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From "Sebastian Estevez (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8537) ConcurrentModificationException while executing 'nodetool cleanup'
Date Thu, 08 Jan 2015 04:02:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14268793#comment-14268793
] 

Sebastian Estevez commented on CASSANDRA-8537:
----------------------------------------------

Additional details, tried the following procedures with the same result:

restart Cassandra then cleanup.
repair -pr then cleanup (No errors with repair)
repair then cleanup (No errors with repair)
nodetool scrub then cleanup (No errors with scrub)
nodetool rebuild_index (the only index on the table) then cleanup (No errors on the rebuild_index)

> ConcurrentModificationException while executing 'nodetool cleanup'
> ------------------------------------------------------------------
>
>                 Key: CASSANDRA-8537
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8537
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Tools
>         Environment: Debian 7.7, Oracle JRE 1.7.0_72
>            Reporter: Noureddine Chatti
>            Assignee: Marcus Eriksson
>            Priority: Minor
>             Fix For: 2.1.3
>
>
> After adding a new node to an existing cluster (7 already started nodes), and waiting
a few minutes to be sure that data migration to the new node is completed, I began to use
the command nodetool cleanup sequentially on each old node. When I issued this command on
the third node, after a few minutes I got a ConcurrentModificationException.
> ~$ nodetool cleanup
> error: null
> -- StackTrace --
> java.util.ConcurrentModificationException
>         at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
>         at java.util.ArrayList$Itr.next(Unknown Source)
>         at org.apache.cassandra.db.index.SecondaryIndexManager.deleteFromIndexes(SecondaryIndexManager.java:476)
>         at org.apache.cassandra.db.compaction.CompactionManager$CleanupStrategy$Full.cleanup(CompactionManager.java:833)
>         at org.apache.cassandra.db.compaction.CompactionManager.doCleanupOne(CompactionManager.java:704)
>         at org.apache.cassandra.db.compaction.CompactionManager.access$400(CompactionManager.java:97)
>         at org.apache.cassandra.db.compaction.CompactionManager$5.execute(CompactionManager.java:370)
>         at org.apache.cassandra.db.compaction.CompactionManager$2.call(CompactionManager.java:267)
>         at java.util.concurrent.FutureTask.run(Unknown Source)
>         at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
>         at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
>         at java.lang.Thread.run(Unknown Source)



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