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Date: Mon, 29 Sep 2014 19:23:34 +0000 (UTC)
From: "Arpit Agarwal (JIRA)" <jira@apache.org>
To: hdfs-issues@hadoop.apache.org
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Subject: [jira] [Updated] (HDFS-7159) Use block storage policy to set lazy
 persist preference
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     [ https://issues.apache.org/jira/browse/HDFS-7159?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arpit Agarwal updated HDFS-7159:
--------------------------------
    Attachment:     (was: HDFS-7159.03.patch)

> Use block storage policy to set lazy persist preference
> -------------------------------------------------------
>
>                 Key: HDFS-7159
>                 URL: https://issues.apache.org/jira/browse/HDFS-7159
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Arpit Agarwal
>            Assignee: Arpit Agarwal
>         Attachments: HDFS-7159.01.patch, HDFS-7159.02.patch
>
>
> Now that HDFS-6584 feature is ready and supports block storage policies on both files and directories, we can make use of Storage Policies to store the LAZY_PERSIST preference.
> This only affects how the preference is persisted in the FsImage/Edit logs. There is no change to the client API or to NN-DN interaction.
> An additional advantage is that can support setting the lazy persist preference on a directory and it will take effect for all new files.


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