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2689 commits

Author SHA1 Message Date
Aliaksandr Valialkin
cd152693c6
Revert "Exemplar support (#5982)"
This reverts commit 5a3abfa041.

Reason for revert: exemplars aren't in wide use because they have numerous issues which prevent their adoption (see below).
Adding support for examplars into VictoriaMetrics introduces non-trivial code changes. These code changes need to be supported forever
once the release of VictoriaMetrics with exemplar support is published. That's why I don't think this is a good feature despite
that the source code of the reverted commit has an excellent quality. See https://docs.victoriametrics.com/goals/ .

Issues with Prometheus exemplars:

- Prometheus still has only experimental support for exemplars after more than three years since they were introduced.
  It stores exemplars in memory, so they are lost after Prometheus restart. This doesn't look like production-ready feature.
  See 0a2f3b3794/content/docs/instrumenting/exposition_formats.md (L153-L159)
  and https://prometheus.io/docs/prometheus/latest/feature_flags/#exemplars-storage

- It is very non-trivial to expose exemplars alongside metrics in your application, since the official Prometheus SDKs
  for metrics' exposition ( https://prometheus.io/docs/instrumenting/clientlibs/ ) either have very hard-to-use API
  for exposing histograms or do not have this API at all. For example, try figuring out how to expose exemplars
  via https://pkg.go.dev/github.com/prometheus/client_golang@v1.19.1/prometheus .

- It looks like exemplars are supported for Histogram metric types only -
  see https://pkg.go.dev/github.com/prometheus/client_golang@v1.19.1/prometheus#Timer.ObserveDurationWithExemplar .
  Exemplars aren't supported for Counter, Gauge and Summary metric types.

- Grafana has very poor support for Prometheus exemplars. It looks like it supports exemplars only when the query
  contains histogram_quantile() function. It queries exemplars via special Prometheus API -
  https://prometheus.io/docs/prometheus/latest/querying/api/#querying-exemplars - (which is still marked as experimental, btw.)
  and then displays all the returned exemplars on the graph as special dots. The issue is that this doesn't work
  in production in most cases when the histogram_quantile() is calculated over thousands of histogram buckets
  exposed by big number of application instances. Every histogram bucket may expose an exemplar on every timestamp shown on the graph.
  This makes the graph unusable, since it is litterally filled with thousands of exemplar dots.
  Neither Prometheus API nor Grafana doesn't provide the ability to filter out unneeded exemplars.

- Exemplars are usually connected to traces. While traces are good for some

I doubt exemplars will become production-ready in the near future because of the issues outlined above.

Alternative to exemplars:

Exemplars are marketed as a silver bullet for the correlation between metrics, traces and logs -
just click the exemplar dot on some graph in Grafana and instantly see the corresponding trace or log entry!
This doesn't work as expected in production as shown above. Are there better solutions, which work in production?
Yes - just use time-based and label-based correlation between metrics, traces and logs. Assign the same `job`
and `instance` labels to metrics, logs and traces, so you can quickly find the needed trace or log entry
by these labes on the time range with the anomaly on metrics' graph.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5982
2024-07-03 16:09:18 +02:00
Aliaksandr Valialkin
a5d60ad78e
app/vmagent/remotewrite,lib/streamaggr: re-use common code in tests after 879771808b
- Export streamaggr.LoadFromData() function, so it could be used in tests outside the lib/streamaggr package.
  This allows removing a hack with creation of temporary files at TestRemoteWriteContext_TryPush_ImmutableTimeseries.

- Move common code for mustParsePromMetrics() function into lib/prompbmarshal package,
  so it could be used in tests for building []prompbmarshal.TimeSeries from string.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6205
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6206
2024-07-03 15:22:51 +02:00
Aliaksandr Valialkin
f8779d1ed2
lib/streamaggr: follow-up for the commit c0e4ccb7b5
- Clarify docs for `Ignore aggregation intervals on start` feature.

- Make more clear the code dealing with ignoreFirstIntervals at aggregator.runFlusher() functions.
  It is better from readability and maintainability PoV using distinct a.flush() calls
  for distinct cases instead of merging them into a single a.flush() call.

- Take into account the first incomplete interval when tracking the number of skipped aggregation intervals,
  since this behaviour is easier to understand by the end users.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6137
2024-07-02 21:34:48 +02:00
Andrii Chubatiuk
252aa5a3ab
lib/protoparser/graphite: added -graphite.sanitizeMetricName flag (#6489)
### Describe Your Changes

Added flag to sanitize graphite metrics
fixes #6077

### 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>

(cherry picked from commit 476faf5578)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-07-02 17:16:00 +02:00
Aliaksandr Valialkin
7426b40250
lib/logstorage: allow writing after N in front of before N at stream_context pipe 2024-07-02 01:39:45 +02:00
Andrii Chubatiuk
937ae2ca90
lib/streamaggr: added stale samples metric, added metrics labels (#6462)
### Describe Your Changes

- added stale metrics counters for input and output samples
- added labels for aggregator metrics =>
`name="{rwctx}:{aggrId}:{aggrSuffix}"`
   - rwctx - global or number starting from 1
   - aggrid - aggregator id starting from 1
   - aggrSuffix - <interval>_(by|without)_label1_label2_labeln
   e.g: `name="global:1:1m_without_instance_pod"`

### 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>

(cherry picked from commit 861852f262)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-07-01 15:01:49 +02:00
Aliaksandr Valialkin
208a624d4d
lib/logstorage: properly search for the surrounding logs in stream_context pipe
The set of log fields in the found logs may differ from the set of log fields present in the log stream.
So compare only the log fields in the found logs when searching for the matching log entry in the log stream.

While at it, return _stream field in the delimiter log entry, since this field is used by VictoriaLogs Web UI
for grouping logs by log streams.
2024-07-01 02:33:00 +02:00
Aliaksandr Valialkin
76a58ae08d
lib/logstorage: add ability to store sorted log position into a separate field with sort ... rank <fieldName> syntax 2024-07-01 01:46:03 +02:00
Aliaksandr Valialkin
d0dca7b8c5
lib/logstorage: add delimiter between log chunks returned from | stream_context pipe 2024-07-01 01:46:02 +02:00
Aliaksandr Valialkin
4b3477e62b
lib/logstorage: add stream_context pipe, which allows selecting surrounding logs for the matching logs 2024-06-28 19:15:19 +02:00
Aliaksandr Valialkin
2f28819bb1
lib/logstorage: it is safe using | unroll pipe in live tailing
`| unroll` pipe can make multiple copies of rows from the input row.
This doesn't break live tailing, so allow `| unroll` pipe in live tailing.
2024-06-27 19:45:12 +02:00
Aliaksandr Valialkin
b26acec9a8
app/vlselect: properly return live tailing results 2024-06-27 15:06:15 +02:00
Aliaksandr Valialkin
dd62a2b9d6
lib/logstorage: work-in-progress 2024-06-27 14:21:03 +02:00
Andrii Chubatiuk
580d02c3f8
added IMDSv2 for YC SD (#6524)
### Describe Your Changes

Fixes https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5513

### Checklist

The following checks are **mandatory**:

- [ ] My change adheres [VictoriaMetrics contributing
guidelines](https://docs.victoriametrics.com/contributing/).
2024-06-26 19:12:35 +02:00
rtm0
48a5c4cb01
Fix Date metricid cache consistency under concurrent use (#6534)
### Describe Your Changes

Fix Date metricid cache consistency under concurrent use.
When one goroutine calls Has() and does not find the cache entry in the
immutable map it will acquire a lock and check the mutable map. And it
is possible that before that lock is acquired, the entry is moved from
the mutable map to the immutable map by another goroutine causing a
cache miss.

