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https://issues.apache.org/jira/browse/HDFS-4268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13578947#comment-13578947
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Konstantin Shvachko commented on HDFS-4268:
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{{HAServiceState.INITIALIZING}} means that {{NameNode.state == null}}. Based on
the initialization sequence this means RPC server has not started and therefore
there cannot be any heartbeats. Do you have a use case for AssertError?
> Remove redundant enum NNHAStatusHeartbeat.State
> -----------------------------------------------
>
> Key: HDFS-4268
> URL: https://issues.apache.org/jira/browse/HDFS-4268
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.0.2-alpha
> Reporter: Konstantin Shvachko
> Assignee: Konstantin Shvachko
> Fix For: 2.0.3-alpha
>
> Attachments: heartbeatHAState.patch, heartbeatHAState.patch
>
>
> NNHAStatusHeartbeat.State is redundant and can be replaced with commonly used
> enum HAServiceState.
> We should also consistently use HAServiceState to check if the state is
> ACTIVE or STANDBY rather than using {{instanceof}}.
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