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https://issues.apache.org/jira/browse/HADOOP-13427?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15626656#comment-15626656
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Hadoop QA commented on HADOOP-13427:
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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-13427 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 Issue | HADOOP-13427 |
| JIRA Patch URL |
https://issues.apache.org/jira/secure/attachment/12830700/HADOOP-13427-002.patch
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| Console output |
https://builds.apache.org/job/PreCommit-HADOOP-Build/10949/console |
| Powered by | Apache Yetus 0.4.0-SNAPSHOT http://yetus.apache.org |
This message was automatically generated.
> Eliminate needless uses of FileSystem.exists, isFile, isDirectory
> ------------------------------------------------------------------
>
> Key: HADOOP-13427
> URL: https://issues.apache.org/jira/browse/HADOOP-13427
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.8.0
> Reporter: Steve Loughran
> Assignee: Steve Loughran
> Priority: Minor
> Attachments: HADOOP-13427-001.patch, HADOOP-13427-002.patch
>
>
> We're cleaning up Hive and Spark's use of FileSystem.exists, because it is
> often the case we see code of exists+open, exists+delete, when the exists
> probe is needless. Against object stores, expensive needless.
> Hadoop can set an example here by stripping them out. It will also show where
> there are opportunities to optimise things better and/or improve reporting.
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