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Posted to dev@hive.apache.org by "Prasanth Jayachandran (JIRA)" <ji...@apache.org> on 2017/04/27 02:00:09 UTC
[jira] [Created] (HIVE-16546) LLAP: Fail map join tasks if hash
table memory exceeds threshold
Prasanth Jayachandran created HIVE-16546:
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Summary: LLAP: Fail map join tasks if hash table memory exceeds threshold
Key: HIVE-16546
URL: https://issues.apache.org/jira/browse/HIVE-16546
Project: Hive
Issue Type: Bug
Components: llap
Affects Versions: 3.0.0
Reporter: Prasanth Jayachandran
Assignee: Prasanth Jayachandran
When map join task is running in llap, it can potentially use lot more memory than its limit which could be memory per executor or no conditional task size. If it uses more memory, it can adversely affect other query performance or it can even bring down the daemon. In such cases, it is better to fail the query than to bring down the daemon.
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