qinyuren created HDFS-16514:
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Summary: Reduce the failover sleep time if multiple namenode are
configured
Key: HDFS-16514
URL: https://issues.apache.org/jira/browse/HDFS-16514
Project: Hadoop HDFS
Issue Type: Improvement
Reporter: qinyuren
Attachments: image-2022-03-21-18-11-37-191.png
Recently, we used the [Standby Read] feature in our test cluster, and deployed
4 namenode:
node1 -> active nn
node2 -> standby nn
node3 -> observer nn
node3 -> observer nn
If we set ’dfs.client.failover.random.order=true‘, the client may failover
twice and wait a long time to send msync to active namenode.
!image-2022-03-21-18-11-37-191.png|width=987,height=239!
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