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From "sankalp kohli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-10499) ConcurrentModificationException in Background read repair
Date Fri, 09 Oct 2015 18:03:05 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-10499?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14950881#comment-14950881
] 

sankalp kohli commented on CASSANDRA-10499:
-------------------------------------------

cc [~brandon.williams]

>  ConcurrentModificationException in Background read repair
> ----------------------------------------------------------
>
>                 Key: CASSANDRA-10499
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-10499
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: sankalp kohli
>            Priority: Minor
>
> We are seeing the below exception in 2.0.14. While looking at the code, it looks like
it is happening due to ColumnFamily object being modified in SQF. trim method.
> Exception in thread Thread[ReadRepairStage:4441,5,main]
> java.util.ConcurrentModificationException
> 	at java.util.ArrayList$Itr.checkForComodification(ArrayList.java:859)
> 	at java.util.ArrayList$Itr.next(ArrayList.java:831)
> 	at org.apache.cassandra.db.ColumnFamily.updateDigest(ColumnFamily.java:394)
> 	at org.apache.cassandra.db.ColumnFamily.digest(ColumnFamily.java:388)
> 	at org.apache.cassandra.service.RowDigestResolver.resolve(RowDigestResolver.java:84)
> 	at org.apache.cassandra.service.RowDigestResolver.resolve(RowDigestResolver.java:28)
> 	at org.apache.cassandra.service.ReadCallback$AsyncRepairRunner.run(ReadCallback.java:173)
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> 	at java.lang.Thread.run(Thread.java:745)



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