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From "Bhupendra Kumar Jain (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-14777) Replication fails with IndexOutOfBoundsException
Date Wed, 18 Nov 2015 11:03:11 GMT

    [ https://issues.apache.org/jira/browse/HBASE-14777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010766#comment-15010766
] 

Bhupendra Kumar Jain commented on HBASE-14777:
----------------------------------------------

Thanks Ashu and Appy
I was on festival vacation, So didn't check this further. 

V3 looks good. Can you also add the failure scenario in test case(DummyReplicator can throw
exception). This can cover the scenarios when entry from entryLists should not be removed
and retried. 

Initially I observed the index problem during my code review and during simulation of the
same, I was printing the index returned from the future like below code
{code}
int i = (int)f.get();
entryLists.remove(i);
{code}
Since I was assigning as int , so thats the reason, I got IndexOutOfBoundsException. But as
[~ashu210890] pointed out, before index problem, the other problem of removal exists. 

Thanks for looking into this

> Replication fails with IndexOutOfBoundsException
> ------------------------------------------------
>
>                 Key: HBASE-14777
>                 URL: https://issues.apache.org/jira/browse/HBASE-14777
>             Project: HBase
>          Issue Type: Bug
>          Components: Replication
>            Reporter: Bhupendra Kumar Jain
>            Assignee: Bhupendra Kumar Jain
>            Priority: Critical
>             Fix For: 2.0.0, 1.2.0, 1.3.0
>
>         Attachments: HBASE-14777-1.patch, HBASE-14777-2.patch, HBASE-14777-3.patch, HBASE-14777.patch
>
>
> Replication fails with IndexOutOfBoundsException 
> {code}
> regionserver.ReplicationSource$ReplicationSourceWorkerThread(939): org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint
threw unknown exception:java.lang.IndexOutOfBoundsException: Index: 1, Size: 1
> 	at java.util.ArrayList.rangeCheck(Unknown Source)
> 	at java.util.ArrayList.remove(Unknown Source)
> 	at org.apache.hadoop.hbase.replication.regionserver.HBaseInterClusterReplicationEndpoint.replicate(HBaseInterClusterReplicationEndpoint.java:222)
> {code}
> Its happening due to incorrect removal of entries from the replication entries list.




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