liyakun created YARN-9345:
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Summary: 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: New Feature
Components: nodemanager
Reporter: liyakun
Assignee: liyakun
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.
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