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https://issues.apache.org/jira/browse/HDFS-4247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13507460#comment-13507460
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Kihwal Lee commented on HDFS-4247:
----------------------------------

The patch looks good to me. There is no value in stopping namenode from 
starting in this case. Rather than permanently disabling the cluster, it should 
be able to come up. I hope we do not hit this once HDFS-4248 is done.
                
> saveNamespace should be tolerant of dangling lease
> --------------------------------------------------
>
>                 Key: HDFS-4247
>                 URL: https://issues.apache.org/jira/browse/HDFS-4247
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 0.23.0, 2.0.0-alpha, 3.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: HDFS-4247.branch-0.23.patch, HDFS-4247.patch
>
>
> Dangling leases to non-existent paths cause the NN to fail to start.

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