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Re: Reduce Load in VZs [message #43169 is a reply to message #43168] Wed, 03 August 2011 07:11 Go to previous messageGo to previous message
Tim Small is currently offline  Tim Small
Messages: 24
Registered: April 2011
Junior Member
On 03/08/11 07:55, me@free-minds.net wrote:
> Hello,
> We have on our Server about 17VZs installed and running. Most of them run
> simmilar cron jobs, e.g. apticron and this causes very high load at night.
>
> Is there any best practise that we can use to reduce the load with these
> jobs? I tought about running these cronjobs from outside with vzctl exec
> (so make a cron at the host and just start the programms manually) and run
> only 1 job at once.
>
> In general: Is there a best practise to run things in every VZ and not
> produce high load?
>
>

I patched the openvz scripts to randomise the start-time of these
scripts across containers. One of my clients had the same problem - it
showed up quite clearly using the openvzcpu munin plugin which I wrote...

I'll dig out the patch later. Bug me if I haven't within 24 hours.

Tim.

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