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https://issues.apache.org/jira/browse/CHUKWA-447?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12802347#action_12802347
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Eric Yang commented on CHUKWA-447:
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The commands are identical before and after. Here is what is in my
initial_adaptors:
{code}
add org.apache.hadoop.chukwa.datacollection.adaptor.ExecAdaptor Iostat 60
/usr/bin/iostat -x -k 55 2 0
add org.apache.hadoop.chukwa.datacollection.adaptor.ExecAdaptor Df 60 /bin/df
-l 0
add org.apache.hadoop.chukwa.datacollection.adaptor.ExecAdaptor Sar 60
/usr/bin/sar -q -r -n ALL 55 0
add org.apache.hadoop.chukwa.datacollection.adaptor.ExecAdaptor Top 60
/usr/bin/top -b -n 1 -c 0
{code}
> 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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