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Posted to issues@tez.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2014/03/19 09:32:45 UTC

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

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

Siddharth Seth updated TEZ-949:
-------------------------------

    Summary: Handle Session Tokens for Recovery  (was: Handle recovery of Session Tokens)

> 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
>
> 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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