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https://issues.apache.org/jira/browse/HIVE-13512?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ashutosh Chauhan updated HIVE-13512:
------------------------------------
Resolution: Fixed
Fix Version/s: 2.1.0
Status: Resolved (was: Patch Available)
Pushed to master. Thanks, [~petersla]
> Make initializing dag ids in TezWork thread safe for parallel compilation
> -------------------------------------------------------------------------
>
> Key: HIVE-13512
> URL: https://issues.apache.org/jira/browse/HIVE-13512
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2, Query Planning
> Affects Versions: 2.0.0
> Reporter: Peter Slawski
> Assignee: Peter Slawski
> Priority: Minor
> Fix For: 2.1.0
>
> Attachments: HIVE-13512.1.patch, HIVE-13512.1.patch
>
>
> When parallel query compilation is enabled, it is possible for concurrent
> running threads to create TezWork objects that have the same dag id. This is
> because the counter used to obtain the next dag id is not thread safe. The
> counter should be an AtomicInteger rather than an int.
> {code:java}
> private static int counter;
> ...
> public TezWork(String queryId, Configuration conf) {
> this.dagId = queryId + ":" + (++counter);
> ...
> }
> {code}
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