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From "Hive QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11291) Avoid allocation storm while doing rule matching on operator/expression trees
Date Fri, 17 Jul 2015 21:29:05 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11291?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14631937#comment-14631937
] 

Hive QA commented on HIVE-11291:
--------------------------------



{color:red}Overall{color}: -1 at least one tests failed

Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12745848/HIVE-11291.patch

{color:red}ERROR:{color} -1 due to 2 failed/errored test(s), 9223 tests executed
*Failed tests:*
{noformat}
org.apache.hadoop.hive.cli.TestCliDriver.testCliDriver_cbo_rp_join0
org.apache.hive.hcatalog.hbase.TestPigHBaseStorageHandler.org.apache.hive.hcatalog.hbase.TestPigHBaseStorageHandler
{noformat}

Test results: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4640/testReport
Console output: http://ec2-174-129-184-35.compute-1.amazonaws.com/jenkins/job/PreCommit-HIVE-TRUNK-Build/4640/console
Test logs: http://ec2-174-129-184-35.compute-1.amazonaws.com/logs/PreCommit-HIVE-TRUNK-Build-4640/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
Tests exited with: TestsFailedException: 2 tests failed
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12745848 - PreCommit-HIVE-TRUNK-Build

> Avoid allocation storm while doing rule matching on operator/expression trees
> -----------------------------------------------------------------------------
>
>                 Key: HIVE-11291
>                 URL: https://issues.apache.org/jira/browse/HIVE-11291
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Ashutosh Chauhan
>            Assignee: Ashutosh Chauhan
>         Attachments: HIVE-11291.patch
>
>
> RuleRegExMatch repeatedly allocates string while trying to find a matching pattern. This
results in huge GC churn for large trees.



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