RE: [hobbit] New Hobbit stuff: Scalability and H/A work

[PNIXON (at) ci.somerville.ma.us]

While off topic, but how do you guys measure your IO to disk?

--Pat 

-----Original Message-----
From: Gildas Le Nadan [mailto:gn1 (at) sanger.ac.uk] 
Sent: Tuesday, October 31, 2006 11:49 AM
To: hobbit (at) hswn.dk
Subject: Re: [hobbit] New Hobbit stuff: Scalability and H/A work

Henrik Stoerner wrote:
> A couple of weeks ago, I was asked if our Hobbit system at work could 
> handle monitoring of one more customer. Of course, I said - no problem.
> Well, there was one gotcha: This customer has 1100+ servers that need 
> to be monitored. Which means my Hobbit installation is about to double 
> in the number of hosts monitored. Hmm ...
> 
> This will be interesting to watch. I am fairly confident that Hobbit 
> can handle it, with one exception: The disks on my Hobbit server will 
> be overloaded. It already spends about 50% of it's time in I/O wait, 
> so doubling the number of hosts with cpu/memory/disk etc. graphs will 
> probably crash it.

Strange that I/O seem to be an issue for you. What kind of system do you run
the hobbit server on?

I have ~3300 rrd files updated here on a blade with an old 40 Gig 5400 2,5"
hard drive and it is almost idle.

Cheers,
Gildas


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