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Eric Badger commented on HDFS-11207: ------------------------------------ Thanks, [~kihwal]! > Revert HDFS-5079. Cleaning up NNHAStatusHeartbeat.State > DatanodeProtocolProtos. > ------------------------------------------------------------------------------- > > Key: HDFS-11207 > URL: https://issues.apache.org/jira/browse/HDFS-11207 > Project: Hadoop HDFS > Issue Type: Bug > Components: rolling upgrades > Affects Versions: 3.0.0-alpha1 > Reporter: Eric Badger > Assignee: Eric Badger > Priority: Critical > Fix For: 3.0.0-alpha2 > > Attachments: HDFS-11207.001.patch > > > HDFS-5079 changed the meaning of state in {{NNHAStatusHeartbeat}} when it > added in the {{INITIALIZING}} state via {{HAServiceStateProto}}. > Before change: > {noformat} > enum State { > ACTIVE = 0; > STANDBY = 1; > } > {noformat} > After change: > {noformat} > enum HAServiceStateProto { > INITIALIZING = 0; > ACTIVE = 1; > STANDBY = 2; > } > {noformat} > So the new {{INITIALIZING}} state will be interpreted as {{ACTIVE}}, new > {{ACTIVE}} interpreted as {{STANDBY}} and new {{STANDBY}} interpreted as > unknown. Any rolling upgrade to 3.0.0 will break because the datanodes that > haven't been updated will misinterpret the NN state. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: hdfs-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: hdfs-issues-h...@hadoop.apache.org