Single host VM limit when using RBD

2013-01-17 Thread Matthew Anderson
I've run into a limit on the maximum number of RBD backed VM's that I'm able to run on a single host. I have 20 VM's (21 RBD volumes open) running on a single host and when booting the 21st machine I get the below error from libvirt/QEMU. I'm able to shut down a VM and start another in it's

Re: Single host VM limit when using RBD

2013-01-17 Thread Andrey Korolyov
Hi Matthew, Seems to a low value in /proc/sys/kernel/threads-max value. On Thu, Jan 17, 2013 at 12:37 PM, Matthew Anderson matth...@base3.com.au wrote: I've run into a limit on the maximum number of RBD backed VM's that I'm able to run on a single host. I have 20 VM's (21 RBD volumes open)

RE: Single host VM limit when using RBD

2013-01-17 Thread Matthew Anderson
Subject: Re: Single host VM limit when using RBD Hi Matthew, Seems to a low value in /proc/sys/kernel/threads-max value. On Thu, Jan 17, 2013 at 12:37 PM, Matthew Anderson matth...@base3.com.au wrote: I've run into a limit on the maximum number of RBD backed VM's that I'm able to run