sandflee created YARN-3987:
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Summary: am container complete msg ack to NM once RM receive it
Key: YARN-3987
URL: https://issues.apache.org/jira/browse/YARN-3987
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Reporter: sandflee
In our cluster we set max-am-attempts to a very very large num, and
unfortunately our am crash after launched, leaving too many completed
container(AM container) in NM. completed container is removed from NM and
NMStateStore only if container complete is passed to AM, but if AM couldn't be
launched, the completed AM container couldn't be cleaned, and may eat up NM
heap memory.
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