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https://issues.apache.org/jira/browse/HIVE-13002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15135569#comment-15135569
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Thejas M Nair commented on HIVE-13002:
--------------------------------------
+1
But I don't get why the Hive object is getting concurrently used in this case.
The 'thread local'ness of Hive object should be preventing that.
> metastore call timing is not threadsafe
> ---------------------------------------
>
> Key: HIVE-13002
> URL: https://issues.apache.org/jira/browse/HIVE-13002
> Project: Hive
> Issue Type: Bug
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-13002.patch
>
>
> Discovered in some q test run:
> {noformat}
> TestCliDriver.testCliDriver_insert_values_orig_table:123->runTest:199
> Unexpected exception java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:926)
> at java.util.HashMap$EntryIterator.next(HashMap.java:966)
> at java.util.HashMap$EntryIterator.next(HashMap.java:964)
> at
> org.apache.hadoop.hive.ql.metadata.Hive.dumpAndClearMetaCallTiming(Hive.java:3412)
> at
> org.apache.hadoop.hive.ql.Driver.dumpMetaCallTimingWithoutEx(Driver.java:574)
> at org.apache.hadoop.hive.ql.Driver.execute(Driver.java:1722)
> at org.apache.hadoop.hive.ql.Driver.runInternal(Driver.java:1342)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1113)
> at org.apache.hadoop.hive.ql.Driver.run(Driver.java:1101)
> {noformat}
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