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From "Mac Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-79) Chukwa should use less memory to collect SystemMetrics
Date Mon, 04 May 2009 03:42:30 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-79?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12705474#action_12705474
] 

Mac Yang commented on CHUKWA-79:
--------------------------------

Reported from a user,

I saw 6 java processes whose job are nothing but launching external  
commands (sar, ps, netstat, iostat, df, top, iostat). Each process  
takes 150mb virtual memory and 20MB residential memory. This is a  
total of 120MB for doing very trivial things.

> Chukwa should use less memory to collect SystemMetrics
> ------------------------------------------------------
>
>                 Key: CHUKWA-79
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-79
>             Project: Hadoop Chukwa
>          Issue Type: New Feature
>          Components: input tools
>            Reporter: Jerome Boulon
>            Assignee: Cheng
>
> Chukwa is using 1 daemon process per Exec command. 
> This should be reduced to one and we should investigate how to use 3rd party libraries
to collect system metrics in a more efficient way.

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