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From "Daniel Dai (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (PIG-3539) Pig should be able to submit multiple DAG
Date Fri, 08 Nov 2013 19:42:17 GMT

     [ https://issues.apache.org/jira/browse/PIG-3539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Daniel Dai updated PIG-3539:
----------------------------

    Attachment:     (was: PIG-3539-1.patch)

> Pig should be able to submit multiple DAG
> -----------------------------------------
>
>                 Key: PIG-3539
>                 URL: https://issues.apache.org/jira/browse/PIG-3539
>             Project: Pig
>          Issue Type: Sub-task
>          Components: tez
>            Reporter: Daniel Dai
>            Assignee: Daniel Dai
>             Fix For: tez-branch
>
>
> There could be several scenario Pig want to submit multiple DAG:
> 1. a blocking operator in grunt
> 2. a blocking operator in script (exec, fs)
> 3. break a DAG into two for possible inner DAG optimization
> Pig should use TezSession so that we can reuse AM. TezSession should be a thread local
variable. For those who use Pig Java API, they will use the same AM within a thread, but different
AM in another thread.



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