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From Bill Farner <wfar...@apache.org>
Subject Re: How to customize /graphview for monitoring
Date Tue, 10 Feb 2015 04:23:16 GMT
Zameer is correct, these values aim to be real-time.  Some of the more
expensive ones are calculated asynchronously and have their own intervals,
but you should feel free to capture them as frequently as you would like.

On Monday, February 9, 2015, Zameer Manji <zmanji@apache.org> wrote:

> I think most of the stats are as real time as possible. At Twitter the
> stats are collected at a minutely interval which provide enough resolution
> to monitor the scheduler with confidence.
>
> On Mon, Feb 9, 2015 at 5:19 PM, Mohammed, Ashfaque <
> asmohammed@paypal.com.invalid> wrote:
>
> > Hi Bill,
> >
> > Just to make sure I understood, your suggestion is to periodically call
> > {http-url-of-the-aurora-scheduler}/vars export the data to an external
> > system and build monitoring based-on the exported data.
> >
> > Another questions, how frequently does the snapshot given by /var changes
> > internally within aurora? Basically trying to figure-out how frequently
> > should the stats be exported.
> >
> > Thanks.
> > Ash.
> >
> > -----Original Message-----
> > From: Bill Farner [mailto:wfarner@apache.org <javascript:;>]
> > Sent: Monday, February 09, 2015 4:56 PM
> > To: dev@aurora.incubator.apache.org <javascript:;>
> > Subject: Re: How to customize /graphview for monitoring
> >
> > You can, but i do not advise it, as it will consume more memory in the
> > scheduler.  /graphview should be seen as an on-the spot debugging tool
> > rather than a monitoring solution.  I strongly suggest you export stats
> to
> > a first-class monitoring system.
> >
> > The knob for this is the stat_retention_period command line argument.
> >
> > -=Bill
> >
> > On Mon, Feb 9, 2015 at 2:59 PM, Mohammed, Ashfaque <
> > asmohammed@paypal.com.invalid> wrote:
> >
> > > Hi,
> > >
> > > If I am not mistaken, looks like by default /graphview shows a plot of
> > > last one hour. Is there a way to customize it to show for example last
> > > 6, 12, 24 hours.
> > >
> > > I looked thorough the following page
> > > https://github.com/apache/incubator-aurora/blob/master/docs/monitoring
> > > .md
> > > but my question was not answered.
> > >
> > > Thanks.
> > > Ash.
> > >
> >
> > --
> > Zameer Manji
> >
> >
>


-- 
-=Bill

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