Mailing-List: contact dev-help@pig.apache.org; run by ezmlm
Precedence: bulk
Reply-To: dev@pig.apache.org
Date: Wed, 23 Oct 2013 00:54:42 +0000 (UTC)
From: "Daniel Dai (JIRA)" <jira@apache.org>
To: pig-dev@hadoop.apache.org
Message-ID: <JIRA.12675162.1382489614751.107619.1382489682835@arcas>
In-Reply-To: <JIRA.12675162.1382489614751@arcas>
References: <JIRA.12675162.1382489614751@arcas>
Subject: [jira] [Created] (PIG-3539) Pig should be able to submit multiple
 DAG
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit

Daniel Dai created PIG-3539:
-------------------------------

             Summary: 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.


--
This message was sent by Atlassian JIRA
(v6.1#6144)