Robert Kanter created YARN-4408:
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Summary: NodeManager still reports negative running containers
Key: YARN-4408
URL: https://issues.apache.org/jira/browse/YARN-4408
Project: Hadoop YARN
Issue Type: Bug
Components: nodemanager
Affects Versions: 2.4.0
Reporter: Robert Kanter
Assignee: Robert Kanter
YARN-1697 fixed a problem where the NodeManager metrics could report a negative
number of running containers. However, it missed a rare case where this can
still happen.
YARN-1697 added a flag to indicate if the container was actually launched
({{LOCALIZED}} to {{RUNNING}}) or not ({{LOCALIZED}} to {{KILLING}}), which is
then checked when transitioning from {{CONTAINER_CLEANEDUP_AFTER_KILL}} to
{{DONE}} and {{EXITED_WITH_FAILURE}} to {{DONE}} to only decrement the gauge if
we actually ran the container and incremented the gauge . However, this flag
is not checked while transitioning from {{EXITED_WITH_SUCCESS}} to {{DONE}}.
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