by AND and OR.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6554
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6556
2024-09-05 14:29:50 +02:00
Artem Navoiev
25d433d75f
docs: remove old png file as we have webp now
Signed-off-by: Artem Navoiev <tenmozes@gmail.com>
2024-09-05 14:20:22 +02:00
Github Actions
da9c41e6b0
Automatic update Grafana datasource docs from VictoriaMetrics/victorialogs-datasource@edd3259 (#6946) 2024-09-05 05:19:03 -07:00
hagen1778
666316465c
docs: fix typo in vmagent.md
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-09-05 13:12:16 +02:00
f41gh7
be66aa5f4e
docs/changelog: mention enterprise changes
Signed-off-by: f41gh7 <nik@victoriametrics.com>
2024-09-04 15:39:34 +02:00
f41gh7
b8bbea8896
docs/changelog: moves victorialogs changes to proper file
Signed-off-by: f41gh7 <nik@victoriametrics.com>
2024-09-04 15:36:33 +02:00
Roman Khavronenko
45f53748ff
docs: clarify why 1.102.1 was publicly available (#6933)
### 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>
2024-09-04 14:42:17 +02:00
hagen1778
06779f0f67
docs: bump last LTS versions
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-09-04 14:10:50 +02:00
Andrii Chubatiuk
01430a155c
vlinsert: added opentelemetry logs support
Commit adds the following changes:

* Adds support of OpenTelemetry logs for Victoria Logs with protobuf encoded messages

*  json encoding is not supported for the following reasons:
   - It brings a lot of fragile code, which works inefficiently.
   - json encoding is impossible to use with language SDK.

* splits metrics and logs structures at lib/protoparser/opentelemetry/pb package.

* adds docs with examples for opentelemetry logs.

---
Related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4839

Co-authored-by: AndrewChubatiuk <andrew.chubatiuk@gmail.com>
Co-authored-by: f41gh7 <nik@victoriametrics.com>
2024-09-03 20:12:05 +02:00
f41gh7
8b36529b32
follow-up after 1731c0eabf
* updates change log
* adds VL-Debug http header
* updates doc
* extracts only the first value of http headers for VL-Stream-Fields and VL-Ignore-Fields.
  It makes behaviour the same as Query string args. And allows to easily configure client applications.
  Since most of the client collectors don't support multi value headers.

Signed-off-by: f41gh7 <nik@victoriametrics.com>
2024-09-03 19:16:10 +02:00
Andrii Chubatiuk
1731c0eabf
app/vlinsert: support getting _msg_field, _time_field, _stream_fields and _ignore_fields from headers
*  Many collectors don't support forwarding url query params to the remote system. It makes impossible to define stream fields for it. Workaround with proxy between VictoriaLogs and log shipper is too complicated solution.

* This commit adds the following changes:
 * Adds fallback to to headers params, if query param is empty for:
     _msg_field -> VL-Msg-Field
    _stream_fields -> VL-Stream-Fields
    _ignore_fields -> VL-Ignore-Fields
    _time_field -> VL-Time-Field
 * removes deprecations from victorialogs compose files, added more
output format examples for logstash, telegraf, fluent-bit

 related issue: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5310
2024-09-03 17:43:26 +02:00
hagen1778
4dcb6a3719
dashboards/vmagent: fix legend captions for stream aggregation related panels.
Before they were displaying wrong label names.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-09-03 14:23:35 +02:00
Hui Wang
d523015f27
stream aggregation: perform deduplication for all received data when … (#6711)
…specifying `-streamAggr.dedupInterval` or
`-remoteWrite.streamAggr.dedupInterval` command-line flag

[The
documentation](https://docs.victoriametrics.com/stream-aggregation/)
contains conflicting descriptions regarding deduplication for
non-matched series when `-remoteWrite.streamAggr.config` and / or
`-streamAggr.config` are set:
1. Statement below says **all the received data** is deduplicated:
>[vmagent](https://docs.victoriametrics.com/vmagent/) supports
relabeling, deduplication and stream aggregation for all the received
data, scraped or pushed. Then, the collected data will be forwarded to
specified -remoteWrite.url destinations. The data processing order is
the following:
>1. all the received data is relabeled according to the specified
[-remoteWrite.relabelConfig](https://docs.victoriametrics.com/vmagent/#relabeling)
(if it is set)
>2. all the received data is deduplicated according to specified
[-streamAggr.dedupInterval](https://docs.victoriametrics.com/stream-aggregation/#deduplication)
(if it is set to duration bigger than 0)

2. Another statement says the deduplication is performed individually
for the **matching samples**
>The de-deduplication is performed after applying
[relabeling](https://docs.victoriametrics.com/vmagent/#relabeling) and
before performing the aggregation. If the -remoteWrite.streamAggr.config
and / or -streamAggr.config is set, then the de-duplication is performed
individually per each [stream aggregation
config](https://docs.victoriametrics.com/stream-aggregation/#stream-aggregation-config)
for the matching samples after applying
[input_relabel_configs](https://docs.victoriametrics.com/stream-aggregation/#relabeling).


