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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-4644) Compaction error with Cassandra 1.1.4 and LCS
Date Thu, 13 Sep 2012 21:35:09 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-4644?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-4644:
--------------------------------------

    Attachment:     (was: 4644.txt)
    
> Compaction error with Cassandra 1.1.4 and LCS 
> ----------------------------------------------
>
>                 Key: CASSANDRA-4644
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4644
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.4
>         Environment: Cassandra 1.1.4, Ubuntu Lucid (2.6.32-346), Amazon EC2 m1.xlarge
>            Reporter: Rudolf VanderLeeden
>         Attachments: 4644.txt
>
>
> In our 1.1.4 testcluster of 3 nodes with RF=3, KS=1, and CF=5, we are getting an asserting
error when running 'nodetool compact highscores leaderboard'. This stops compactions on the
'leaderboard' CF summing up to 11835 pending compactions. This error is seen only one one
node. 
> The SSTables have originally been created on a 1.1.2 cluster with STCS and then copied
to the testcluster also with 1.1.2. Repair, cleanup, compact were OK with STCS. Next, we changed
to LCS and did again repair, cleanup, compact with success. 
> Then we started to use this LCS-based testcluster intensively and created lots of data
and also large keys with millions of columns. 
> The assertion error in system.log :
>  INFO [CompactionExecutor:8] 2012-09-11 14:20:45,043 CompactionController.java (line
172) Compacting large row highscores/leaderboard:4c422d64626331353166372d363464612d343235342d396130322d6535616365343337373532332d676c6f62616c2d30
(72589650 bytes) incrementally
> ERROR [CompactionExecutor:8] 2012-09-11 14:20:50,336 AbstractCassandraDaemon.java (line
135) Exception in thread Thread[CompactionExecutor:8,1,RMI Runtime]
> java.lang.AssertionError
>         at org.apache.cassandra.db.compaction.LeveledManifest.promote(LeveledManifest.java:214)
>         at org.apache.cassandra.db.compaction.LeveledCompactionStrategy.handleNotification(LeveledCompactionStrategy.java:158)
>         at org.apache.cassandra.db.DataTracker.notifySSTablesChanged(DataTracker.java:531)
>         at org.apache.cassandra.db.DataTracker.replaceCompactedSSTables(DataTracker.java:254)
>         at org.apache.cassandra.db.ColumnFamilyStore.replaceCompactedSSTables(ColumnFamilyStore.java:992)
>         at org.apache.cassandra.db.compaction.CompactionTask.execute(CompactionTask.java:200)
>         at org.apache.cassandra.db.compaction.LeveledCompactionTask.execute(LeveledCompactionTask.java:50)
>         at org.apache.cassandra.db.compaction.CompactionManager$6.runMayThrow(CompactionManager.java:288)
>         at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:30)
>         at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:441)
>         at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:303)
>         at java.util.concurrent.FutureTask.run(FutureTask.java:138)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
>         at java.lang.Thread.run(Thread.java:662)

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