Andrii Tkach created AMBARI-8106:
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Summary: Ambari not showing HDFS Block status metrics of active
namenode after a failover
Key: AMBARI-8106
URL: https://issues.apache.org/jira/browse/AMBARI-8106
Project: Ambari
Issue Type: Bug
Components: ambari-web
Affects Versions: 1.7.0
Reporter: Andrii Tkach
Assignee: Andrii Tkach
Priority: Critical
Fix For: 1.7.0
PROBLEM:
Ambari shows HDFS Block status metrics for NN1(active namenode). But when a
failover happens to NN2, Ambari doesn't show the Block status metrics for
NN2(current active namenode).
BUSINESS IMPACT:
Users not able to see the metrics via Ambari. They need to go to the Ganglia
Web UI to monitor the metrics.
STEPS TO REPRODUCE:
1. Currently NN1 is active. We are able to see the HDFS Block status metrics in
Ambari
2. Failover to NN2.
3. We will not be able to see the Block status metrics for NN2.
SUPPORT ANALYSIS:
Support reproduced this issue in house.
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