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https://issues.apache.org/jira/browse/HDFS-8384?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jing Zhao updated HDFS-8384:
----------------------------
            Assignee: Jing Zhao  (was: Tsz Wo Nicholas Sze)
    Target Version/s: 2.8.0
              Status: Patch Available  (was: Open)

> Allow NN to startup if there are files having a lease but are not under 
> construction
> ------------------------------------------------------------------------------------
>
>                 Key: HDFS-8384
>                 URL: https://issues.apache.org/jira/browse/HDFS-8384
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Jing Zhao
>            Priority: Minor
>         Attachments: HDFS-8384.000.patch
>
>
> When there are files having a lease but are not under construction, NN will 
> fail to start up with
> {code}
> 15/05/12 00:36:31 ERROR namenode.FSImage: Unable to save image for 
> /hadoop/hdfs/namenode
> java.lang.IllegalStateException
>         at 
> com.google.common.base.Preconditions.checkState(Preconditions.java:129)
>         at 
> org.apache.hadoop.hdfs.server.namenode.LeaseManager.getINodesUnderConstruction(LeaseManager.java:412)
>         at 
> org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getFilesUnderConstruction(FSNamesystem.java:7124)
>         ...
> {code}
> The actually problem is that the image could be corrupted by bugs like 
> HDFS-7587.  We should have an option/conf to allow NN to start up so that the 
> problematic files could possibly be deleted.



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