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https://issues.apache.org/jira/browse/HIVE-21153?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Work on HIVE-21153 stopped by Chris Bogan.
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> task run in parallel cause ArrayIndexOutOfBoundsException
> ---------------------------------------------------------
>
> Key: HIVE-21153
> URL: https://issues.apache.org/jira/browse/HIVE-21153
> Project: Hive
> Issue Type: Bug
> Components: Testing Infrastructure
> Reporter: yx91490
> Assignee: Chris Bogan
> Priority: Major
>
> It happens occasionally when we run sql in parallel and the job is
> blocked.the reason is HiveConf class is not thread safe, and
> SessionState.createSessionDirs() is not Synchronized.
> the error message:
> java.lang.ArrayIndexOutOfBoundsException: 22
> at java.util.ArrayList.add(ArrayList.java:459)
> at org.apache.hadoop.hive.conf.HiveConf.setupRestrictList(HiveConf.java:3216)
> at org.apache.hadoop.hive.conf.HiveConf.addToRestrictList(HiveConf.java:3191)
> at
> org.apache.hadoop.hive.ql.session.SessionState.createSessionDirs(SessionState.java:651)
> at
> org.apache.hadoop.hive.ql.session.SessionState.start(SessionState.java:547)
> at org.apache.hadoop.hive.ql.exec.TaskRunner.run(TaskRunner.java:78)
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