The fix is to check the immutable map again once the lock is acquired. 

### 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>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2024-06-26 19:12:34 +02:00
Aliaksandr Valialkin
d5cbda3424
app/vlstorage: add -retention.maxDiskSpaceUsageBytes command-line flag for limiting the retention at VictoriaLogs by disk space usage 2024-06-25 17:30:46 +02:00
Aliaksandr Valialkin
f24123a776
lib/logstorage: parse syslog structured data into separate fields in order to simplify further querying of this data 2024-06-25 14:54:25 +02:00
Aliaksandr Valialkin
1716c4e609
lib/logstorage: properly parse timezone offset at TryParseTimestampRFC3339Nano()
The TryParseTimestampRFC3339Nano() must properly parse RFC3339 timestamps with timezone offsets.

While at it, make tryParseTimestampISO8601 function private in order to prevent
from improper usage of this function from outside the lib/logstorage package.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6508
2024-06-25 14:54:24 +02:00
Aliaksandr Valialkin
2a7fcba330
lib/logstorage: make golangci-lint happy 2024-06-25 03:06:28 +02:00
Aliaksandr Valialkin
7026498359
lib/httpserver: revert 9b7e532172
Reason for revert: this commit doesn't resolve real security issues,
while it complicates the resulting code in subtle ways (aka security circus).

Comparison of two strings (passwords, auth keys) takes a few nanoseconds.
This comparison is performed in non-trivial http handler, which takes thousands
of nanoseconds, and the request handler timing is non-deterministic because of Go runtime,
Go GC and other concurrently executed goroutines. The request handler timing is even
more non-deterministic when the application is executed in shared environments
such as Kubernetes, where many other applications may run on the same host and use
shared resources of this host (CPU, RAM bandwidth, network bandwidth).

Additionally, it is expected that the passwords and auth keys are passed via TLS-encrypted connections.
Establishing TLS connections takes additional non-trivial time (millions of nanoseconds),
which depends on many factors such as network latency, network congestion, etc.

This makes impossible to conduct timing attack on passwords and auth keys in VictoriaMetrics components.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6423/files
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6392
2024-06-25 01:51:06 +02:00
Aliaksandr Valialkin
7de6f5b4ce
lib/logstorage: work-in-progress 2024-06-25 00:44:57 +02:00
Andrii Chubatiuk
50783fca4d
app/vmagent: add max_scrape_size to scrape config (#6434)
Related to
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6429

### 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>
(cherry picked from commit 1e83598be3)
2024-06-20 14:00:22 +02:00
Slava Bobik
a7266785ce
Fixed a typo in the FastQueue mutex comment (#6514)
### Describe Your Changes

Fixed a small typo in a comment about the mutex inside the FastQueue
struct

### Checklist

The following checks are **mandatory**:

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

(cherry picked from commit d236604d39)
2024-06-20 14:00:08 +02:00
Aliaksandr Valialkin
d5224f3363
lib/logstorage: work-in-progress 2024-06-20 03:10:37 +02:00
Zakhar Bessarab
886f545f81
lib/fs/fscore: do not trim content from path (#6503)
### Describe Your Changes

Trimming content which is loaded from an external pass leads to obscure
issues in case user-defined input contained trimmed chars. For example.
user-defined password "foo\n" will become "foo" while user will expect
it to contain a new line.

---
For example, a user defines a password which ends with `\n`. This often
happens when user Kubernetes secrets and manually encodes value as
base64-encoded string.

In this case vmauth configuration might look like:
```
users:
  - url_prefix:
      - http://vminsert:8480/insert/0/prometheus/api/v1/write
    name: foo
    username: foo
    password: "foobar\n"
```

vmagent configuration for this setup will use the following flags:
```
-remoteWrite.url=http://vmauth:8427/
-remoteWrite.basicAuth.passwordFile=/tmp/vmagent-password
-remoteWrite.basicAuth.username="foo"
```
Where `/tmp/vmagent-password` is a file with `foobar\n` password.

Before this change such configuration will result in `401 Unauthorized`
response received by vmagent since after file content will become
`foobar`.

---
An example with Kubernetes operator which uses a secret to reference the
same password in multiple configurations.

<details>
  <summary>See full manifests</summary>

`Secret`:
```
apiVersion: v1
data:
  name: Zm9v # foo
  password: Zm9vYmFy # foobar\n
  username: Zm9v= # foo
kind: Secret
metadata:
  name: vmuser
```

`VMUser`:
```
apiVersion: operator.victoriametrics.com/v1beta1
kind: VMUser
metadata:
  name: vmagents
spec:
  generatePassword: false
  name: vmagents
  targetRefs:
  - crd:
      kind: VMAgent
      name: some-other-agent
      namespace: example
  username: foo
  # note - the secret above is referenced to provide password
  passwordRef:
    name: vmagent
    key: password
```

`VMAgent`:
```
apiVersion: operator.victoriametrics.com/v1beta1
kind: VMAgent
metadata:
  name: example
spec:
  selectAllByDefault: true
  scrapeInterval: 5s
  replicaCount: 1
  remoteWrite:
    - url: "http://vmauth-vmauth-example:8427/api/v1/write"
      # note - the secret above is referenced as well
      basicAuth:
        username:
          name: vmagent
          key: username
        password:
          name: vmagent
          key: password
```

</details>

Since both config target exactly the same `Secret` object it is expected
to work, but apparently the result will be `401 Unauthrized` error.

### 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>
(cherry picked from commit 201fd6de1e)
2024-06-19 10:37:12 +02:00
Nihal
8fd46caa22
victoria-metrics: constant-time comparison of credentials like authkeys and basic auth credentials (#6423)
Changes for constant-time comparison of credentials like authkeys and
basic auth credentials.

See: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6392

---------

Signed-off-by: Syed Nihal <syed.nihal@nokia.com>
(cherry picked from commit 9b7e532172)
2024-06-19 10:37:09 +02:00
Aliaksandr Valialkin
c10a646d19
app/vlinsert/syslog: allow accepting syslog messages with different configs at different ports 2024-06-17 23:16:58 +02:00
hagen1778
863f1c2513
lib/streamaggr: remove accidentally committed changes
Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 34771ab293)
2024-06-17 14:25:45 +02:00
Roman Khavronenko
df7e300071
app/vmselect/promql: check for ranged vectors in aggr funcs if implicit conversions are disabled (#6450)
Check for ranged vector arguments in aggregate expressions when
`-search.disableImplicitConversion` or `-search.logImplicitConversion`
are enabled.
 For example, `sum(up[5m])` will fail to execute if these flags are set.

