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From Yusaku Sako <>
Subject Re: How long does Ambari retain metrics?
Date Thu, 12 Jun 2014 17:46:12 GMT
Ambari currently uses Ganglia/RRD (Round Robin Database) to collect metrics.

You can modify the granularity and how long the samples are kept by
(in case of Hadoop 2)
(in case of Hadoop 1)
on the ambari-server host.

See [1] on how to tweak the numbers.



On Thu, Jun 12, 2014 at 10:27 AM, Vignesh <> wrote:

> Hi,
> We would like to collect and retain usage statistics for all our hadoop
> clusters and will use ambari for that.
> How long does Ambari retain the metrics?
> As per
> it is possible to get metrics for a given timerange. How far back can we go
> and is it configurable?
> -Vignesh.

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