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From "Surendra Singh Lilhore (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11291) Avoid unnecessary edit log for setStoragePolicy() and setReplication()
Date Wed, 04 Jan 2017 17:18:58 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11291?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Surendra Singh Lilhore updated HDFS-11291:
    Status: Patch Available  (was: Open)

> Avoid unnecessary edit log for setStoragePolicy() and setReplication()
> ----------------------------------------------------------------------
>                 Key: HDFS-11291
>                 URL: https://issues.apache.org/jira/browse/HDFS-11291
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: Surendra Singh Lilhore
>            Assignee: Surendra Singh Lilhore
>         Attachments: HDFS-11291.001.patch
> We are setting the storage policy for file without checking the current policy of file
for avoiding extra getStoragePolicy() rpc call. Currently namenode is not checking the current
storage policy before setting new one and adding edit logs. I think if the old and new storage
policy is same we can avoid set operation.

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