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lib/storage: log warning about RO mode only on state change (#5191)

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Before, vmstorage would log the same message each second producing excessive
amount of logs.

See https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5159

Signed-off-by: hagen1778 <roman@victoriametrics.com>
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Roman Khavronenko 2023-10-30 10:52:57 +01:00 committed by GitHub
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commit 29cebd82fb
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2 changed files with 6 additions and 2 deletions
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1
docs/CHANGELOG.md
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@ -71,6 +71,7 @@ The sandbox cluster installation is running under the constant load generated by
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): properly drop samples if `-streamAggr.dropInput` command-line flag is set and `-remoteWrite.streamAggr.config` contains an empty file. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5207).
* BUGFIX: [vmagent](https://docs.victoriametrics.com/vmagent.html): do not print redundant error logs when failed to scrape consul or nomad target. See [this pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5239).
* BUGFIX: [vmstorage](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html): prevent deleted series to be searchable via `/api/v1/series` API if they were re-ingested with staleness markers. This situation could happen if user deletes the series from the target and from VM, and then vmagent sends stale markers for absent series. Thanks to @ilyatrefilov for the [issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5069) and [pull request](https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5174).
* BUGFIX: [vmstorage](https://docs.victoriametrics.com/Cluster-VictoriaMetrics.html): log warning about switching to ReadOnly mode only on state change. Before, vmstorage would log this warning every 1s. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/5159) for details.
## [v1.94.0](https://github.com/VictoriaMetrics/VictoriaMetrics/releases/tag/v1.94.0)

7
lib/storage/storage.go
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@ -648,9 +648,12 @@ func (s *Storage) startFreeDiskSpaceWatcher() {
f := func() {
freeSpaceBytes := fs.MustGetFreeSpace(s.path)
if freeSpaceBytes < freeDiskSpaceLimitBytes {
if atomic.LoadUint32(&s.isReadOnly) == 0 {
// log notification only on state change
logger.Warnf("switching the storage at %s to read-only mode, since it has less than -storage.minFreeDiskSpaceBytes=%d of free space: %d bytes left",
s.path, freeDiskSpaceLimitBytes, freeSpaceBytes)
}
// Switch the storage to readonly mode if there is no enough free space left at s.path
logger.Warnf("switching the storage at %s to read-only mode, since it has less than -storage.minFreeDiskSpaceBytes=%d of free space: %d bytes left",
s.path, freeDiskSpaceLimitBytes, freeSpaceBytes)
atomic.StoreUint32(&s.isReadOnly, 1)
return
}