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Posted to issues@tez.apache.org by "Hitesh Shah (JIRA)" <ji...@apache.org> on 2014/03/21 01:18:46 UTC

[jira] [Resolved] (TEZ-949) Handle Session Tokens for Recovery

     [ https://issues.apache.org/jira/browse/TEZ-949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hitesh Shah resolved TEZ-949.
-----------------------------

       Resolution: Fixed
    Fix Version/s: 0.4.0

> Handle Session Tokens for Recovery
> ----------------------------------
>
>                 Key: TEZ-949
>                 URL: https://issues.apache.org/jira/browse/TEZ-949
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Siddharth Seth
>            Assignee: Hitesh Shah
>             Fix For: 0.4.0
>
>         Attachments: TEZ-949.1.patch, TEZ-949.2.patch
>
>
> The tokens used by Fetchers to connect to the ShuffleHandler are generated in the AM. Once an AM is restarted, the token will be regenerated - and new Reduces will not be able to fetch output from previous Mappers.
> Similar to MAPREDUCE-5042. 



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