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https://issues.apache.org/jira/browse/HADOOP-12858?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15425717#comment-15425717
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Hadoop QA commented on HADOOP-12858:
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| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m
0s{color} | {color:blue} Docker mode activated. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 5s{color}
| {color:red} HADOOP-12858 does not apply to trunk. Rebase required? Wrong
Branch? See https://wiki.apache.org/hadoop/HowToContribute for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12790782/HADOOP-12858.patch |
| JIRA Issue | HADOOP-12858 |
| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10290/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Reduce UGI getGroups overhead
> -----------------------------
>
> Key: HADOOP-12858
> URL: https://issues.apache.org/jira/browse/HADOOP-12858
> Project: Hadoop Common
> Issue Type: Improvement
> Components: performance
> Affects Versions: 2.0.0-alpha
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-12858.patch, HADOOP-12858.patch
>
>
> Group lookup generates excessive garbage with multiple conversions between
> collections and arrays.
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