[libvirt] [PATCH 1/2] qemu: Add support for changing timeout value to open unix monitor socket

Martin Kletzander mkletzan at redhat.com
Thu Jan 16 15:49:11 UTC 2014


Ping? Can we at least change the default [2/2] or should I send a v2
for that one?

Martin

On Fri, Jan 10, 2014 at 04:27:40PM +0100, Martin Kletzander wrote:
> On Fri, Jan 10, 2014 at 02:18:37PM +0000, Daniel P. Berrange wrote:
> > On Thu, Jan 09, 2014 at 09:22:05AM +0100, Martin Kletzander wrote:
> > > From: Pavel Fux <pavel at stratoscale.com>
> > >
> > > Adding an option to change monitor socket opening timeout
> > > the current default is 3 seconds and in some cases it's not enough
> > >
> > > Signed-off-by: Pavel Fux <pavel at stratoscale.com>
> > > Signed-off-by: Martin Kletzander <mkletzan at redhat.com>
> > > ---
> > >
> > > Notes:
> > >     I modified the description in the config file, made the use of the
> > >     opaque argument in qemuMonitorOpen and rebased it on current master.
> > >
> > >     I also added the config options in augeas test to make the 'make
> > >     check' pass.
> >
> > IMHO we shouldn't add this config parameter. This kind of parameter is
> > basically saying "our code doesn't work by default, set this to fix it"
> > which is just horrible behaviour. Further more an admin won't even find
> > out about this until the worst possible time. Just increase the default
> > timeout if we need to. Even better would be to figure out how we can
> > properly fix this to avoid any need for timeout at all.
> >
>
> The same can be said about e.g. audio-related options in the config
> file or (when going to extremes) debug logs.  Yes, there might be
> problems and this is a way how admins/users can check where a
> particular problem might be.  And the very fact that we need to change
> this variable now does in fact proves that this might need another
> change in the future.  Having this particular value configurable is
> merely a _option_ for admins/users and I see no drawback at all in it.
>
> As Rich suggested (and Cole copied), check out the number of hits for:
> https://www.google.co.uk/search?q="monitor+socket+did+not+show+up"
>
> Many of them are related to the domains having managed-save, but since
> nobody looked for a root cause of it (as I know of), this might be
> related to this very problem.
>
> Does this mean ACK to [2/2] and NACK to [1/2] then?
>
> Martin
>
> P.S.: I also forgot to mention that this might most probably resolve
> these bugs:
>
> https://bugzilla.redhat.com/show_bug.cgi?id=892273
> https://bugzilla.redhat.com/show_bug.cgi?id=895901
> https://bugzilla.redhat.com/show_bug.cgi?id=987088
> https://bugzilla.redhat.com/show_bug.cgi?id=1051364
>
> > Regards,
> > Daniel
> > --
> > |: http://berrange.com      -o-    http://www.flickr.com/photos/dberrange/ :|
> > |: http://libvirt.org              -o-             http://virt-manager.org :|
> > |: http://autobuild.org       -o-         http://search.cpan.org/~danberr/ :|
> > |: http://entangle-photo.org       -o-       http://live.gnome.org/gtk-vnc :|
> >
> > --
> > libvir-list mailing list
> > libvir-list at redhat.com
> > https://www.redhat.com/mailman/listinfo/libvir-list



> --
> libvir-list mailing list
> libvir-list at redhat.com
> https://www.redhat.com/mailman/listinfo/libvir-list
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 836 bytes
Desc: Digital signature
URL: <http://listman.redhat.com/archives/libvir-list/attachments/20140116/7af685bf/attachment-0001.sig>


More information about the libvir-list mailing list