virajjasani commented on PR #5396:
URL: https://github.com/apache/hadoop/pull/5396#issuecomment-1430775234
For this change, the entire behavior is optional:
```
<property>
<name>dfs.datanode.health.activennconnect.timeout</name>
<value>0</value>
<description>
If the value is greater than 0, each datanode would try to determine
if it is healthy i.e.
all block pools are correctly initialized and able to heartbeat to
active namenode. At any
given time, if the datanode looses connection to active namenode for
the duration of
milliseconds represented by the value of this config, it will attempt
to shut down itself.
If the value is 0, datanode would not perform any such checks.
</description>
</property>
```
Without providing non-default value for this config, this behavior does not
take any effect.
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