Commit graph

16 commits

Author SHA1 Message Date
Hui Wang
04c07c085a
vmalert: revert the default value of -remoteWrite.maxQueueSize from… (#7570)
… `1_000_000` to `100_000`

It was bumped in
[v1.104.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.104.0),
which increases memory usage and is not needed for most setups. See
[this
issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/7471).
2024-11-20 16:32:46 +01:00
Roman Khavronenko
fdb898f249
app/vmalert: update -remoteWrite.concurrency and -remoteWrite.flushInterval (#7272)
Auto-adjust `-remoteWrite.concurrency` cmd-line flags with the number of
available CPU cores in the same way as vmagent does. With this change
the default behavior of vmalert in high-loaded installation should
become more resilient. This change also reduces
`-remoteWrite.flushInterval` from `5s` to `2s` to provide better data
freshness.


---------
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Nikolay <nik@victoriametrics.com>
2024-10-22 17:28:51 +02:00
Artem Fetishev
be7dfd5ab3
app/(vmagent,vmalert)/remotewrite/client: Fix flag docs (#7198)
### Describe Your Changes

The flags docs mention the flag that does not exist (and never existed).
Perhaps that was a typo.

`s/retryMaxInterval/retryMaxTime/g`

### Checklist

The following checks are **mandatory**:

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

Signed-off-by: Artem Fetishev <rtm@victoriametrics.com>
(cherry picked from commit e2c73dc89f)
2024-10-11 14:25:15 +02:00
hagen1778
d98577ae37
app/vmalert: follow-up bc37b279aa
* rm extra interface method for rw Client, as it has low applicability
and doesn't fit multitenancy well
* add `GetDroppedRows` method instead

Signed-off-by: hagen1778 <roman@victoriametrics.com>
(cherry picked from commit 4ef76eed7b)
2024-06-20 15:15:58 +02:00
Hui Wang
a393b993d6
vmalert: exit replay mode with non-zero code if generated samples are… (#6513)
… not successfully written into remoteWrite url

address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6512

(cherry picked from commit bc37b279aa)
2024-06-20 14:00:19 +02:00
Nikolay
908a50f79d
app/vmalert: adds idleConnTimeout flags and retry trivial network errors (#6382)
* "*.idleConnTimeout" flags must reduce probability of `write: broken
pipe` and `read: connection reset by peer` errors Those errors may occur
if remote server closes TCP socket for connection, while it's still
exist at client.
* single time retries for `write: broken pipe` and `read: connection
reset by peer` must handle a case for incorrectly configured timeouts at
middleware proxies, mitigate minor network issues.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5661

### 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.

---------

Co-authored-by: Roman Khavronenko <roman@victoriametrics.com>
(cherry picked from commit b97916276f)
2024-06-03 11:52:58 +02:00
Jiekun
1e0a079143
app/vmalert: respect batch size limit for remote write on shutdown (#6039)
During shutdown period of vmalert, remotewrite client retrieve all pending time series from buffer queue, compose them into 1 batch and execute remote write.

This final batch may exceed the limit of -remoteWrite.maxBatchSize, and be rejected by the receiver (gateway, vmcluster or others).

This changes ensures that even during shutdown vmalert won't exceed the max batch size limit for remote write
destination.

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6025

(cherry picked from commit 623d257faf)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2024-03-29 14:30:24 +01:00
Aliaksandr Valialkin
9d5a385973
app/{vmalert,vmctl}: consistently use http.NewRequestWithContext() instead of http.NewRequest() + req.WithContext() 2024-02-29 15:25:36 +02:00
Aliaksandr Valialkin
d566aa7d78
lib/prompbmarshal: switch to github.com/VictoriaMetrics/easyproto 2024-01-16 20:48:30 +02:00
Aliaksandr Valialkin
063ea8c773
app/vmalert/remotewrite: properly calculate vmalert_remotewrite_dropped_rows_total
It was calculating the number of dropped time series instead of the number of dropped samples.

While at it, drop vmalert_remotewrite_dropped_bytes_total metric, since it was inconsistently calculated -
at one place it was calculating raw protobuf-encoded sample sizes, while at another place it was calculating
the size of snappy-compressed prompbmarshal.WriteRequest protobuf message.
Additionally, this metric has zero practical sense, so just drop it in order to reduce the level of confusion.
2024-01-16 20:47:13 +02:00
Roman Khavronenko
becf7bf8df
app/vmalert: update remote-write process (#5284)
* app/vmalert: update remote-write process

* automatically retry remote-write requests on closed connections. The change should reduce the amount of logs produced in environments with short-living connections or environments without support of keep-alive on network balancers.
* increment `vmalert_remotewrite_errors_total` metric if all retries to send remote-write request failed. Before, this metric was incremented only if remote-write client's buffer is overloaded.
* increment `vmalert_remotewrite_dropped_rows_total` amd `vmalert_remotewrite_dropped_bytes_total` metrics if remote-write client's buffer is overloaded. Before, these metrics were incremented only after unsuccessful HTTP calls.

