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Posted to issues@tez.apache.org by "Hitesh Shah (JIRA)" <ji...@apache.org> on 2013/08/23 23:57:52 UTC

[jira] [Updated] (TEZ-349) Add support for Tez Sessions

     [ https://issues.apache.org/jira/browse/TEZ-349?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Hitesh Shah updated TEZ-349:
----------------------------

    Summary: Add support for Tez Sessions  (was: Allow Tez sessions to be created in the TezClient)
    
> Add support for Tez Sessions
> ----------------------------
>
>                 Key: TEZ-349
>                 URL: https://issues.apache.org/jira/browse/TEZ-349
>             Project: Apache Tez
>          Issue Type: Sub-task
>            Reporter: Siddharth Seth
>            Assignee: Hitesh Shah
>              Labels: TEZ-0.2.0
>         Attachments: TEZ-349.2.wip.patch, TEZ-349.3.patch, TEZ-349.proposal.patch
>
>
> Requested by [~hagleitn].
> Essentially, users of TezClient (Hive in this case) would create a Tez session. This session can then be used to submit multiple DAGs. 
> Internally, TezClient can control whether an AM is run within the same process, in unmanaged mode, on the cluster etc. Initially, we'd likely end up creating one AM per submitted DAG. Once TEZ-340 is in place, the same AM could be re-used for multiple non-concurrent DAGs.

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