I recently upgraded from C* 3.0.10 to 3.0.16 and have been receiving these warnings about Commit-Log durations being longer than the configured interval. I don’t understand what the problem is, why is the system complaining about such small sync durations? Please advice.
Here are some warnings:
3:WARN [PERIODIC-COMMIT-LOG-SYNCER] 2019-03-07 13:32:23,785 NoSpamLogger.java:94 - Out of 2750 commit log syncs over the past 274s with average duration of 0.66ms, 4 have exceeded the configured commit interval by an average of 22.50ms
2:WARN [PERIODIC-COMMIT-LOG-SYNCER] 2019-03-07 13:27:01,214 NoSpamLogger.java:94 - Out of 1 commit log syncs over the past 0s with average duration of 113.00ms, 1 have exceeded the configured commit interval by an average of 13.00ms
Node’s cassandra.yaml setting related to Commit-Log: