Cheolsoo Park created PIG-3602:
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Summary: Tear down TezSessions when Pig exits
Key: PIG-3602
URL: https://issues.apache.org/jira/browse/PIG-3602
Project: Pig
Issue Type: Sub-task
Components: tez
Affects Versions: tez-branch
Reporter: Cheolsoo Park
Fix For: tez-branch
Currently, Pig reuses AMs via TezSession, but they are not shut down when Pig
exits. There are two problems that I noticed with this-
# Tez jobs are not marked as finished until TezSessions are expired after
timeout. Since they occupy task slots, it blocks submitting jobs.
# ant clean test-tez leaves orphan processes (DAGAppMaster).
Ideally, TezSession should be kept alive while Pig runs but tore down when Pig
exits.
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