### 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>
(cherry picked from commit 6149adbe10)
2024-06-17 14:25:43 +02:00
Aliaksandr Valialkin
1750991119
lib/logstorage: work-in-progress 2024-06-17 12:13:25 +02:00
Andrii Chubatiuk
8ca1813bd2
lib/flagutil: use month limit for duration flag for parsed duration assessment (#6486)
use maxMonths limit for parsed duration flag value

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6330

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit faf67aa8b5)
2024-06-14 15:21:32 +02:00
Andrii Chubatiuk
abc233a902
lib/backup/s3remote: fixed credsFilePath flag (#6488)
properly use credsFilePath flag value

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6353

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit e678a9aa51)
2024-06-14 14:14:58 +02:00
Roman Khavronenko
5df50e5645
lib/streamaggr: prevent rate_sum and rate_avg from producing NaNs (#6482)
### Describe Your Changes

* check if `lastValue` was seen at least twice with different
timestamps. Otherwise, the difference between last timestamp and
previous timestamp could be `0` and will result into `NaN` calculation
* check if there items left in lastValue map after staleness cleanup.
Otherwise, `rate_avg` could have produce `NaN` result.

### 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>
(cherry picked from commit 51d19485bb)
2024-06-14 13:26:42 +02:00
Aliaksandr Valialkin
2bbf62b6f6
lib/leveledbytebufferpool: do not pool byte slices bigger than 2^18 bytes
Previously byte slices up to 2^20 bytes (e.g. 1Mb) were cached because of a typo in the commit c14dafce43 .

This could result in increased memory usage when vmagent scrapes many regular targets, which expose
relatively small number of metrics (e.g. up to a few thousand per target) and a few large targets such as kube-state-metrics,
which expose more than 10 thousand metrics. This is common case for Kubernetes monitoring.

While at it, remove pools for very small byte slices, since they are rarely used during scraping.
2024-06-13 17:02:05 +02:00
Aliaksandr Valialkin
faf07fbc67
lib/bytesutil: optimize internStringMap cleanup
- Make it in a separate goroutine, so it doesn't slow down regular intern() calls.

- Do not lock internStringMap.mutableLock during the cleanup routine, since now
  it is called from a single goroutine and reads only the readonly part of the internStringMap.
  This should prevent from locking regular intern() calls for new strings during cleanups.

- Add jitter to the cleanup interval in order to prevent from synchornous increase in resource usage
  during cleanups.

- Run the cleanup twice per -internStringCacheExpireDuration . This should save 30% CPU time spent
  on cleanup comparing to the previous code, which was running the cleanup 3 times per -internStringCacheExpireDuration .
2024-06-13 15:09:42 +02:00
Zakhar Bessarab
ac16d1dc1b
lib/promscrape: increase default value for promscrape.maxDroppedTargets to 10_000 (#6459)
### Describe Your Changes
This limit can be increased since after
4513893ead
tracking of dropped targets uses much less memory per entry.

See:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6381#issuecomment-2156708228

### 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>

(cherry picked from commit 34071ac660)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-06-13 09:28:16 +02:00
LHHDZ
41e4135371
app/vmauth: fix discovering backend IPs when url_prefix contains hostname with srv+ prefix (#6401)
This change fixes the following panic:
```
2024-06-04T11:16:52.899Z        warn    app/vmauth/auth_config.go:353   cannot discover backend SRV records for http://srv+localhost:8080: lookup localhost on 10.100.10.4:53: server misbehaving; use it literally
panic: runtime error: integer divide by zero

goroutine 9 [running]:
github.com/VictoriaMetrics/VictoriaMetrics/lib/httpserver.handlerWrapper.func1()
        /Users/lhhdz/wd/projects/go/VictoriaMetrics/lib/httpserver/httpserver.go:291 +0x58
panic({0x103115100?, 0x10338d700?})
        /Users/lhhdz/go/pkg/mod/golang.org/toolchain@v0.0.1-go1.22.3.darwin-arm64/src/runtime/panic.go:770 +0x124
main.getLeastLoadedBackendURL({0x0?, 0x22?, 0x1400014757b?}, 0x1400013c120?)
        /Users/lhhdz/wd/projects/go/VictoriaMetrics/app/vmauth/auth_config.go:473 +0x210
main.(*URLPrefix).getBackendURL(0x140000aa080)
        /Users/lhhdz/wd/projects/go/VictoriaMetrics/app/vmauth/auth_config.go:312 +0xb8
```

---------

Co-authored-by: Haley Wang <haley@victoriametrics.com>
2024-06-12 11:47:44 +02:00
Aliaksandr Valialkin
9135b404d9
lib/logstorage: work-in-progress 2024-06-11 17:51:01 +02:00
Aliaksandr Valialkin
9bd16790c0
lib/streamaggr: prevent from data race inside dedupAggrShard when samplesBuf can be updated in pushSamples() while their values are read in the flush() loop without das.mu lock
This issue has been introduced in the commit 253c0cffbe
2024-06-11 17:31:38 +02:00
Aliaksandr Valialkin
37a8cc0b12
lib/logstorage: work-in-progress 2024-06-10 18:42:31 +02:00
Aliaksandr Valialkin
7e24bf99de
lib/streamaggr: return back string interning to dedupAggr after 78953723200f15ffc417064d1912bdbb7551505c
It should reduce memory allocation rate during stream deduplication
2024-06-10 18:06:25 +02:00
Aliaksandr Valialkin
6470eac7dc
lib/bytesutil: reduce the number of memory allocations per each interned string in bytesutil.InternString() from 5 to 1
This should reduce GC overhead when tens of millions of strings are interned (for example, during stream deduplication
of millions of active time series).
2024-06-10 18:06:24 +02:00
Roman Khavronenko
8c8d84e30a
lib/protoparser/opentelemetry/firehose: escape requestID before returning it to user (#6451)
All user input should be sanitized before rendering. This should prevent
possible attacks. See
https://github.com/VictoriaMetrics/VictoriaMetrics/security/code-scanning/203

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-06-10 18:06:24 +02:00
Aliaksandr Valialkin
883c0e6221
lib/streamaggr: reduce memory allocations by using dedupAggrSample buffer per each dedupAggrShard 2024-06-10 16:39:26 +02:00
Aliaksandr Valialkin
422225bfa5
lib/streamaggr: reduce the number of duplicates per each sample in BenchmarkDedupAggr from 100 to 2
This is closer to typical production setups when deduplication is used for de-duplicating of 2 samples per series.
2024-06-10 16:39:26 +02:00
Aliaksandr Valialkin
d269a95da3
lib/streamaggr: use strings.Clone() instead of bytesutil.InternString() for creating series key in dedupAggr
Our internal testing shows that this reduces GC overhead when deduplicating tens of millions of active series.
2024-06-10 16:08:47 +02:00
Aliaksandr Valialkin
9ed9e766e8
lib/streamaggr: improve performance for dedupAggr.sizeBytes() and dedupAggr.itemsCount()
These functions are called every time `/metrics` page is scraped, so it would be great
if they could be sped up for the cases when dedupAggr tracks tens of millions of active time series.
2024-06-10 16:00:05 +02:00
Aliaksandr Valialkin
387c22da49
lib/streamaggr: remove flushState arg at dedupAggr.flush(), since it is always set to true in production 2024-06-10 16:00:05 +02:00
Hui Wang
028a80613f
lib/httpserver: allow reloadAuthKey and configAuthKey to override htt… (#6338)
…pAuth.*

address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6329,
makes `reloadAuthKey`, `configAuthKey`, `flagsAuthKey`, `pprofAuthKey`
behavior the same way,
but keys like `-snapshotAuthKey`, `-forceMergeAuthKey` are still
protected by httpAuth.*. All the available key are listed in
https://docs.victoriametrics.com/single-server-victoriametrics/#security.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit 61dce6f2a1)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-06-10 12:41:29 +02:00
Aliaksandr Valialkin
32aa0751a1
lib/streamaggr: follow-up for 7cb894a777
- Use bytesutil.InternString() instead of strings.Clone() for inputKey and outputKey in aggregatorpushSamples().
  This should reduce string allocation rate, since strings can be re-used between aggrState flushes.
- Reduce memory allocations at dedupAggrShard by storing dedupAggrSample by value in the active series map.
- Remove duplicate call to bytesutil.InternBytes() at Deduplicator, since it is already called inside dedupAggr.pushSamples().
- Add missing string interning at rateAggrState.pushSamples().