Considering the following deduplication use cases:
1. To apply deduplication(globally or for specific remoteWrite
destination) for all the received data, scraped or pushed
--- using `-streamAggr.dedupInterval` or
`-remoteWrite.streamAggr.dedupInterval`.
2. To deduplicate and aggregate metrics that match the rule `match`
filters
--- using `-remoteWrite.streamAggr.config` and specifiying
`dedup_interval` option in [stream aggregation
config](https://docs.victoriametrics.com/stream-aggregation/#stream-aggregation-config).
3. To deduplicate all the received data while having `streamAggr.config`
for some metrics
--- no way for a single vmagent now, need to set up two level vmagents

This PR implements case3.

---------

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
2024-09-03 10:47:05 +02:00
Github Actions
78067ff2c2
Automatic update Grafana datasource docs from VictoriaMetrics/victorialogs-datasource@1f6f9ea (#6925) 2024-09-03 10:23:18 +02:00
Github Actions
fd5469e039
Automatic update Grafana datasource docs from VictoriaMetrics/victoriametrics-datasource@297faf8 (#6926) 2024-09-03 10:23:02 +02:00
jackyin
975ed27a76
lib/logstorage: and filter results in unexpected response (#6556)
fix #6554
andfilter shouldn't return orfilter field which result in bloomfilter
return false.

---------

Co-authored-by: hagen1778 <roman@victoriametrics.com>
2024-09-03 10:17:44 +02:00
Github Actions
f102b14ac9
Automatic update operator docs from VictoriaMetrics/operator@7eaac41 (#6923)
Automated changes by
[create-pull-request](https://github.com/peter-evans/create-pull-request)
GitHub action

Signed-off-by: Github Actions <133988544+victoriametrics-bot@users.noreply.github.com>
Co-authored-by: tenmozes <1381404+tenmozes@users.noreply.github.com>
2024-09-02 14:15:29 -07:00
hagen1778
9d94573572
docs: fix broken links to prev changelogs
The prev links like `/changelog_2021/`
stopped working after 9dc8d1debd
because these files now require specifying the parent `changelog` in the path, like `/changelog/changelog_2021/`.

This fix adds an alias for an old link.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-31 16:34:21 +02:00
Ivan Yatskevich
8a8a1d5df2
docs/vmalert: mention VM Cloud where it can be helpful to a user (#6888)
### Describe Your Changes

Add mentions of VictoriaMetrics Cloud to the documentation of vmalert
where this info is helpful to a user.

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
2024-08-30 10:39:05 +02:00
Ivan Yatskevich
f6278d99dd
docs/quickstart: describe steps to run VM on VM Cloud (#6877)
### Describe Your Changes

Describe steps to run VictoriaMetrics Single node or Cluster on
VictoriaMetrics Cloud
### 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: hagen1778 <roman@victoriametrics.com>
2024-08-30 10:36:40 +02:00
Zhu Jiekun
f572365a93
docs: fix incorrect URLs for resetCache and OTel guide (#6906)
### Describe Your Changes

This pull request fixes incorrect URLs in two places:

1. In the OTel guide, which has been corrected in
https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6880, but one
incorrect URL is still missing.
2. In the URL example, the cache reset endpoint for vmselect / Cluster
version is `/internal/resetRollupResultCache`, but it is mistakenly
noted as `/select/internal/resetRollupResultCache`, which misguides the
user. (introduced in #4468)

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
2024-08-30 10:31:14 +02:00
hagen1778
b27c4b198f
docs/guides: fix images in vmgateway guide
Follow-up after ce4cc4cbb2

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-30 10:28:38 +02:00
hagen1778
11ae873d0a
docs/release-guide: rm RPM packages from the list
RPM packages are now managed by community at https://github.com/VictoriaMetrics-Community/victoriametrics-rpm

