[jira] [Resolved] (TEZ-1446) Move the fetch code for local disk fetch from data movement event handlers to fetcher

["Siddharth Seth (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/TEZ-1446?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Siddharth Seth resolved TEZ-1446.
---------------------------------

       Resolution: Fixed
    Fix Version/s: 0.5.1

Committed to master and branch-0.5.

> Move the fetch code for local disk fetch from data movement event handlers to fetcher
> -------------------------------------------------------------------------------------
>
>                 Key: TEZ-1446
>                 URL: https://issues.apache.org/jira/browse/TEZ-1446
>             Project: Apache Tez
>          Issue Type: Bug
>            Reporter: Prakash Ramachandran
>            Assignee: Prakash Ramachandran
>             Fix For: 0.5.1
>
>         Attachments: TEZ-1446.1.patch, TEZ-1446.2.patch, TEZ-1446.3.patch
>
>
> doing the fetch in the EventHandler has the drawback of tying up the EventHandling thread, in case it takes time to read the Index file. Even, for a healthy disk - we can do without any delays on this thread, so that the fetcher have some work to do.  
> Also Need to add Unit test cases for the local fetch.



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