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6402
2024-06-07 16:35:53 +02:00
Roman Khavronenko
78121642df
lib/streamaggr: reduce number of inuse objects (#6402)
The main change is getting rid of interning of sample key. It was
discovered that for cases with many unique time series aggregated by
vmagent interned keys could grow up to hundreds of millions of objects.
This has negative impact on the following aspects:
1. It slows down garbage collection cycles, as GC has to scan all inuse
objects periodically. The higher is the number of inuse objects, the
longer it takes/the more CPU it takes.
2. It slows down the hot path of samples aggregation where each key
needs to be looked up in the map first.

The change makes code more fragile, but suppose to provide performance
optimization for heavy-loaded vmagents with stream aggregation enabled.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-06-07 16:35:52 +02:00
Roman Khavronenko
fae589bb83
lib/promrelabel: speedup label match by __name__ (#6432)
The change adds a fastpath for `equalValue` comparisons against
`__name__` label by avoiding calls to `toCanonicalLabelName` func. This
speedups matches by metric name like `'foo'`. See bench stats below:
```
benchcmp old.txt new.txt

benchmark                                           old ns/op     new ns/op     delta
BenchmarkIfExpression/equal_label:_last-10          35.6          35.1          -1.18%
BenchmarkIfExpression/equal_label:_middle-10        18.3          17.3          -5.41%
BenchmarkIfExpression/equal_label:_first-10         1.20          1.24          +2.74%
BenchmarkIfExpression/equal___name__:_last-10       10.1          4.96          -50.75%
BenchmarkIfExpression/equal___name__:_middle-10     5.79          3.16          -45.41%
BenchmarkIfExpression/equal___name__:_first-10      1.17          1.05          -9.76%
```

Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-06-07 16:35:52 +02:00
Andrii Chubatiuk
93cd08f15f
lib/streamaggr: metrics to track dropped, nan samples and samples lag (#6358)
### Describe Your Changes

Added streamaggr metrics to:
 - `vm_streamaggr_samples_lag_seconds` - samples lag
- `vm_streamaggr_ignored_samples_total{reason="nan"}` - ignored NaN
samples
- `vm_streamaggr_ignored_samples_total{reason="too_old"}` - ignored old
samples

(cherry picked from commit 185fac03b3)
2024-06-06 19:22:45 +02:00
Aliaksandr Valialkin
53382ae837
lib/logstorage: work-in-progress 2024-06-06 12:27:11 +02:00
Aliaksandr Valialkin
a200fb433a
lib/logstorage: allow using eval keyword instead of math keyword in math pipe 2024-06-05 10:08:08 +02:00
Aliaksandr Valialkin
b45e466a1b
lib/logstorage: work-in-progress 2024-06-05 03:18:25 +02:00
pludov
2efd97a63c
lib/fs: support NFS implementations that return EEXIST instead of ENOTEMPTY (#6398)
### Describe Your Changes

Fix for issue #6396: according to rmdir manpage, ENOTEMPTY and EEXIST
should be treated equally

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6396

### Checklist

The following checks are **mandatory**:

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

---------

Co-authored-by: Ludovic Pollet <ludovic.pollet@exfo.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 3ddae77c63)
2024-06-04 15:30:48 +02:00
Aliaksandr Valialkin
1ce8a9a751
lib/logstorage: allow typing asc in sort pipe for the sake of consistency with desc 2024-06-04 02:29:18 +02:00
Aliaksandr Valialkin
b7b3a9e9a3
lib/logstorage: work-in-progress 2024-06-04 01:50:55 +02:00
Aliaksandr Valialkin
540bbb63a2
lib/logstorage: work-in-progress 2024-05-30 16:19:36 +02:00
Roman Khavronenko
189af53142
lib/storage: filter deleted label names and values from `/api/v1/labe… (#6342)
…ls` and `/api/v1/label/.../values`

Check for deleted metrics when `match[]` filter matches small number of
time series (optimized path).

The issue was introduced
[v1.81.0](https://docs.victoriametrics.com/changelog_2022/#v1810).

Related issue
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6300 Updates
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2978

Signed-off-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit b984f4672e)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-05-29 14:37:00 +02:00
Aliaksandr Valialkin
e83fd4a117
lib/logstorage: work-in-progress 2024-05-29 01:52:34 +02:00
Aliaksandr Valialkin
79c03fc35f
lib/logstorage: work-in-progress 2024-05-28 19:29:50 +02:00
Aliaksandr Valialkin
ce5e4c842a
lib/logstorage: fix golangci-lint warnings 2024-05-26 02:02:41 +02:00
Aliaksandr Valialkin
afa597ce2a
lib/logstorage: work-in-progress 2024-05-26 01:56:12 +02:00
Aliaksandr Valialkin
6427b3c3c0
lib/logstorage: work-in-progress 2024-05-25 22:59:21 +02:00
Aliaksandr Valialkin
9edbeca46b
lib/logstorage: re-use per-shard fields across processed blocks in pipePackJSON and pipeUnroll 2024-05-25 22:13:44 +02:00
Aliaksandr Valialkin
03fe4c8963
lib/logstorage: work-in-progress 2024-05-25 21:36:24 +02:00
Aliaksandr Valialkin
3152df2bce
lib/logstorage: work-in-progress 2024-05-25 00:31:55 +02:00
Nikolay
5025ede7bc
lib/mergeset: adds tracking for indexdb records drop (#6297)
It allows to create alert for possible item drops at indexdb. It may
happen, if ingested metric size exceeds max indexdb item size.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit 69d244e6fb)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-05-24 16:08:34 +02:00
Aliaksandr Valialkin
7a2a2f173e
lib/logstorage: work-in-progress 2024-05-24 03:07:07 +02:00
Nikolay
dfbd2f8ff7
lib/storage: change default value for maxLabelValueLen to 1024 (#6313)
* It must reduce memory usage for misbehaving clients. Since
VictoriaMetrics stores sparse index inmemory.
* Reduce disk space usage for indexdb.
* Prevent possible indexDB items drops.
* It may trigger slow insert and new timeseries registration due to
default value for flag change

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6176

---------

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-05-22 21:55:21 +02:00
Alexander Marshalov
0b70c4c1f1
[vmlogs] fixed time parsing with millisecond precision time (#6293) (#6295)
fix for #6293

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-05-22 21:54:50 +02:00
Aliaksandr Valialkin
04d0dd2542
lib/logstorage: work-in-progress 2024-05-22 21:01:28 +02:00
Roman Khavronenko
f3e893f699
lib/backup: add -s3TLSInsecureSkipVerify command-line flag (#6318)
* The new flag can be used for for skipping TLS certificates
verification when connecting to S3 endpoint. Affects vmbackup,
vmrestore, vmbackupmanager.

