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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-19450) OOM due to map join and backup task not invoked
Date Sun, 14 Oct 2018 20:15:00 GMT

    [ https://issues.apache.org/jira/browse/HIVE-19450?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16649520#comment-16649520
] 

Hive QA commented on HIVE-19450:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12924677/HIVE-19450.2.patch

{color:red}ERROR:{color} -1 due to no test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 15078 tests passed

Test results: https://builds.apache.org/job/PreCommit-HIVE-Build/14454/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/14454/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-14454/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12924677 - PreCommit-HIVE-Build

> OOM due to map join and backup task not invoked
> -----------------------------------------------
>
>                 Key: HIVE-19450
>                 URL: https://issues.apache.org/jira/browse/HIVE-19450
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 2.1.1
>            Reporter: zhuwei
>            Assignee: zhuwei
>            Priority: Major
>         Attachments: HIVE-19450.1.patch, HIVE-19450.2.patch
>
>
> Map join task may cause OOM due to orc compression , in most cases , a backup task will
be invoked. However , if the size of hash table is close to memory limit, the task which load
the hash table will NOT fail . OOM will happen in next task witch do local join. The load
task has a backup but next task not. So in this case , the whole query will fail.



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