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https://issues.apache.org/jira/browse/HDFS-16547?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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tomscut updated HDFS-16547:
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Summary: [SBN read] Namenode in safe mode should not be transfered to
observer state (was: [SBN read] Namenode in safe mode should not be transfer
to observer state)
> [SBN read] Namenode in safe mode should not be transfered to observer state
> ---------------------------------------------------------------------------
>
> Key: HDFS-16547
> URL: https://issues.apache.org/jira/browse/HDFS-16547
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: tomscut
> Assignee: tomscut
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> Currently, when a Namenode is in safemode(under starting or enter safemode
> manually), we can transfer this Namenode to Observer by command. This
> Observer node may receive many requests and then throw a SafemodeException,
> this causes unnecessary failover on the client.
> So Namenode in safe mode should not be transfer to observer state.
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