* replace deprecated `EndpointResolver` with `BaseEndpoint`

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1056

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit ac836bcf6c)
2024-05-22 16:40:06 +02:00
Hui Wang
5b8c3fc9d0
app/vmalert: support DNS SRV record in -remoteWrite.url (#6299)
part of https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053,
supports [DNS SRV](https://en.wikipedia.org/wiki/SRV_record) address in
`-remoteWrite.url` command-line option.

(cherry picked from commit d7b5062917)
2024-05-22 10:53:22 +02:00
Roman Khavronenko
3e8b5e74d5
lib/streamaggr: skip empty aggregators (#6307)
Prevent excessive resource usage when stream aggregation config file
contains no matchers by prevent pushing data into Aggregators object.
Before this change a lot of extra work was invoked without reason.

Signed-off-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit 7ce052b32d)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-05-20 14:46:36 +02:00
Aliaksandr Valialkin
45fbcc74e0
lib/logstorage: fix golangci-lint warnings 2024-05-20 11:04:37 +02:00
Aliaksandr Valialkin
582e7d5439
lib/logstorage: work-in-progress 2024-05-20 04:09:15 +02:00
Andrii Chubatiuk
fe332c3419
app/vmagent: add global aggregator (#6268)
Add global stream aggregation for VMAgent

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5467
(cherry picked from commit f153f54d11)
2024-05-17 14:01:31 +02:00
Nikolay
ee4a94a371
follow-up for c6c5a5a186 (#6265)
* adds datadog extensions for statsd:
  - multiple packed values (v1.1)
  - additional types distribution, histogram

* adds type check and append metric type to the labels with special tag
name `__statsd_metric_type__`. It simplifies streaming aggregation
config.

* remove statsd support from cluster, since cluster doesn't support
stream aggregation.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit b2765c45d0)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-05-17 13:49:24 +02:00
Aliaksandr Valialkin
28626db066
lib/logstorage: work-in-progress
(cherry picked from commit 0aa19a2837)
2024-05-16 09:35:55 +02:00
Aliaksandr Valialkin
5dbc4ad5ef
lib/streamaggr: properly return output key from getOutputKey
The bug has been introduced in cc2647d212

(cherry picked from commit b617dc9c0b)
2024-05-16 09:35:53 +02:00
Aliaksandr Valialkin
b1ee7bca1a
lib/logstorage: work-in-progress 2024-05-14 03:06:02 +02:00
Aliaksandr Valialkin
f52275bbd7
lib/logstorage: work-in-progress
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6258
2024-05-14 01:49:58 +02:00
Aliaksandr Valialkin
207b4bd91d
lib/storage: fix SearchQuery.Unmarshal() after 32193b6059 2024-05-14 01:39:01 +02:00
Aliaksandr Valialkin
32193b6059
lib/encoding: optimize UnmarshalVarUint64, UnmarshalVarInt64 and UnmarshalBytes a bit
Change the return values for these functions - now they return the unmarshaled result plus
the size of the unmarshaled result in bytes, so the caller could re-slice the src for further unmarshaling.

This improves performance of these functions in hot loops of VictoriaLogs a bit.
2024-05-14 01:30:25 +02:00
Aliaksandr Valialkin
2e12119a9e
lib/stringsutil: add LessNatural() function for natural sorting
Natural sorting is needed for sort_by_label_natural() and sort_by_label_natural_desc()
functions in MetricsQL - see https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6192
and https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6256

Natural sorting will be also used by `| sort ...` pipe in VictoriaLogs -
see https://docs.victoriametrics.com/victorialogs/logsql/#sort-pipe

(cherry picked from commit 707f3a69db)
2024-05-13 17:08:56 +02:00
Hui Wang
ec56f4625e
storage: correctly apply -inmemoryDataFlushInterval when it's set t… (#6221)
…o minimum supported value 1s
pendingRowsFlushInterval was bumped to 2s in
73f0a805e2

(cherry picked from commit 4c80b17027)
2024-05-13 16:50:02 +02:00
Andrii Chubatiuk
b9eb527d98
lib/streamaggr: added rate_sum and rate_avg to benchmarks, lint fix (#6264)
fixed lint for rate outputs

(cherry picked from commit ce25d68b45)
2024-05-13 16:49:59 +02:00
Andrii Chubatiuk
d9cddf1ad8
lib/streamaggr: added rate and rate_avg output (#6243)
Added `rate` and `rate_avg` output
Resource usage is the same as for increase output, tested on a benchmark

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 9c3d44c8c9)
2024-05-13 16:49:39 +02:00
hagen1778
84a896cd6e
lib/logstorage: make linter happy
Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 17283fab6c)
2024-05-13 16:49:37 +02:00
Aliaksandr Valialkin
147704aab0
lib/logstorage: initial implementation of pipes in LogsQL
See https://docs.victoriametrics.com/victorialogs/logsql/#pipes
2024-05-12 16:36:01 +02:00
Aliaksandr Valialkin
9dc9c892b7
lib/encoding: optimizing UnmarshalVarUint64 and UnmarshalVarInt64 a bit 2024-05-12 16:35:24 +02:00
Aliaksandr Valialkin
87338633b1
lib/slicesutil: add helper functions for setting slice length and extending its capacity
The added helper functions - SetLength() and ExtendCapacity() - replace error-prone code with simple function calls.
2024-05-12 11:33:49 +02:00
Aliaksandr Valialkin
9607902289
lib/storage: remove outdated misleading comments 2024-05-12 10:25:06 +02:00
Roman Khavronenko
0bed453737
Feature allow configuring disableOnDiskQueue and dropSamplesOnOverload per url (#6248)
* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html):
allow configuring `-remoteWrite.disableOnDiskQueue` and
`-remoteWrite.dropSamplesOnOverload` cmd-line flags per each
`-remoteWrite.url`. See this [pull
request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6065).
Thanks to @rbizos for implementaion!
* FEATURE: [vmagent](https://docs.victoriametrics.com/vmagent.html): add
labels `path` and `url` to metrics
`vmagent_remotewrite_push_failures_total` and
`vmagent_remotewrite_samples_dropped_total`. Now number of failed pushes
and dropped samples can be tracked per `-remoteWrite.url`.

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Raphael Bizos <r.bizos@criteo.com>
(cherry picked from commit 87fd400dfc)
2024-05-10 14:32:23 +02:00
Roman Khavronenko
7be6fcd8fd
lib/streamaggr: set correct suffix <output>_prometheus (#6228)
Set correct suffix `<output>_prometheus` for aggregation outputs
`increase_prometheus` and `total_prometheus`
Before, outputs `total` and `total_prometheus` or `increase` and
`increase_prometheus` had the same suffix.

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 8a03e987cb)
2024-05-10 14:29:01 +02:00
Andrii Chubatiuk
f3d65ba902
streamaggr: made labels compressor shared (#6173)
Though labels compressor is quite resource intensive, each aggregator
and deduplicator instance has it's own compressor. Made it shared across
all aggregators to consume less resources while using multiple
aggregators.

