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https://issues.apache.org/jira/browse/HADOOP-5712?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12701284#action_12701284
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Hairong Kuang commented on HADOOP-5712:
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Wow! After Koji figured out the cause of the problem, he talked about the same 
timestamp solution as what Doug suggested. This reminded me of a Chinese 
saying: all heroes have the same great idea! :-)

One minor suggestion... This solution assumes that all client machines have 
synchronized clocks. We could eliminate possible conflicts by appending 
client's machine name as well.

> Namenode slowed down when many files with same filename were moved to Trash
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-5712
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5712
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.18.3
>            Reporter: Koji Noguchi
>            Priority: Minor
>


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