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Plamen Jeliazkov commented on HDFS-14067: ----------------------------------------- Thanks [~csun] and [~xkrogen], I understand better now. Chao, I was going to say that the .000 patch only fixes client and does not address the server-side check but it is sounding like this JIRA is tending towards a "Won't Fix". I leave it up to you guys for how to proceed here; if you end up posting another patch I will review it / test it. For the sake of testing as a whole though I will simply use `--forcemanual` for now. If we intend to support automatic failover then it seems we will need to complicate things. > Allow manual failover between standby and observer > -------------------------------------------------- > > Key: HDFS-14067 > URL: https://issues.apache.org/jira/browse/HDFS-14067 > Project: Hadoop HDFS > Issue Type: Sub-task > Reporter: Chao Sun > Assignee: Chao Sun > Priority: Major > Attachments: HDFS-14067-HDFS-12943.000.patch > > > Currently if automatic failover is enabled in a HA environment, transition > from standby to observer would be blocked: > {code} > [hdfs@*** hadoop-3.3.0-SNAPSHOT]$ bin/hdfs haadmin -transitionToObserver ha2 > Automatic failover is enabled for NameNode at **** > Refusing to manually manage HA state, since it may cause > a split-brain scenario or other incorrect state. > If you are very sure you know what you are doing, please > specify the --forcemanual flag. > {code} > We should allow manual transition between standby and observer in this case. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org