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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] Assigned: (HDFS-1111) getCorruptFiles() should give some hint that the list is not complete
Date Wed, 11 Aug 2010 00:21:18 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1111?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Konstantin Shvachko reassigned HDFS-1111:

    Assignee: Sriram Rao  (was: Rodrigo Schmidt)

+1 on the last y20 patch.

Sriram told me he is working on a ptach for trunk.
As I proposed earlier it would be good to remove unnecessary ClientProtocol method getCorruptFiles()
as it is not used anywhere, and it would be a waste of resources to support it. It is a public
method, so if people think we need to vote on this, please raise the question.

> getCorruptFiles() should give some hint that the list is not complete
> ---------------------------------------------------------------------
>                 Key: HDFS-1111
>                 URL: https://issues.apache.org/jira/browse/HDFS-1111
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: Rodrigo Schmidt
>            Assignee: Sriram Rao
>         Attachments: HADFS-1111.0.patch, HDFS-1111-y20.1.patch, HDFS-1111-y20.2.patch
> If the list of corruptfiles returned by the namenode doesn't say anything if the number
of corrupted files is larger than the call output limit (which means the list is not complete).
There should be a way to hint incompleteness to clients.
> A simple hack would be to add an extra entry to the array returned with the value null.
Clients could interpret this as a sign that there are other corrupt files in the system.
> We should also do some rephrasing of the fsck output to make it more confident when the
list is not complete and less confident when the list is known to be incomplete.

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