Andrew Onischuk created AMBARI-17339:
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Summary: Ambari alert "NameNode Last Checkpoint" failing when
NameNode is HA
Key: AMBARI-17339
URL: https://issues.apache.org/jira/browse/AMBARI-17339
Project: Ambari
Issue Type: Bug
Reporter: Andrew Onischuk
Assignee: Andrew Onischuk
Fix For: 2.4.0
The "NameNode Last Checkpoint" alert is implemented in
_alert_checkpoint_time.py_. This script uses the value of **dfs.namenode.http-
address** property for querying the last checkpoint timestamp.
This works fine when the NN is not in HA mode. However when NN is in HA mode
this property is either not defined or might not be pointing to the right NN
instance.
The script needs to be improved such as to figure out if the NN is in HA mode.
If it's in HA mode do not use **dfs.namenode.http-address** property but
rather determine the correct URL to connect to similarly as how it's done in
the _alert_ha_namenode_health.py_
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