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From "Steve Loughran (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-13611) FileSystem/s3a processDeleteOnExit to skip the exists() check
Date Thu, 07 Sep 2017 09:24:00 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-13611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Steve Loughran updated HADOOP-13611:
------------------------------------
    Priority: Trivial  (was: Minor)

> FileSystem/s3a processDeleteOnExit to skip the exists() check
> -------------------------------------------------------------
>
>                 Key: HADOOP-13611
>                 URL: https://issues.apache.org/jira/browse/HADOOP-13611
>             Project: Hadoop Common
>          Issue Type: Sub-task
>          Components: fs, fs/s3
>    Affects Versions: 2.7.3
>            Reporter: Steve Loughran
>            Priority: Trivial
>
> If you look at {{FileSystem.processDeleteOnExit()}}, it does an exists() check for each
entry, before calling delete().
> That exists() check is superfluous; on s3 it add an extra 1-4 HTTP GETs
> This could be fixed with a subclass in s3a to avoid it, but as the call is superfluous
in *all* filesystems, it could be removed in {{FileSystem}} and so picked up by all object
stores.



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