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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8468) 2 RPC calls for every file read in DFSClient#open(..) resulting in double Audit log entries
Date Wed, 01 Jul 2015 04:37:05 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14609544#comment-14609544
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Vinayakumar B commented on HDFS-8468:
-------------------------------------

bq. Can we merge the DFSInputStream portion of the patch to trunk? We should also merge other
refactors in DFSInputStream to trunk. I can file a separate JIRA for it.
Yes, I am on it.

bq. Also, as a follow-on to HDFS-8605, should we also merge the setCurrentPacket2Empty refactor?
You mean merge back to branch?

> 2 RPC calls for every file read in DFSClient#open(..) resulting in double Audit log entries
> -------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8468
>                 URL: https://issues.apache.org/jira/browse/HDFS-8468
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>    Affects Versions: HDFS-7285
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>             Fix For: HDFS-7285
>
>         Attachments: HDFS-8468-HDFS-7285-02.patch, HDFS-8468-HDFS-7285.patch
>
>
> In HDFS-7285 branch, 
> To determine whether file is striped/not and get the Schema for the file, 2 RPCs done
to Namenode.
> This is resulting in double audit logs for every file read for both striped/non-striped.
> This will be a major impact in size of audit logs.



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