Co-authored-by: Roman Khavronenko <hagen1778@gmail.com>
(cherry picked from commit a9283e06a3)
2024-05-10 14:28:59 +02:00
Zhu Jiekun
10063e98a6
feature: [vmagent] Add service discovery support for Vultr (#6068)
### Describe Your Changes
related issue:
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6041

#### Added
- Added service discovery support for Vultr.

#### Docs
- `CHANGELOG.md`, `sd_configs.md`, `vmagent.md` are updated.

#### Note
- Useful links:
- Vultr API:
https://www.vultr.com/api/#tag/instances/operation/list-instances
    - Vultr client SDK: https://github.com/vultr/govultr
- Prometheus SD:
https://github.com/prometheus/prometheus/tree/main/discovery/vultr

---
### Checklist

The following checks are mandatory:

- [X] I have read the [Contributing
Guidelines](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/CONTRIBUTING.md)
- [x] All commits are signed and include `Signed-off-by` line. Use `git
commit -s` to include `Signed-off-by` your commits. See this
[doc](https://git-scm.com/book/en/v2/Git-Tools-Signing-Your-Work) about
how to sign your commits.
- [x] Tests are passing locally. Use `make test` to run all tests
locally.
- [x] Linting is passing locally. Use `make check-all` to run all
linters locally.

Further checks are optional for External Contributions:

- [X] Include a link to the GitHub issue in the commit message, if issue
exists.
- [x] Mention the change in the
[Changelog](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/docs/CHANGELOG.md).
Explain what has changed and why. If there is a related issue or
documentation change - link them as well.

  Tips for writing a good changelog message::

* Write a human-readable changelog message that describes the problem
and solution.
* Include a link to the issue or pull request in your changelog message.
* Use specific language identifying the fix, such as an error message,
metric name, or flag name.
* Provide a link to the relevant documentation for any new features you
add or modify.

- [ ] After your pull request is merged, please add a message to the
issue with instructions for how to test the fix or try the feature you
added. Here is an
[example](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4048#issuecomment-1546453726)
- [x] Do not close the original issue before the change is released.
Please note, in some cases Github can automatically close the issue once
PR is merged. Re-open the issue in such case.
- [x] If the change somehow affects public interfaces (a new flag was
added or updated, or some behavior has changed) - add the corresponding
change to documentation.

Signed-off-by: Jiekun <jiekun.dev@gmail.com>
(cherry picked from commit 17e3d019d2)
2024-05-10 14:28:51 +02:00
hagen1778
864fbf9125
Statsd protocol compatibility (#5053)
In this PR I added compatibility with [statsd
protocol](https://github.com/b/statsd_spec) with tags to be able to send
metrics directly from statsd clients to vmagent or directly to VM.
For example its compatible with
[statsd-instrument](https://github.com/Shopify/statsd-instrument) and
[dogstatsd-ruby](https://github.com/DataDog/dogstatsd-ruby) gems

Related issues: #5052, #206, #4600

(cherry picked from commit c6c5a5a186)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-05-10 14:28:37 +02:00
Ted Possible
0206a01d03
Exemplar support (#5982)
This code adds Exemplars to VMagent and the promscrape parser adhering
to OpenMetrics Specifications. This will allow forwarding of exemplars
to Prometheus and other third party apps that support OpenMetrics specs.

---------

Signed-off-by: Ted Possible <ted_possible@cable.comcast.com>
(cherry picked from commit 5a3abfa041)
2024-05-10 13:14:17 +02:00
Zakhar Bessarab
f6eb8912b0
lib/mergeset: improve test coverage (#6118)
Add test to cover the code path with overflowing shards buffers and
triggering merge to partition.

This test covers the code path which leaded to
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
(cherry picked from commit 329c3cbdf0)
2024-04-30 10:30:12 +02:00
hagen1778
59b3f21708
Revert "app/vmbackup: introduce new flag type URL (#6152)"
This reverts commit 029060af60.

(cherry picked from commit 679844feaf)
2024-04-24 17:08:26 +02:00
Roman Khavronenko
ff73b66182
app/vmbackup: introduce new flag type URL (#6152)
The new flag type is supposed to be used for specifying URL values which
could contain sensitive information such as auth tokens in GET params or
HTTP basic authentication.

The URL flag also allows loading its value from files if `file://`
prefix is specified. As example, the new flag type was used in
app/vmbackup as it requires specifying `authKey` param for making the
snapshot.

See related issue
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5973

Thanks to @wasim-nihal for initial implementation
https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6060

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 029060af60)
2024-04-24 17:08:24 +02:00
hagen1778
342290275e
app/streamaggr: follow-up after c0e4ccb7b5
* rm vmagent mentions from vminsert flags
* improve documentation wording, add links to related sections
* mention `ignore_first_intervals` in the stream aggr options
* update flags description
* add basic test for config parsing validation

Signed-off-by: hagen1778 <roman@victoriametrics.com>

(cherry picked from commit bae3874e6a)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-04-22 14:39:23 +02:00
Andrii Chubatiuk
131367fb59
lib/streamaggr: add option to ignore first N aggregation intervals (#6137)
Stream aggregation may yield inaccurate results if it processes incomplete data.
This issue can arise when data is sourced from clients that maintain a queue of unsent data, such as Prometheus or vmagent.
 If the queue isn't fully cleared within the aggregation interval, only a portion of the time series may be included in that period, leading to distorted calculations.
To mitigate this we add an option to ignore first N aggregation intervals. It is expected, that client queues
will be cleared during the time while aggregation ignores first N intervals and all subsequent aggregations
will be correct.

(cherry picked from commit c0e4ccb7b5)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-04-22 14:34:36 +02:00
Aliaksandr Valialkin
4318f34644
lib/protoparser: substitute hybrid channel-based pools with plain sync.Pool
Using plain sync.Pool simplifies the code without increasing memory usage and CPU usage.
So it is better to use plain sync.Pool from readability and maintainability PoV.

This is a follow-up for 8942f290eb
2024-04-20 22:02:39 +02:00
Aliaksandr Valialkin
9004bc098e
all: use clear() built-in Go function for clearing []prompbmarshal.TimeSeries and []prompbmarshal.Label slices
This makes the code a bit clear.
2024-04-20 21:00:24 +02:00
Aliaksandr Valialkin
e138f4827e
lib/storage: search for all the values for the given label before applying filters and limits
It is incorrect applying the limit on the number of values to search without applying filters,
since the returned subset of label values may miss the label values matching the given filters.

This is a follow-up for 66630c7960
2024-04-18 20:40:19 +02:00
Aliaksandr Valialkin
0c87cbe338
all: replace old https://docs.victoriametrics.com/relabeling.html url with the new one - https://docs.victoriametrics.com/relabeling/ 2024-04-18 03:23:15 +02:00
Aliaksandr Valialkin
b933001d2d
all: replace old https://docs.victoriametrics.com/Single-server-VictoriaMetrics.html url with the new one - https://docs.victoriametrics.com/single-server-victoriametrics/ 2024-04-18 03:11:49 +02:00
Aliaksandr Valialkin
a21d1fcf57
all: replace old https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html url with the new one - https://docs.victoriametrics.com/cluster-victoriametrics/ 2024-04-18 02:56:28 +02:00
Aliaksandr Valialkin
513e69c55e
all: replace old https://docs.victoriametrics.com/sd_configs.html url with the new one - https://docs.victoriametrics.com/sd_configs/ 2024-04-18 02:28:26 +02:00
Aliaksandr Valialkin
728bcf0585
all: replace old https://docs.victoriametrics.com/stream-aggregation.html url with the new one - https://docs.victoriametrics.com/stream-aggregation/ 2024-04-18 02:20:00 +02:00
Aliaksandr Valialkin
6fe21520ce
all: replace old https://docs.victoriametrics.com/vmbackup.html url with the new one - https://docs.victoriametrics.com/vmbackup/ 2024-04-18 01:58:00 +02:00
Aliaksandr Valialkin
0211a04a52
all: replace the outdated url https://docs.victoriametrics.com/vmagent.html with the new one - https://docs.victoriametrics.com/vmagent/ 2024-04-18 01:32:57 +02:00
Aliaksandr Valialkin
e615bcced7
lib/storage: improve performance for /api/v1/label/labelName/values when match[] contains only a single filter on labelName
This speeds up auto-suggestion for metric names in VMUI and Grafana, which use the following query in this case:

