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From "Eric Yang (JIRA)" <>
Subject [jira] Updated: (CHUKWA-419) Replace system metrics collection with sigar
Date Mon, 06 Sep 2010 22:37:32 GMT


Eric Yang updated CHUKWA-419:

    Attachment: CHUKWA-419-draft.patch


Run this in Agent:

add org.apache.hadoop.chukwa.datacollection.adaptor.sigar.SystemMetrics SystemMetrics 60 0

This will generate system metrics stats every 60 seconds, and serialized in JSON format. 
A demux parser is also supplied in this patch for storing system metrics.

> Replace system metrics collection with sigar
> --------------------------------------------
>                 Key: CHUKWA-419
>                 URL:
>             Project: Chukwa
>          Issue Type: Improvement
>          Components: data collection
>         Environment: Redhat EL 5.3, Java 6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>         Attachments: CHUKWA-419-draft.patch
> Instead of having multiple java vm to execute unix commands to collect system metrics
(CPU utilization, network, memory, disk), it's more efficient to collect the metrics through
JNI interface.  SIGAR is a good replacement for Chukwa's input tools.  All licenses considered,
it's the next best option than reinvent the wheel.

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