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-30 09:49:06 +02:00
Github Actions
f42ef2152f
Automatic update operator docs from VictoriaMetrics/operator@f82db30 (#6910)
Automated changes by
[create-pull-request](https://github.com/peter-evans/create-pull-request)
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Signed-off-by: Github Actions <133988544+victoriametrics-bot@users.noreply.github.com>
Co-authored-by: f41gh7 <18450869+f41gh7@users.noreply.github.com>
2024-08-29 19:45:09 +04:00
hagen1778
00d09d67dc
docs/victorialogs/CHANGELOG.md: mention issue #4750 in the change
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-29 15:09:52 +02:00
hagen1778
d5755e55ef
docs/CHANGELOG.md: update changelog with LTS release notes
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-29 13:27:27 +02:00
Github Actions
982c907ee1
Automatic update operator docs from VictoriaMetrics/operator@bf5e160 (#6901)
Automated changes by
[create-pull-request](https://github.com/peter-evans/create-pull-request)
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Signed-off-by: Github Actions <133988544+victoriametrics-bot@users.noreply.github.com>
Co-authored-by: f41gh7 <18450869+f41gh7@users.noreply.github.com>
2024-08-28 17:56:11 +02:00
hagen1778
5aeb759df9
docs/CHANGELOG.md: cut v1.103.0
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-28 13:48:31 +02:00
hagen1778
e71cfdcfa5
docs: pre-release doc update
* typo fix
* mention version starting from features are available

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-28 13:47:29 +02:00
hagen1778
d9982520a8
docs: update dedup docs for cluster
* remove repeating sentences
* clarify why identical dedup config is important

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-28 13:00:30 +02:00
f41gh7
40d55199fd
docs/changelog: mention bugfix
Signed-off-by: f41gh7 <nik@victoriametrics.com>
2024-08-28 11:51:02 +02:00
Nikolay
4ecc370acb
lib/storage: properly add previous indexDB metrics (#6890)
Previously, some extIndexDB metrics were not registered. It resulted
into missing metrics, if metric value was added to the extIndexDB. It's
a usual case for search requests at both indexes.

 Current commit updates all metrics from extIndexDB according to the
current IndexDB. It must fix such cases

Related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6868

### 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/).
2024-08-28 11:14:28 +02:00
Cuong Le
6154bc9466
VictoriaLogs/keyConcepts.md: fix broken anchor to #other-fields (#6896)
### Describe Your Changes

The anchor to "Other fields" section should be #other-fields (instead of
#other-field)

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

Signed-off-by: Cuong Le <cuongleqq@gmail.com>
2024-08-28 01:02:01 -07:00
Zhu Jiekun
52043796c9
docs: Add backup and restore doc for VictoriaLogs
This commit adds doc for VictoriaLogs backup and restore based on `rsync`.
2024-08-27 21:41:42 +02:00
rtm0
9fcfba3927
lib/storage: properly handle maxMetrics limit at metricID search
`TL;DR` This PR improves the metric IDs search in IndexDB:

- Avoid seaching for metric IDs twice when `maxMetrics` limit is
exceeded
- Use correct error type for indicating that the `maxMetrics` limit is
exceded
- Simplify the logic of deciding between per-day and global index search

A unit test has been added to ensure that this refactoring does not
break anything.

---

Function calls before the fix:

```
idb.searchMetricIDs
    |__ is.searchMetricIDs
        |__ is.searchMetricIDsInternal
            |__ is.updateMetricIDsForTagFilters
                |__ is.tryUpdatingMetricIDsForDateRange
                |                       |
                |__ is.getMetricIDsForDateAndFilters
```

- `searchMetricIDsInternal` searches metric IDs for each filter set. It
maintains a metric ID set variable which is updated every time the
`updateMetricIDsForTagFilters` function is called. After each successful
call, the function checks the length of the updated metric ID set and if
it is greater than `maxMetrics`, the function returns `too many
timeseries` error.
- `updateMetricIDsForTagFilters` uses either per-day or global index to
search metric IDs for the given filter set. The decision of which index
to use is made is made within the `tryUpdatingMetricIDsForDateRange`
function and if it returns `fallback to global search` error then the
function uses global index by calling `getMetricIDsForDateAndFilters`
with zero date.
- `tryUpdatingMetricIDsForDateRange` first checks if the given time
range is larger than 40 days and if so returns `fallback to global
search` error. Otherwise it proceeds to searching for metric IDs within
that time range by calling `getMetricIDsForDateAndFilters` for each
date.
- `getMetricIDsForDateAndFilters` searches for metric IDs for the given
date and returns `fallback to global search` error if the number of
found metric IDs is greater than `maxMetrics`.

