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Posted to issues@hive.apache.org by "Rajesh Balamohan (JIRA)" <ji...@apache.org> on 2016/07/25 05:41:20 UTC

[jira] [Assigned] (HIVE-14323) Reduce number of FS permissions and redundant FS operations

     [ https://issues.apache.org/jira/browse/HIVE-14323?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rajesh Balamohan reassigned HIVE-14323:
---------------------------------------

    Assignee: Rajesh Balamohan

> Reduce number of FS permissions and redundant FS operations
> -----------------------------------------------------------
>
>                 Key: HIVE-14323
>                 URL: https://issues.apache.org/jira/browse/HIVE-14323
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-14323.1.patch
>
>
> Some examples are given below.
> 1. When creating stage directory, FileUtils sets the directory permissions by running a set of chgrp and chmod commands. In systems like S3, this would not be relevant.
> 2. In some cases, fs.delete() is followed by fs.exists(). In this case, it might be redundant to check for exists() (lookup ops are expensive in systems like S3). 



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