Unexpectedly, Grafana makes an extra request to `/rules`
handler in addition to `/api/v1/rules` calls in alerts UI.
This happens only for Grafana versions older than 8.5.*.
Apparently, this is related to support of other monitoring
systems.
Prometheus responds with `text/html` content for UI page `/rules`
to such requests. Actually, returning just a blank page with
SC=200 works as well.
Returning actual response of `/api/v1/rules`
results in error in Grafana since it expects a `yaml` (?) in response.
So we add a placeholder to `vmalert`.
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2583
Signed-off-by: hagen1778 <roman@victoriametrics.com>
For liquid text processor double braces `{{` `}}`
are special chars for templating.
Since we use them in some of our docs with different purpose,
we must escape them to avoid syntax errors from liquid.
For escaping curly braces we use bult-in plugin which helps
to enclose sections of text via `{% raw %}` and `{% endraw %}`.
This approach prevents liquid syntax errors and makes render correct.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Rules executor within group tracks series sent to remote write
in order to mark them as stale if they had disappeared in next
evaluation round.
The executor uses rules ID as a key to identifies series which belong to rule.
On config reload, executor remains active but the set of rules could change.
Hence, we need to properly cleanup the tracker for rules which has been disappeared
on config reload.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* deployment/docker: pass `-buildvs=false` to `go build` for production builds
This should resolve the `error obtaining VCS status: exit status 128` error
when the environment contains incorrect version of git or has incorrect access rights
to the directory with VictoriaMetrics source code.
See the following links for additional info:
- https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2508#issuecomment-1117126702 ,
- https://github.com/google/ko/issues/672
- https://github.com/golang/go/issues/49004
* lib/netutil: limit the number of concurrently established connections when calling ConnPool.Get()
This should reduce potential spikes in the number of established connections in the following cases:
- when the connection establishing procedure becomes temporarily slow
- after a temporary spike in the rate of ConnPool.Get() calls
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2552
* docs/CHANGELOG.md: document c8af625bcc
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1322#issuecomment-1120276146
* docs/Cluster-VictoriaMetrics.md: typo fix: `by by` -> `by`
* docs: add `resource usage limits` docs, which describe fine-grained tuning for various resource usage limits
* docs/Cluster-VictoriaMetrics.md: the `/api/v1/label/.../values` query can take CPU and ram at both vmstorage and vmselect
* Update root Readme and root vmagent readme
Co-authored-by: Aliaksandr Valialkin <valyala@victoriametrics.com>
This should reduce potential spikes in the number of established connections in the following cases:
- when the connection establishing procedure becomes temporarily slow
- after a temporary spike in the rate of ConnPool.Get() calls
See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2552
* vmalert: calculate time for firing alert based on the given timestamp
Previously, current time was used for checking the `firing` threshold.
This is not correct, since alerts are evaluated at specific timestamps.
Hence, this specific timestamp supposed to be used in the calculation.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
* vmalert: properly calculate evaluation timestamp for rules
Timestamp for rules evaluation should be calculated after
the artifical delay for groups start. Otherwise, evaluation
timestamp can fall back too far in time.
Signed-off-by: hagen1778 <roman@victoriametrics.com>
Make it possible to migrate timeseries while restoring the
original timeseries name previously written from Prometheus
to InfluxDB v1 via remote_write.
Fixes: https://github.com/VictoriaMetrics/vmctl/issues/8
Previously ScrapeConfig.clone() was improperly copying promauth.Secret fields -
their contents was replaced with `<secret>` value.
This led to inability to use passwords and secrets in `-promscrape.config` file.
The bug has been introduced in v1.77.0 in the commit 67b10896d2
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2551
