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Posted to common-issues@hadoop.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2016/05/21 14:15:14 UTC

[jira] [Updated] (HADOOP-13164) Optimize S3AFileSystem::deleteUnnecessaryFakeDirectories

     [ https://issues.apache.org/jira/browse/HADOOP-13164?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran updated HADOOP-13164:
------------------------------------
    Affects Version/s: 2.8.0
             Priority: Minor  (was: Major)

> Optimize S3AFileSystem::deleteUnnecessaryFakeDirectories
> --------------------------------------------------------
>
>                 Key: HADOOP-13164
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13164
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs/s3
>    Affects Versions: 2.8.0
>            Reporter: Rajesh Balamohan
>            Priority: Minor
>
> https://github.com/apache/hadoop/blob/27c4e90efce04e1b1302f668b5eb22412e00d033/hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/S3AFileSystem.java#L1224
> deleteUnnecessaryFakeDirectories is invoked in S3AFileSystem during rename and on outputstream close() to purge any fake directories. Depending on the nesting in the folder structure, it might take a lot longer time as it invokes getFileStatus multiple times.  Instead, it should be able to break out of the loop once a non-empty directory is encountered. 



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