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Posted to issues@hive.apache.org by "Ashutosh Chauhan (JIRA)" <ji...@apache.org> on 2016/03/01 01:19:18 UTC
[jira] [Commented] (HIVE-13002) Hive object is not thread safe, is
shared via a threadlocal and thus should not be passed around too much -
part 1
[ https://issues.apache.org/jira/browse/HIVE-13002?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15172959#comment-15172959 ]
Ashutosh Chauhan commented on HIVE-13002:
-----------------------------------------
Patch looks good. Failures need to be looked at.
Do we know how perf logger was getting shared across threads? Which class was culprit for caching it?
> Hive object is not thread safe, is shared via a threadlocal and thus should not be passed around too much - part 1
> ------------------------------------------------------------------------------------------------------------------
>
> 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-13002.01.patch, HIVE-13002.02.patch, 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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