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https://issues.apache.org/jira/browse/HIVE-4996?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13887423#comment-13887423
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Szehon Ho commented on HIVE-4996:
---------------------------------
One more observation about the particular BoneCP error "BoneCP detected an
unclosed connection and will now attempt to close it for you." It seems it is
a problem of the 0.8.0 release. There are some discussions about this,
including at
[http://jolbox.com/forum/viewtopic.php?f=3&t=387&start=10|http://jolbox.com/forum/viewtopic.php?f=3&t=387&start=10].
We have not seen the error when we reverted back to BoneCP 0.7.1.
But I guess this is an orthogonal issue, as any transient DB/Bonecp error will
be hidden by RetryingRawStore bug. Just so happens that with BoneCP 0.8.0, it
seems to be more frequent.
> unbalanced calls to openTransaction/commitTransaction
> -----------------------------------------------------
>
> Key: HIVE-4996
> URL: https://issues.apache.org/jira/browse/HIVE-4996
> Project: Hive
> Issue Type: Bug
> Components: Metastore
> Affects Versions: 0.10.0, 0.11.0, 0.12.0
> Environment: hiveserver1 Java HotSpot(TM) 64-Bit Server VM (build
> 20.6-b01, mixed mode)
> Reporter: wangfeng
> Assignee: Szehon Ho
> Priority: Critical
> Labels: hive, metastore
> Attachments: hive-4996.path
>
> Original Estimate: 504h
> Remaining Estimate: 504h
>
> when we used hiveserver1 based on hive-0.10.0, we found the Exception
> thrown.It was:
> FAILED: Error in metadata: MetaException(message:java.lang.RuntimeException:
> commitTransaction was called but openTransactionCalls = 0. This probably
> indicates that the
> re are unbalanced calls to openTransaction/commitTransaction)
> FAILED: Execution Error, return code 1 from
> org.apache.hadoop.hive.ql.exec.DDLTask
> help
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