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https://issues.apache.org/jira/browse/HDFS-4248?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13508011#comment-13508011
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Daryn Sharp commented on HDFS-4248:
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Odd, I was having some renames rewrite paths to nest into the target dir.
Maybe I didn't have a clean tree like I thought I did, or maybe it only
happened on 23 which is where I did the primary work and then ported to trunk.
Given that this patch, I think, is a very good cleanup of the existing code and
at a minimum prevents removal in some cases instead of a rewrite of leases -
which I think causes the dest files under construction to not be written to the
image - is it ok to commit this patch?
> Renames may cause dangling leases
> ---------------------------------
>
> Key: HDFS-4248
> URL: https://issues.apache.org/jira/browse/HDFS-4248
> 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: h4248_20121130_test_rename.patch,
> HDFS-4248.branch-0.23.patch, HDFS-4248.patch
>
>
> Renames of directories may incorrectly re-write the paths in leases under the
> tree being moved.
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