John created AMBARI-7782:
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Summary: Stop RegionServer may fail during enabling NameNode HA
Key: AMBARI-7782
URL: https://issues.apache.org/jira/browse/AMBARI-7782
Project: Ambari
Issue Type: Bug
Components: ambari-server
Affects Versions: 1.7.0
Reporter: John
Ambari will stop and restart all service during the period of enable Namenode
HA. Sometimes, stop HBase RegionServer may fail which causes the failure of
"Stop all service" operation. At this moment, one or more retries can overcome
this problem.
The possible root cause of this issue may be that: command
"/usr/lib/hbase/bin/hbase-daemon.sh --config /etc/hbase/conf stop regionserver"
consumes 30 + epsilon seconds; timeout handler is triggered since deadline is
missed; begin to force kill process (this operation fails because its start
time is after 30 + epsilon at which HBase RegionServer is offline).
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