VictoriaMetrics/lib/persistentqueue
Aliaksandr Valialkin 5034aa0773
app/vmagent: follow-up for 090cb2c9de
- Add Try* prefix to functions, which return bool result in order to improve readability and reduce the probability of missing check
  for the result returned from these functions.

- Call the adjustSampleValues() only once on input samples. Previously it was called on every attempt to flush data to peristent queue.

- Properly restore the initial state of WriteRequest passed to tryPushWriteRequest() before returning from this function
  after unsuccessful push to persistent queue. Previously a part of WriteRequest samples may be lost in such case.

- Add -remoteWrite.dropSamplesOnOverload command-line flag, which can be used for dropping incoming samples instead
  of returning 429 Too Many Requests error to the client when -remoteWrite.disableOnDiskQueue is set and the remote storage
  cannot keep up with the data ingestion rate.

- Add vmagent_remotewrite_samples_dropped_total metric, which counts the number of dropped samples.

- Add vmagent_remotewrite_push_failures_total metric, which counts the number of unsuccessful attempts to push
  data to persistent queue when -remoteWrite.disableOnDiskQueue is set.

- Remove vmagent_remotewrite_aggregation_metrics_dropped_total and vm_promscrape_push_samples_dropped_total metrics,
  because they are replaced with vmagent_remotewrite_samples_dropped_total metric.

- Update 'Disabling on-disk persistence' docs at docs/vmagent.md

- Update stale comments in the code

Updates https://github.com/VictoriaMetrics/VictoriaMetrics/pull/5088
Updates https://github.com/VictoriaMetrics/VictoriaMetrics/issues/2110
2023-11-25 12:09:44 +02:00
..
fastqueue_test.go app/vmagent: follow-up for 090cb2c9de 2023-11-25 12:09:44 +02:00
fastqueue_timing_test.go app/vmagent: follow-up for 090cb2c9de 2023-11-25 12:09:44 +02:00
fastqueue.go app/vmagent: follow-up for 090cb2c9de 2023-11-25 12:09:44 +02:00
filenames.go lib/{fs,persistentqueue}: use filepath.Join() instead of concatenating path parts with / 2023-04-13 20:13:45 -07:00
persistentqueue_test.go app/vmagent,lib/persistentqueue: show warning message if --remoteWrite.maxDiskUsagePerURL flag lower than 500MB () 2023-04-26 13:23:01 +03:00
persistentqueue_timing_test.go lib/persistentqueue: delete corrupted persistent queue instead of throwing a fatal error 2021-04-05 19:26:11 +03:00
persistentqueue.go lib/persistentqueue: properly re-create flock.lock file inside directory if persistent queue is broken. 2023-10-31 18:38:32 +01:00