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https://issues.apache.org/jira/browse/HADOOP-2755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12564646#action_12564646
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Tsz Wo (Nicholas), SZE commented on HADOOP-2755:
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> I noticed that before the patch I needed to be the owner, now any user can
> run fsck.
In both cases, fsck should be able to run by any user since the codes are in
NameNode. We will change it so that only superuser can run fsck later.
> dfs fsck extremely slow, dfs ls times out
> -----------------------------------------
>
> Key: HADOOP-2755
> URL: https://issues.apache.org/jira/browse/HADOOP-2755
> Project: Hadoop Core
> Issue Type: Bug
> Components: dfs
> Affects Versions: 0.16.0
> Environment: Jan 28 nightly build
> With patches 2095, 2119, and 2723
> Reporter: Christian Kunz
> Assignee: Tsz Wo (Nicholas), SZE
> Priority: Blocker
> Fix For: 0.16.0
>
> Attachments: 2755_20080131.patch, 2755_20080131b.patch
>
>
> I upgraded a Hadoop installation to the Jan 28 nightly build.
> DFS contains 2.4+ M files.
> Upgrade finished but not finalized.
> Before finalizing I wanted to run fsck on the DFS. It hardly progressed after
> 6 hours (not finished yet). With the '-files' option turned on, it lists
> about 300 entries in 10 minutes.
> And when I tried to list a subdirectory with 100,000 files, it repeatedly
> (about 20 attempts) timed out.
> Changing timeout from 1 to 10 minutes did not help.
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