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From Eric Yang <>
Subject Re: Using Chukwa as monitoring tool.
Date Thu, 16 Dec 2010 16:57:58 GMT
Hi Akshay,

A) Yes.  You can use "add sigar.SystemMetrics SystemMetrics [interval] 0" to stream CPU state
at specified interval.  For example:

"add sigar.SystemMetrics SystemMetrics 5 0" without quotes will stream CPU state every 5 seconds.

B) Chukwa has a graphing tool built in which is called HICC.  It requires Hbase deployed in
order to use HICC.

However, agent is still required on the client machines.


On 12/16/10 4:34 AM, "Akshay Kumar" <> wrote:

I have a Hadoop installation, and I want to collect some basic OS level metrics like  - cpu,
memory, disk usage, and Hadoop metrics.

I have looked into Ganglia, but it requires installing agents on client machines, which is
what I want to avoid.

My queries:
a) Is this a fair use case for using chukwa? e.g. polling client machines for CPU stats few
times per minute?
b) Is it possible to integrate data collected from chukwa collectors in a form readable by
rrdtool kind of graphing tools on the server side?


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