Weiwei Yang created YARN-8511:
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Summary: When AM releases a container, RM removes allocation tags
before it is released by NM
Key: YARN-8511
URL: https://issues.apache.org/jira/browse/YARN-8511
Project: Hadoop YARN
Issue Type: Bug
Components: capacity scheduler
Affects Versions: 3.1.0
Reporter: Weiwei Yang
Assignee: Weiwei Yang
User leverages PC with allocation tags to avoid port conflicts between apps, we
found sometimes they still get port conflicts. This is a similar issue like
YARN-4148. Because RM immediately removes allocation tags once AM#allocate asks
to release a container, however container on NM has some delay until it
actually gets killed and released the port. We should let RM remove allocation
tags AFTER NM confirms the containers are released.
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