  /api/v1/label/__name__/values?match[]={__name__=~"*.some_value.*"}

When the user types `some_value` in the query input field.
2024-04-18 01:18:03 +02:00
Aliaksandr Valialkin
164032cd9b
lib/httpserver: add support for automatic issuing of TLS certificates via Lets Encrypt service
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5949
2024-04-17 23:53:51 +02:00
Aliaksandr Valialkin
30c96ba8d7
app/{vminsert,vmselect}: support for srv+addr scheme for specifying DNS SRV addresses at -storageNode flag
The new scheme is consistent with SRV urls introduced at b426d10847 and dc326f70b4

Deprecte the old scheme: `dns+srv:addr` by removing it from the docs.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053
2024-04-17 23:15:05 +02:00
Aliaksandr Valialkin
2177675b34
lib/netutil: move creation of GetCertificate callback into a separate function
This improves code readability a bit
2024-04-17 22:11:10 +02:00
Aliaksandr Valialkin
284d99e269
app/vmagent: support for DNS SRV urls at -remoteWrite.url, scrape target urls and service discovery urls
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053
2024-04-17 20:56:23 +02:00
Aliaksandr Valialkin
e627810146
app/vmauth: add support for configuring backends via DNS SRV urls 2024-04-17 20:56:21 +02:00
Aliaksandr Valialkin
a9ec77fee5
lib/promscrape/discovery/consul: typo fix in the comment: enteprise -> enterprise 2024-04-17 12:08:01 +02:00
Aliaksandr Valialkin
5320cc3198
lib/{mergeset,storage}: log deleting directories inside partitions if they are missing in parts.json
This should improve debuggability of unexpected deletion of directories inside partitions.

While at it, log the proper path to parts.json when the directory for big part is missing in the partition.
parts.json is located inside directory with small parts, and there is no parts.json file inside directory with big parts.
2024-04-17 12:00:10 +02:00
Aliaksandr Valialkin
9b2a5c8844
lib/storage: improve comments inside functions responsible for creating indexes for newly registered time series 2024-04-17 11:30:51 +02:00
Zakhar Bessarab
da8bb106aa
lib/mergeset: fix flushing incorrect set of inmemoryBlocks (#6089)
Follow-up for bace9a2501

Related:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6069
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-04-11 09:26:48 +02:00
wanshuangcheng
52a4ae0b28
chore: fix function names in comment (#6076)
Signed-off-by: wanshuangcheng <wanshuangcheng@outlook.com>
2024-04-08 15:38:51 +02:00
Aliaksandr Valialkin
222e8b5a7b
lib/streamaggr: update the minimum allowed timestamp for incoming samples before flushing the samples to the storage
This should prevent from dropping samples with old timestamps during long flushes.

This is a follow-up for 1cedaf61cb
2024-04-04 02:26:08 +03:00
Aliaksandr Valialkin
ecd782c75e
app/vmagent: follow-up for b3b29ba6ac
- Automatically reload changed TLS root CA pointed by -remoteWrite.tlsCAFile command-line flag
- Automatically reload changed TLS root CA configured via oauth2.tsl_config.ca_file option at -promscrape.config
- Document the change as a feature instead of a bug at docs/CHANGELOG.md
- Simplify the code at lib/promauth, which is responsible for reloading changed TLS root CA files.
- Simplify the usage of lib/promauth.Config.NewRoundTripper() - now it accepts the base http.Transport
  instead of a callback, which can change the internal http.Transport.
- Reuse the default tls config if lib/promauth.Config doesn't contain tls-specific configs.
  This should reduce memory usage a bit when tls isn't used for scraping big number of targets.
- Do not re-read TLS root CA files on every processed request. Re-read them once per second.
  This should reduce CPU usage when scraping big number of targets over https.
- Do not store cert.pem and key.pem files in TestTLSConfigWithCertificatesFilesUpdate, since they can be loaded
  from byte slices via crypto/tls.X509KeyPair().
- Remove obsolete comparisons of string representations for authConfig and proxyAuthConfig at areEqualScrapeConfigs().

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5725
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5526
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2171
2024-04-04 01:26:38 +03:00
Zakhar Bessarab
80315e07b1
lib/promscrape/config: fix missing timeout for http client (#6063)
Follow-up for b3b29ba6

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
2024-04-04 00:40:48 +03:00
Zakhar Bessarab
da4352fe7b
lib/{promauth,promscrape}: automatically refresh root CA certificates after changes on disk (#5725)
* lib/{promauth,promscrape}: automatically refresh root CA certificates after changes on disk

Added a custom `http.RoundTripper` implementation which checks for root CA content changes and updates `tls.Config` used by `http.RoundTripper` after detecting CA change.

Client certificate changes are not tracked by this implementation since `tls.Config` already supports passing certificate dynamically by overriding `tls.Config.GetClientCertificate`.

This change implements dynamic reload of root CA only for streaming client used for scraping. Blocking client (`fasthttp.HostClient`) does not support using custom transport so can't use this implementation.

See: https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5526

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promauth/config: update NewRoundTripper API

Update API to allow user to update only parameters required for transport.

Add warning log when reloading Root CA failed.

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promauth/config: fix mutex acquire logic

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promauth/config: replace RWMutex with regular mutex to simplify the code

- remove additional mutex used for getRootCABytes - require callee to use mutex
- replace RWMutex with regular mutex

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/promauth/config: refactor

- hold the mutex lock to avoid round tripper being re-created twice
- move recreation logic into separate func to simplify the code

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2024-04-04 00:34:43 +03:00
Aliaksandr Valialkin
bb9bb600b3
lib/protoparser/opentelemetry: follow-up after 47892b4a4c
- Rename -opentelemetry.sanitizeMetrics command-line flag to more clear -opentelemetry.usePrometheusNaming
- Clarify the description of the change at docs/CHANGELOG.md
- Rename promrelabel.SanitizeLabelNameParts to more clear promrelabel.SplitMetricNameToTokens
- Properly split metric names at '_' char in promerlabel.SplitMetricNameToTokens.
- Add tests for various edge cases for Prometheus metric names' normalization
  according to the code at b865505850/pkg/translator/prometheus/normalize_name.go
- Extract the code responsible for Prometheus metric names' normalization into a separate file (santize.go)

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6037
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6035
2024-04-03 03:09:52 +03:00
Aliaksandr Valialkin
00f59d6ddf
all: fix golangci-lint(revive) warnings after 0c0ed61ce7
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6001
2024-04-03 03:00:45 +03:00
Aliaksandr Valialkin
1ffad3a182
lib/storage: consistently use stopCh instead of stop 2024-04-03 02:54:51 +03:00
Aliaksandr Valialkin
faa2ba828a
app/vmagent: simplify code after 509df44d03
- Simplify the code in order to improve its maintenance
- Properly pass tenant ID when processing multi-tenant opentelemetry request at vmagent

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/6016
2024-04-03 02:50:46 +03:00
Aliaksandr Valialkin
e51190a34c
Revert "app/vmselect: make vmselect resilient to absence of cache folder (#5987)"
This reverts commit cb23685681.

