On Tue, Jul 30, 2019 at 11:05:25AM +0200, Christophe de Dinechin wrote: > > Daniel P. Berrangé writes: > > > This is what all the driver refactoring I've done has been about > > enabling. > > > > We gain new daemons for each driver, for the primary virt drivers: > > > > virtlibxld > > virtxend? > > > virtlxcd > > virtqemud > > virtvboxd > > virtvzd > > > > And again for the secondary drivers > > > > virtinterfaced > > virtnetworkd > > virtnodedevd > > virtnwfilterd > > virtsecretd > > virtstoraged > > > > Finally to support IP connectivity, and also the legacy lbivirtd UNIX > > domain socket (for the old libvirt remote driver SSH tunnelling): > > > > virtproxyd > > > > The the sake of facilitating upgrades, the existing libvirtd still > > exists and works the same way it always has. > > > > You either run libvirtd, or you run the per-driver daemons, never both. > > What happens if you run both? > (I'll try to figure out by reviewing the rest of the code and/or testing) The drivers acquire an exclusive lock, causing the 2nd daemon to fail to startup $ ./src/libvirtd & $ ./src/virtqemud 2019-07-30 09:36:34.339+0000: 22809: info : libvirt version: 5.6.0 2019-07-30 09:36:34.339+0000: 22809: info : hostname: dhcp-16-132.lcy.redhat.com 2019-07-30 09:36:34.339+0000: 22809: error : virPidFileAcquirePath:376 : Failed to acquire pid file '/run/user/501/libvirt/qemu/run/driver.pid': Resource temporarily unavailable 2019-07-30 09:36:34.339+0000: 22809: error : virStateInitialize:688 : Initialisation of QEMU state driver failed: Failed to acquire pid file '/run/user/501/libvirt/qemu/run/driver.pid': Resource temporarily unavailable 2019-07-30 09:36:34.339+0000: 22809: error : daemonRunStateInit:821 : Driver state initialisation failed The same works the other way around too $ ./src/virtqemud & $ ./src/libvirtd 2019-07-30 09:37:45.398+0000: 23109: info : libvirt version: 5.6.0 2019-07-30 09:37:45.398+0000: 23109: info : hostname: dhcp-16-132.lcy.redhat.com 2019-07-30 09:37:45.398+0000: 23109: error : virPidFileAcquirePath:376 : Failed to acquire pid file '/run/user/501/libvirt/qemu/run/driver.pid': Resource temporarily unavailable 2019-07-30 09:37:45.398+0000: 23109: error : virStateInitialize:688 : Initialisation of QEMU state driver failed: Failed to acquire pid file '/run/user/501/libvirt/qemu/run/driver.pid': Resource temporarily unavailable 2019-07-30 09:37:45.398+0000: 23109: error : daemonRunStateInit:821 : Driver state initialisation failed the systemd unit files also have Conflicts rules which should prevent even getting that far Regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list
