Chao Sun created HDFS-13286:
-------------------------------
Summary: Add haadmin commands to transition between standby and
observer
Key: HDFS-13286
URL: https://issues.apache.org/jira/browse/HDFS-13286
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Chao Sun
Assignee: Chao Sun
As discussed in HDFS-12975, we should allow explicit transition between standby
and observer through haadmin command, such as:
{code}
haadmin -transitionToObserver
{code}
Initially we should support transition from observer to standby, and standby to
observer.
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