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https://issues.apache.org/jira/browse/HADOOP-4795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12654608#action_12654608
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Konstantin Shvachko commented on HADOOP-4795:
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# I would rename Monitor.check() to something like checkLeases().
# {{esle}} statement can be removed.
# Wrapping String Collection into {{ArrayList}} can be replaced by collecting
paths to be removed in an {{ArrayList}} and then removing them afterwards in a
separate loop. This will be much less copying.
> Lease monitor may get into an infinite loop
> -------------------------------------------
>
> Key: HADOOP-4795
> URL: https://issues.apache.org/jira/browse/HADOOP-4795
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Reporter: Tsz Wo (Nicholas), SZE
> Priority: Blocker
> Fix For: 0.18.3
>
> Attachments: 4795_20081205.patch, 4795_20081208.patch
>
>
> If a lease is not found in the namespace for some reasons (e.g. bugs), lease
> monitor may get into an infinite loop.
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