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https://issues.apache.org/jira/browse/YARN-9345?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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liyakun updated YARN-9345:
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Issue Type: Improvement (was: New Feature)
> NM actively does not accept new containers in the heartbeat
> -----------------------------------------------------------
>
> Key: YARN-9345
> URL: https://issues.apache.org/jira/browse/YARN-9345
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: nodemanager
> Reporter: liyakun
> Assignee: liyakun
> Priority: Major
>
> At present, NM has only one health check mechanism. If it enters an unhealthy
> state, all the containers running on it will be killed.
> However, the unhealthy condition of node can be divided into two types, one
> is long-term unavailable (current health mechanism), and the other is only
> temporary pressure.
> For temporary stress, node only needs to wait for a while to return to
> normal (such as temporary load high).
> To do this, we need to extend the functionality of the health check to join
> the state of temporarily not accepting new tasks(do not kill the container
> that is already running).
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