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From "Christian Kunz (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2755) dfs fsck extremely slow, dfs ls times out
Date Thu, 31 Jan 2008 23:21:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12564544#action_12564544
] 

Christian Kunz commented on HADOOP-2755:
----------------------------------------

This is a 1300 active node cluster with blockreports every hour  each (they seem to take a
couple of seconds each) and heartbeat interval every minute. This configuration did not change,
but did anything change lately regarding heartbeat / blockreport?

> 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
>    Affects Versions: 0.16.0
>         Environment: Jan 28 nightly build
> With patches 2095, 2119, and 2723
>            Reporter: Christian Kunz
>            Assignee: dhruba borthakur
>            Priority: Blocker
>             Fix For: 0.16.0
>
>
> 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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