Problems with this solution:

1. The `fallback to global search` error returned by
`getMetricIDsForDateAndFilters` in case when maxMetrics is exceeded is
misleading.
2. If `tryUpdatingMetricIDsForDateRange` proceeds to date range search
and returns `fallback to global search` error (because
`getMetricIDsForDateAndFilters` returns it) then this will trigger
global search in `updateMetricIDsForTagFilters`. However the global
search uses the same maxMetrics value which means this search is
destined to fail too. I.e. the same search is performed twice and fails
twice.
3. `too many timeseries` error is already handled in
`searchMetricIDsInternal` and therefore handing this error in
`updateMetricIDsForTagFilters` is redundant
4. updateMetricIDsForTagFilters is a better place to make a decision on
whether to use per-day or global index.

Solution:

1.  Use a dedicated error for `too many timeseries` case
2. Handle `too many timeseries` error in  `searchMetricIDsInternal` only
3. Move the per-day or global search decision from
`tryUpdatingMetricIDsForDateRange` to `updateMetricIDsForTagFilters` and
remove `fallback to global search` error.


---------

Signed-off-by: Artem Fetishev <wwctrsrx@gmail.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2024-08-27 21:39:03 +02:00
rtm0
eef6943084
lib/storage: properly register index records with RegisterMetricNames
Once the timeseries is in tsidCache, new entries won't be created in
per-day index because the RegisterMetricNames() code does consider
different dates for the same timeseries. So this case has been added.

The same bug exists for AddRows() but it is not manifested because the
index entries are finally created in updatePerDateData().

RegisterMetricNames also updated to increase the newTimeseriesCreated
counter because it actually creates new time series in index.

A unit tests has been added that check all possible data patterns
(different metric names and dates) and code branches in both
RegisterMetricNames and AddRows. The total number of new unit tests is
around 100 which increaded the running time of storage tests by 50%. 

---------

Signed-off-by: Artem Fetishev <wwctrsrx@gmail.com>
Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
2024-08-27 21:33:53 +02:00
hagen1778
6f17ee0d0f
docs: typo fix
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-27 15:49:29 +02:00
rtm0
e7f1297517
docs: document IndexDB (#6840)
### Describe Your Changes

This is an attempt to document IndexDB. I guess I was trying to touch
the important points that might be of interest for the end users while
refraining from making it too detailed (such as I did not enumerate and
describe all the specific record types).

Please take a look and any suggestions are very welcome.

### Checklist

The following checks are **mandatory**:

- [x ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Signed-off-by: Artem Fetishev <wwctrsrx@gmail.com>
2024-08-27 13:52:46 +02:00
Zhu Jiekun
e97e966f82
lib/promrelabel: follow-up for 8958cecad6
In the previous commit 8958cecad6
the default ports (80/443) were removed for both the `scrapeURL` and
`instance` label values for those targets without a port in
`__address__`. Different values in the `instance` label generate new
time series.

This commit reverts the changes made to the `instance` label. Now,
for those targets:
- `scrapeURL` will remain unchanged.
- The `instance` label value will include the default port.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6792
2024-08-27 13:04:26 +02:00
Zhu Jiekun
9c3b5116dd
docs: fix example links in getting started with OpenTelemetry (#6880)
### Describe Your Changes

Fix broken link on:
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/index.html#building-the-go-application-instrumented-with-metrics
- https://docs.victoriametrics.com/guides/app.go-collector.example
- https://docs.victoriametrics.com/guides/app.go.example

The valid links **could be**:
-
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/app.go-collector.example
-
https://docs.victoriametrics.com/guides/getting-started-with-opentelemetry/app.go.example

Also went throught `/guides` folder and did not found doc with same
issue. Please advice if you know more.

### Checklist

The following checks are **mandatory**:

- [x] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
2024-08-27 10:36:52 +02:00
Fred Navruzov
ac485a8486
docs: vmanomaly - release notes v1.15.[6-9] (#6879)
### Describe Your Changes

release notes for patches 1.15.6 - 9

### Checklist

The following checks are **mandatory**:

- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
2024-08-27 10:30:48 +02:00
YuDong Tang
295f2aa8ca
app/vmselect:add command-line flag -search.inmemoryBufSizeBytes (#6869)
add command-line flag `-search.inmemoryBufSizeBytes` for configuring size of in-memory buffers used by vmselect during processing of vmstorage responses. A new summary metric `vm_tmp_blocks_inmemory_file_size_bytes` is exposed to show the size of the buffer during requests processing.

