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https://issues.apache.org/jira/browse/HBASE-14777?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15010277#comment-15010277
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Appy commented on HBASE-14777:
------------------------------
Indeed, what threw ArrayIndexOutofBoundsException?
Overall patch looks good. I have two questions though:
- why are we returning index and iterating reverse and all. Can't we simply
remove first element every time given the fact we are going in order and
blocking on futures. Such a simple logic would have avoided the bug in first
place.
- Why change utility cluster from 2 to 4? If it is a non-trivial reason, please
add a comment for the same.
> 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.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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