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From "Raghu Angadi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1946) du should be not called on every heartbeat
Date Wed, 26 Sep 2007 15:38:51 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12530466
] 

Raghu Angadi commented on HADOOP-1946:
--------------------------------------

:). Thats right. I saw the same conditional there and didn't look more to verify.

> du should be not called on every heartbeat
> ------------------------------------------
>
>                 Key: HADOOP-1946
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1946
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>    Affects Versions: 0.15.0
>            Reporter: Konstantin Shvachko
>            Assignee: Hairong Kuang
>            Priority: Blocker
>             Fix For: 0.15.0
>
>         Attachments: du.patch
>
>
> Data-nodes run very slow. The reason is that du is executed on each and every heartbeat.
> Looks like the condition in DU.getUsed(), which triggers the refresh of cached values,
should be reversed.

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