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From "Uma Maheswara Rao G (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-10473) Allow only suitable storage policies to be set on striped files
Date Sat, 11 Jun 2016 20:31:21 GMT

     [ https://issues.apache.org/jira/browse/HDFS-10473?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Uma Maheswara Rao G updated HDFS-10473:
---------------------------------------
    Attachment: HDFS-10473-03.patch

Addressed some check-style issues. More than 80 cars line.
Have not fixed whitespace issues reported in check style as they look invalid for me.
Other white space issues in patch was unrelated. they are from LICENSE.txt
Corrected test failures issue.

Please review the patch.

> Allow only suitable storage policies to be set on striped files
> ---------------------------------------------------------------
>
>                 Key: HDFS-10473
>                 URL: https://issues.apache.org/jira/browse/HDFS-10473
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Uma Maheswara Rao G
>            Assignee: Uma Maheswara Rao G
>         Attachments: HDFS-10473-01.patch, HDFS-10473-02.patch, HDFS-10473-03.patch
>
>
> Currently some of existing storage policies are not suitable for striped layout files.
> This JIRA proposes to reject setting storage policy on striped files.
> Another thought is to allow only suitable storage polices like ALL_SSD.
> Since the major use case of EC is for cold data, this may not be at high importance.
So, I am ok to reject setting storage policy on striped files at this stage. Please suggest
if others have some thoughts on this.
> Thanks [~zhz] for offline discussion on this.



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