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deployment/alerts: add new alerting rules TooLongLabelValues and TooLongLabelNames to notify about truncation of label values or names respectively.

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Signed-off-by: hagen1778 <roman@victoriametrics.com>
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hagen1778 2024-05-24 15:09:52 +02:00
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2 changed files with 22 additions and 1 deletions
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20
deployment/docker/alerts-health.yml
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@ -98,3 +98,23 @@ groups:
For example, `reason=too_long_item` means that time series cannot exceed 64KB. Please, reduce the number
of labels or label values for such series. Or enforce these limits via `-maxLabelsPerTimeseries` and
`-maxLabelValueLen` command-line flags."
- alert: TooLongLabelValues
expr: increase(vm_too_long_label_values_total[5m]) > 0
labels:
severity: critical
annotations:
summary: "VictoriaMetrics truncates too long label values"
description: "The maximum length of a label value is limited via `-maxLabelValueLen` cmd-line flag.
Longer label values are truncated and may result into time series overlapping.
Please, check your logs to find which labels were truncated and
either reduce the size of label values or increase `-maxLabelValueLen`".
- alert: TooLongLabelNames
expr: increase(vm_too_long_label_names_total[5m]) > 0
labels:
severity: critical
annotations:
summary: "VictoriaMetrics truncates too long label names"
description: "The maximum length of a label name is limited by 256 bytes.
Longer label names are truncated and may result into time series overlapping.".

1
docs/CHANGELOG.md
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@ -54,6 +54,7 @@ See also [LTS releases](https://docs.victoriametrics.com/lts-releases/).
* FEATURE: [vmalert](https://docs.victoriametrics.com/vmalert/): support reading [DNS SRV](https://en.wikipedia.org/wiki/SRV_record) records in `-datasource.url`, `-remoteWrite.url` and `-remoteRead.url` command-line option. For example, `-remoteWrite.url=http://srv+victoria-metrics` automatically resolves the `victoria-metrics` DNS SRV to a list of hostnames with TCP ports and then sends data to one of the addresses. See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6053).
* FEATURE: [vmbackup](https://docs.victoriametrics.com/vmbackup/), [vmrestore](https://docs.victoriametrics.com/vmrestore/), [vmbackupmanager](https://docs.victoriametrics.com/vmbackupmanager/): add `-s3TLSInsecureSkipVerify` command-line flag for skipping TLS certificates verification when connecting to S3 endpoint.
* FEATURE: expose metric `vm_indexdb_items_dropped_total` to track the number of IndexDB records that had to be dropped during ingestion. The reason of dropping the record will be annotated in `reason` label of the exposed metric. This change also comes with a new [alerting rule](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts-health.yml) to track changes of this metric.
* FEATURE: [alerts-health](https://github.com/VictoriaMetrics/VictoriaMetrics/blob/master/deployment/docker/alerts-health.yml): add new alerting rules `TooLongLabelValues` and `TooLongLabelNames` to notify about truncation of label values or names respectively.
* BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix bug that prevents the first query trace from expanding on click event. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6186). The issue was introduced in [v1.100.0](https://docs.victoriametrics.com/changelog/#v11000) release.
* BUGFIX: [vmui](https://docs.victoriametrics.com/#vmui): fix calendar display when `UTC+00:00` timezone is set. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/6239).