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Posted to issues@tez.apache.org by "Siddharth Seth (JIRA)" <ji...@apache.org> on 2014/03/19 09:32:43 UTC

[jira] [Created] (TEZ-949) Handle recovery of Session Tokens

Siddharth Seth created TEZ-949:
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             Summary: Handle recovery of Session Tokens
                 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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