Daniel Dai created PIG-3539:
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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.
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