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