[libvirt] [PATCH] Don't log qemu monitor output from blockStats

Cole Robinson crobinso at redhat.com
Mon Mar 2 18:57:45 UTC 2009

Daniel P. Berrange wrote:
> On Mon, Mar 02, 2009 at 01:27:33PM -0500, Cole Robinson wrote:
>> The attached patch changes the qemu driver blockStats command to not log
>> qemu monitor output. virt-manager offers an option to continually poll
>> VM disk stats, and if the app is left running for a while with many VMs,
>> this can make the logs huge, for little benefit (a user reported 100 MB
>> with virt-manager left running overnight).
>> The output from the command is still printed with a DEBUG call, so the
>> info isn't completely lost.
> IMHO we should just disable all this logging rather than adding a second
> method. If we need to debug the arg/replies, then libvirtd now have proper
> logging we can turn on/off as needed, without having to dup this via the
> per-VM logfile. So, just rely on VIR_DEBUG() macros instead.

Would the VM logfile then just be for qemu cmdline and stdout messages?

I'm fine with that. I could just replace the MonitorCommand logging with
an INFO call (DEBUG is a bit too verbose to be debugging the occasional
monitor output: 500 lines a second with virt-manager running).


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