Reason for revert: the "fix" may hide programming bugs related to incorrect creation of folders
before their use. This may complicate detecting and fixing such bugs in the future.

There are the following fixes for the issue https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5985 :
- To configure the OS to do not drop data from the system-wide temporary directory (aka /tmp).
- To run VictoriaMetrics with -cacheDataPath command-line flag, which points to the directory,
  which cannot be removed automatically by the OS.

The case when the user accidentally deletes the directory with some files created by VictoriaMetrics
shouldn't be considered as expected, so VictoriaMetrics shouldn't try resolving this case automatically.
It is much better from operation and debuggability PoV is to crash with the clear `directory doesn't exist` error
in this case.
2024-04-03 02:44:00 +03:00
Aliaksandr Valialkin
7edb5f77f1
app/vmagent: properly shutdown when -maxIngestionRate limit is reached
The remotewrite.Stop() expects that there are no pending calls to TryPush().
This means that the ingestionRateLimiter.Register() must be unblocked inside TryPush() when calling remotewrite.Stop().
Provide remotewrite.StopIngestionRateLimiter() function for unblocking the rate limiter before calling the remotewrite.Stop().

While at it, move the rate limiter into lib/ratelimiter package, since it has two users.
Also move the description of the feature to the correct place at docs/CHANGELOG.md.
Also cross-reference -remoteWrite.rateLimit and -maxIngestionRate command-line flags.

This is a follow-up for 02bccd1eb9
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5900
2024-04-03 02:41:11 +03:00
Zakhar Bessarab
3d15a31c6d
lib/storage: add ability to use downsampling for the given series filter (#733)
* lib/storage: add ability to use downsampling for the given series filter

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* docs: add information about downsampling filters

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* docs: fix MetricsQL filter

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/storage/downsampling: treat missing downsampling filter as a bug

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/storage/part_header: verify correctness of downsampling filters when opening partition

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/storage/downsampling: save only appliable rules in part metadata

Filter and save only rules which are appliable to partition based on MinTimestamp of stored data.

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/storage/downsampling: update log messages for final dedup

Properly specify a reason of re-running deduplication for partition.

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* lib/storage: consistently use MaxTimestamp to determine deduplication/downsampling rules

Using MinTimestamp leads to applying downsampling to parts which are only partially covered by downsampling rule.
For example, partition covers range [1000-2000]. At t=2100 and rule offset 500 data with t=2100-500 => 1600 must be downsampled. The range check against MinTimestamp evaluates to true even though partition contains range which must not be downsampled - [1600:2000].

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* Follow-up

- Apply the first matching downsampling period if multiple filters match the given time series.
  This allows fine-tuning the downsampling config for the specific needs.
- Take into account downsampling filters during search queries.
- Reduce the difference between community and enterprise branches. This should simplify further maintenance of these branches.
- Properly parse series filters with colons inside them.
- Document the feature at docs/CHANGELOG.md.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4960

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-04-03 02:38:37 +03:00
Aliaksandr Valialkin
ae6190f0b5
lib/storage/table.go: reduce the difference with enterprise branch 2024-04-03 02:37:05 +03:00
Aliaksandr Valialkin
b6d1d6982e
lib/storage/partition.go: reduce code difference a bit with enterprise branch 2024-04-03 02:36:49 +03:00
Nikolay
c457f7de69
lib/storage: adds metrics for downsampling (#382)
* lib/storage: adds metrics for downsampling
vm_downsampling_partitions_scheduled - shows the number of parts, that must be downsampled
vm_downsampling_partitions_scheduled_size_bytes - shows total size in bytes for parts, the must be donwsampled

These two metrics answer the questions - is downsampling running? how many parts scheduled for downsampling and how many of them currently downsampled? Storage space that it occupies.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2612

* wip

Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
2024-04-03 02:36:05 +03:00
Andrii Chubatiuk
0799834aaa
opentelemetry: added cmd flag to sanitize metric names (#6035) 2024-04-03 02:31:39 +03:00
Aliaksandr Valialkin
b8d37ad747
lib/storage: follow-up for 76f00cea6b
Store the deadline when the metricID entries must be deleted from indexdb
if metricID->metricName entry isn't found after the deadline. This should
make the code more clear comparing the the previous version, where the timestamp
of the first metricID->metricName lookup miss was stored in missingMetricIDs.

Remove the misleading comment about the importance of the order for creating entries
in the inverted index when registering new time series. The order doesn't matter,
since any subset of the created entries can become visible for search
before any other subset after registering in indexdb.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5948
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959
2024-04-02 23:46:21 +03:00
Zakhar Bessarab
7c1ee69205
lib/storage/table: wait for merges to be completed when closing a table (#5965)
* lib/storage/table: properly wait for force merges to be completed during shutdown

Properly keep track of running background merges and wait for merges completion when closing the table.
Previously, force merge was not in sync with overall storage shutdown which could lead to holding ptw ref.

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

* docs: add changelog entry

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>

---------

Signed-off-by: Zakhar Bessarab <z.bessarab@victoriametrics.com>
2024-04-02 21:25:30 +03:00
Andrii Chubatiuk
914b23f1e8
app/{vmagent,vminsert}: fixed firehose response (#6016) 2024-04-02 18:03:12 +03:00
Roman Khavronenko
548bf31dd2
app/vmselect: make vmselect resilient to absence of cache folder (#5987)
vmselect uses a cache folder in file system for two purposes:
1. Storing rollup cache results on shutdown;
2. Storing temporary search results from vmstorage during query executions.

It could happen that cache folder is deleted accidentally by user, or by OS
during cleanup routines. This would cause vmselect to:
1. panic on /metrics call, because `MustGetFreeSpace` will fail;
2. return query error user, as it won't be able to store temporary search results.

The changes in this commit are the following:
1. Make `MustGetFreeSpace` to try re-creating the cache folder if it is missing;
2. Make vmselect to try re-creating the cache folder if it can't persist tmp search
results.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5985

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
(cherry picked from commit cb23685681)
2024-03-26 15:27:32 +01:00
hagen1778
c0659800d5
lib/promauth: follow-up b577413d3b
Convert test result expectations to canonical form.
Starting from b577413d3b specified header keys are forced
into canonical form https://pkg.go.dev/net/http#CanonicalHeaderKey

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit e6dd52b04c)
2024-03-25 15:42:22 +01:00
Aliaksandr Valialkin
cd222d6502
lib/streamaggr: ignore out of order samples for last output
This is a follow-up for 6a465f6e29

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5931
2024-03-18 01:03:58 +02:00
Aliaksandr Valialkin
eecc5e8463
lib/storage: wait for up to 60 seconds before deciding to delete metricID entries from indexdb if metricID->metricName entry is missing during search
The metricID->metricName entry can remain invisible for search for some time after registering new metricName.
This is expected condition. So wait for up to 60 seconds in the hope that the metricID->metricName
entry will become visible before deleting all the entries from indexdb, which are associated with the given metricID.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5959
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5948

See also 20812008a7
2024-03-18 00:37:11 +02:00