The new setting can be used by experienced users to adjust memory usage by vmselect when processing
many small read requests. Instead of allocating 4MB buffers each time, vmselect can be instructed to lower
the buffer size via `-search.inmemoryBufSizeBytes`. To make the decision whether this flag needs to be adjusted
users can consult with `vm_tmp_blocks_inmemory_file_size_bytes` which shows the actual size of buffers used
during query processing.

----------

The detailed information of this PR can be found in
https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6851

### Checklist

The following checks are **mandatory**:

- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit cab3ef8294)
2024-08-26 14:48:53 +02:00
Github Actions
e7b3a996da
Automatic update operator docs from VictoriaMetrics/operator@3ba727f (#6875)
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2024-08-26 14:39:12 +02:00
Github Actions
84ca4d18f0
Automatic update operator docs from VictoriaMetrics/operator@369ab8d (#6866)
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2024-08-23 14:09:13 +02:00
Yury Akudovich
d0f5a9d77a
app/vmagent: add remoteWrite.retryMinInterval and remoteWrite.retryMaxTime flags (#6289)
## Describe Your Changes

Add RemoteWrite Retry Controls

This PR introduces two new flags to the remote write functionality:
- remoteWrite.retryMinInterval
- remoteWrite.retryMaxTime
 
These flags provide finer control over the retry behavior for
remoteWrite operations, allowing users to customize the minimum interval
between retries and the maximum duration for retry attempts.

Fixes #5486.

## Checklist

- [x] The following checks are mandatory:

My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).

---------

Signed-off-by: Yury Akudovich <ya@matterlabs.dev>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
2024-08-23 14:05:51 +02:00
Denys Holius
336406e2e1
docs/guides/guide-delete-or-replace-metrics/README.md: adds a link to the API examples (#6863)
### Describe Your Changes

Adds a link to the API example section that describes how to delete
metrics on VM Single.

### 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: hagen1778 <roman@victoriametrics.com>
2024-08-23 10:01:03 +02:00
Roman Khavronenko
70a94ea492
app/vmalert: update parsing for instant responses (#6859)
This change is made in attempt to reduce memory usage by vmalert when
parsing big instant responses from VM/Prometheus.

In
a5c427bac4
vmalert switched from std json lib to fastjson lib in order to reduce
amount of allocations, as according to highloaded profiles of vmalert
the CPU is mostly spent on GC.

But switching to fastjson resulted into excessive memory usage for cases
when vmalert has to parse long json lines, which usually happens when
instant response contains many `metric` objects.

In this change we do a mixed parsing:
1. Slice of `metric` objects is parsed with std lib to keep mem low
2. Each `metric` object is parsed with fastjson to reduce allocs

The benchmark results are the following:
```
pkg: github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/datasource
BenchmarkParsePrometheusResponse/Instant_std+fastjson-10                    1760            668959 ns/op          280147 B/op       5781 allocs/op
MBs allocated at heap: 493.078392
mallocs: 18655472
BenchmarkParsePrometheusResponse/Instant_fastjson-10                        6109            198258 ns/op          172839 B/op       5548 allocs/op
MBs allocated at heap: 1056.384464
mallocs: 34457184
BenchmarkParsePrometheusResponse/Instant_std-10                             1287            950987 ns/op          451677 B/op       9619 allocs/op
MBs allocated at heap: 580.802976
mallocs: 13351636
```
The benchmark function code with mem measurement is available here
https://gist.github.com/hagen1778/b9c3ca7f8ca7d6b21aec9777112c5810

The benchmark contains 3 results:
1. Instant_std+fastjson is the implementation in this change
2. Instant_fastjson-10 is the implementation from
a5c427bac4
3. BenchmarkParsePrometheusResponse/Instant_std-10 is implementation
before
a5c427bac4

According to these results, this new implementation is slower than
previous, but faster than before switching to fastjson. It also has
lower number of allocations and roughly the same memory allocation on
heap with GC turned off.

---------

Other changes:
1. rm BenchmarkMetrics as it doesn't measure anything
2. simplify BenchmarkParsePrometheusResponse into
BenchmarkPromInstantUnmarshal

### 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>
2024-08-22 17:36:11 +02:00
Yury Molodov
e35237920a
vmui: add column search in table settings (#6804)
### Describe Your Changes

Add search functionality to the column display settings in the table
 #6668
 

![image](https://github.com/user-attachments/assets/e9bd52c3-6428-4d4f-8b7f-d83dd80b6912)

### 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>
2024-08-22 16:57:26 +02:00
hagen1778
fa9de9b45c
docs: fix ordering in vmagent docs
Looks like auto-numeration doesn't work if item in the list
takes more than one line.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-08-22 11:58:27 +02:00