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From "Ayush Saxena (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-13209) DistributedFileSystem.create should allow an option to provide StoragePolicy
Date Fri, 01 Feb 2019 03:17:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-13209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Ayush Saxena updated HDFS-13209:
    Attachment: HDFS-13209-03.patch

> DistributedFileSystem.create should allow an option to provide StoragePolicy
> ----------------------------------------------------------------------------
>                 Key: HDFS-13209
>                 URL: https://issues.apache.org/jira/browse/HDFS-13209
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs
>    Affects Versions: 3.0.0
>            Reporter: Jean-Marc Spaggiari
>            Assignee: Ayush Saxena
>            Priority: Major
>         Attachments: HDFS-13209-01.patch, HDFS-13209-02.patch, HDFS-13209-03.patch
> DistributedFileSystem.create allows to get a FSDataOutputStream. The stored file and
related blocks will used the directory based StoragePolicy.
> However, sometime, we might need to keep all files in the same directory (consistency
constraint) but might want some of them on SSD (small, in my case) until they are processed
and merger/removed. Then they will go on the default policy.
> When creating a file, it will be useful to have an option to specify a different StoragePolicy...

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