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From "Ari Rabkin (JIRA)" <j...@apache.org>
Subject [jira] Commented: (CHUKWA-447) Load increased by 50% when using ExecAdaptor instead of org.apache.hadoop.chukwa.inputtools.plugin.metrics.Exec+FileTailingAdaptor
Date Mon, 18 Jan 2010 20:38:54 GMT

    [ https://issues.apache.org/jira/browse/CHUKWA-447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12801943#action_12801943
] 

Ari Rabkin commented on CHUKWA-447:
-----------------------------------

Can you say anything about the configuration settings in use? Which processes are you forking?
Same as before, or different?

> Load increased by 50% when using ExecAdaptor instead of org.apache.hadoop.chukwa.inputtools.plugin.metrics.Exec+FileTailingAdaptor
> ----------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: CHUKWA-447
>                 URL: https://issues.apache.org/jira/browse/CHUKWA-447
>             Project: Hadoop Chukwa
>          Issue Type: Improvement
>          Components: input tools
>    Affects Versions: 0.3.0, 0.4.0
>         Environment: Redhat EL 5.1, Java 6
>            Reporter: Eric Yang
>         Attachments: Picture 4.png
>
>
> While I am coming up a fix for CHUKWA-446, I notice the load average increased by ExecAdaptor.
 There is probably something that could be improved to reduce the cost of ExecAdaptor.

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