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Date: Mon, 14 Sep 2015 13:53:45 +0000 (UTC)
From: "Adam Bliss (JIRA)" <jira@apache.org>
To: commits@cassandra.apache.org
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Subject: [jira] [Commented] (CASSANDRA-10270) Cassandra stops compacting
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    [ https://issues.apache.org/jira/browse/CASSANDRA-10270?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14743535#comment-14743535 ] 

Adam Bliss commented on CASSANDRA-10270:
----------------------------------------

Quick update: I have one table on STCS which has been working great with the workaround posted. However, I have another copy which I tried altering to LeveledCompactionStrategy and it seems to still be exhibiting the same behavior (compaction eventually quits with ~400 sstables on disk).

> Cassandra stops compacting
> --------------------------
>
>                 Key: CASSANDRA-10270
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10270
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: linux (google cloud click-to-deploy, default settings, 3 nodes)
>            Reporter: Adam Bliss
>            Assignee: Marcus Eriksson
>            Priority: Critical
>             Fix For: 3.0.0 rc1, 2.2.2
>
>         Attachments: system.log.gz, system.txt.gz
>
>
> My cassandra cluster won't keep compacting. I notice that if I restart, it does compact for a while, but after a time it stops. As a result, after adding a bunch of rows, I ended up with about 1000 sstables per node.
> I'll attach more logs in a minute, but it seems like this might be the most relevant part:
> {noformat}
> INFO  [CompactionExecutor:1] 2015-09-04 14:22:55,796 CompactionManager.java:1433 - Compaction interrupted: Compaction@fff9bcd0-3b1f-11e5-8df6-33158d7bf3bf(megacrawl2, ranks_by_domain, 812501702/7543091905)bytes
> DEBUG [CompactionExecutor:1] 2015-09-04 14:22:55,797 CompactionManager.java:1437 - Full interruption stack trace:
> org.apache.cassandra.db.compaction.CompactionInterruptedException: Compaction interrupted: Compaction@fff9bcd0-3b1f-11e5-8df6-33158d7bf3bf(megacrawl2, ranks_by_
> domain, 812501702/7543091905)bytes
>         at org.apache.cassandra.db.compaction.CompactionTask.runMayThrow(CompactionTask.java:180) ~[apache-cassandra-2.2.1.jar:2.2.1]
>         at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28) ~[apache-cassandra-2.2.1.jar:2.2.1]
>         at org.apache.cassandra.db.compaction.CompactionTask.executeInternal(CompactionTask.java:74) ~[apache-cassandra-2.2.1.jar:2.2.1]
>         at org.apache.cassandra.db.compaction.AbstractCompactionTask.execute(AbstractCompactionTask.java:59) ~[apache-cassandra-2.2.1.jar:2.2.1]                        at org.apache.cassandra.db.compaction.CompactionManager$BackgroundCompactionCandidate.run(CompactionManager.java:236) ~[apache-cassandra-2.2.1.jar:2.2.1]                                                                                                                                                                       at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471) ~[na:1.7.0_79]
>         at java.util.concurrent.FutureTask.run(FutureTask.java:262) ~[na:1.7.0_79]                                                                                      at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) ~[na:1.7.0_79]                                                               at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) [na:1.7.0_79]                                                                at java.lang.Thread.run(Thread.java:745) [na:1.7.0_79]
> DEBUG [CompactionExecutor:1] 2015-09-04 14:22:55,797 CompactionManager.java:222 - Checking system.local                                                         DEBUG [CompactionExecutor:1] 2015-09-04 14:22:55,797 SizeTieredCompactionStrategy.java:85 - Compaction buckets are [[BigTableReader(path='/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/la-83-big-Data.db'), BigTableReader(path='/cassandra/data/system/local-7ad54392bcdd35a684174e047860b377/la-81-big-Data.db'),
> {noformat}


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