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Branimir Lambov commented on CASSANDRA-10515:
---------------------------------------------
Let us know if that fix does not solve the problem. On the first form, did re-levelling improve
the situation?
> Commit logs back up with move to 2.1.10
> ---------------------------------------
>
> Key: CASSANDRA-10515
> URL: https://issues.apache.org/jira/browse/CASSANDRA-10515
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: redhat 6.5, cassandra 2.1.10
> Reporter: Jeff Griffith
> Assignee: Branimir Lambov
> Priority: Critical
> Labels: commitlog, triage
> Attachments: C5commitLogIncrease.jpg, CommitLogProblem.jpg, CommitLogSize.jpg,
MultinodeCommitLogGrowth-node1.tar.gz, RUN3tpstats.jpg, cassandra.yaml, cfstats-clean.txt,
stacktrace.txt, system.log.clean
>
>
> After upgrading from cassandra 2.0.x to 2.1.10, we began seeing problems where some nodes
break the 12G commit log max we configured and go as high as 65G or more before it restarts.
Once it reaches the state of more than 12G commit log files, "nodetool compactionstats" hangs.
Eventually C* restarts without errors (not sure yet whether it is crashing but I'm checking
into it) and the cleanup occurs and the commit logs shrink back down again. Here is the nodetool
compactionstats immediately after restart.
> {code}
> jgriffith@prod1xc1.c2.bf1:~$ ndc
> pending tasks: 2185
> compaction type keyspace table completed total
unit progress
> Compaction SyncCore *cf1* 61251208033 170643574558
bytes 35.89%
> Compaction SyncCore *cf2* 19262483904 19266079916
bytes 99.98%
> Compaction SyncCore *cf3* 6592197093 6592316682
bytes 100.00%
> Compaction SyncCore *cf4* 3411039555 3411039557
bytes 100.00%
> Compaction SyncCore *cf5* 2879241009 2879487621
bytes 99.99%
> Compaction SyncCore *cf6* 21252493623 21252635196
bytes 100.00%
> Compaction SyncCore *cf7* 81009853587 81009854438
bytes 100.00%
> Compaction SyncCore *cf8* 3005734580 3005768582
bytes 100.00%
> Active compaction remaining time : n/a
> {code}
> I was also doing periodic "nodetool tpstats" which were working but not being logged
in system.log on the StatusLogger thread until after the compaction started working again.
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