Robert Parker created YARN-1101:
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Summary: Active nodes can be decremented below 0
Key: YARN-1101
URL: https://issues.apache.org/jira/browse/YARN-1101
Project: Hadoop YARN
Issue Type: Bug
Components: resourcemanager
Affects Versions: 2.0.6-alpha, 0.23.9, 3.0.0
Reporter: Robert Parker
Assignee: Robert Parker
The issue is in RMNodeImpl where both RUNNING and UNHEALTHY states that
transition to a deactive state (LOST, DECOMMISSIONED, REBOOTED) use the same
DeactivateNodeTransition class. The DeactivateNodeTransition class naturally
decrements the active node, however the in cases where the node has transition
to UNHEALTHY the active count has already been decremented.
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