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https://issues.apache.org/jira/browse/HBASE-4130?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13069962#comment-13069962
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Ted Yu commented on HBASE-4130:
-------------------------------
HTable has always been thread unsafe.
> HTable.flushCommits throws IndexOutOfBoundsException
> ----------------------------------------------------
>
> Key: HBASE-4130
> URL: https://issues.apache.org/jira/browse/HBASE-4130
> Project: HBase
> Issue Type: Bug
> Components: client
> Affects Versions: 0.90.3
> Reporter: Zizon
>
> Using a HTable instance with auto commit disabled in multiple thread may
> raise IndexOutOfBoundsException , as the processBatchOfPuts remove the
> commited results by their index which may be wrong as the list size shortened
> by other thread.
> the following is the stack trace.
> java.lang.IndexOutOfBoundsException: Index: 3781, Size: 2222
> at java.util.ArrayList.RangeCheck(ArrayList.java:547)
> at java.util.ArrayList.remove(ArrayList.java:387)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.processBatchOfPuts(HConnectionManager.java:1252)
> at org.apache.hadoop.hbase.client.HTable.flushCommits(HTable.java:826)
> at org.apache.hadoop.hbase.client.HTable.doPut(HTable.java:682)
> at org.apache.hadoop.hbase.client.HTable.put(HTable.java:667)
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