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

* Update docs/CHANGELOG.md

---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: Hui Wang <haley@victoriametrics.com>
2023-11-13 09:25:29 +01:00
Aliaksandr Valialkin
f03e81c693
lib/promauth: follow-up for e16d3f5639
- Make sure that invalid/missing TLS CA file or TLS client certificate files at vmagent startup
  don't prevent from processing the corresponding scrape targets after the file becomes correct,
  without the need to restart vmagent.
  Previously scrape targets with invalid TLS CA file or TLS client certificate files
  were permanently dropped after the first attempt to initialize them, and they didn't
  appear until the next vmagent reload or the next change in other places of the loaded scrape configs.

- Make sure that TLS CA is properly re-loaded from file after it changes without the need to restart vmagent.
  Previously the old TLS CA was used until vmagent restart.

- Properly handle errors during http request creation for the second attempt to send data to remote system
  at vmagent and vmalert. Previously failed request creation could result in nil pointer dereferencing,
  since the returned request is nil on error.

- Add more context to the logged error during AWS sigv4 request signing before sending the data to -remoteWrite.url at vmagent.
  Previously it could miss details on the source of the request.

- Do not create a new HTTP client per second when generating OAuth2 token needed to put in Authorization header
  of every http request issued by vmagent during service discovery or target scraping.
  Re-use the HTTP client instead until the corresponding scrape config changes.

- Cache error at lib/promauth.Config.GetAuthHeader() in the same way as the auth header is cached,
  e.g. the error is cached for a second now. This should reduce load on CPU and OAuth2 server
  when auth header cannot be obtained because of temporary error.

- Share tls.Config.GetClientCertificate function among multiple scrape targets with the same tls_config.
  Cache the loaded certificate and the error for one second. This should significantly reduce CPU load
  when scraping big number of targets with the same tls_config.

- Allow loading TLS certificates from HTTP and HTTPs urls by specifying these urls at `tls_config->cert_file` and `tls_config->key_file`.

- Improve test coverage at lib/promauth

- Skip unreachable or invalid files specified at `scrape_config_files` during vmagent startup, since these files may become valid later.
  Previously vmagent was exitting in this case.

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4959
2023-10-26 09:55:47 +02:00
Hui Wang
d7dd7614eb
fix inconsistent behaviors with prometheus when scraping (#5153)
* fix inconsistent behaviors with prometheus when scraping

1. address https://github.com/VictoriaMetrics/VictoriaMetrics/issues/4959. skip job with wrong syntax in `scrape_configs` with error logs instead of exiting;
2. show error messages on vmagent /targets ui if there are wrong auth configs in `scrape_configs`, previously will print error logs and do scrape without auth header;
3. don't send requests if there are wrong auth configs in:
    1. vmagent remoteWrite;
    2. vmalert datasource/remoteRead/remoteWrite/notifier.

* add changelogs

* address review comments

* fix ut
2023-10-26 08:56:54 +02:00
Haleygo
130e0ea5f0
vmalert-tool: implement unittest (#4789)
1. split package rule under /app/vmalert, expose needed objects
2. add vmalert-tool with unittest subcmd

https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2945
2023-10-16 14:12:06 +02:00
Roman Khavronenko
303d3616ec
vmalert: revert unittest feature (#4734)
* Revert "vmalert: unittest support stale datapoint (#4696)"

This reverts commit 0b44df7ec8.

* Revert "docs: specify min version and limitations for vmalert's unit tests"

This reverts commit a24541bd

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

* Revert "vmalert: init unit test (#4596)"

This reverts commit da60a68d

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

* docs: mention unittest revert in changelog

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

---------

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

(cherry picked from commit 9f1b9b86cc)
Signed-off-by: hagen1778 <roman@victoriametrics.com>
2023-07-28 11:09:52 +02:00
Haleygo
939c8b8372
vmalert: init unit test (#4596)
vmalert: support unit tests

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2945
---------

Signed-off-by: hagen1778 <roman@victoriametrics.com>
Co-authored-by: hagen1778 <roman@victoriametrics.com>
2023-07-20 21:19:45 -07:00