Re: [PATCH] Qemu: migration: Not bind RAM info with active migration status

On Tue, Jul 28, 2020 at 07:35:11PM +0800, zhukeqian wrote: > > > On 2020/7/28 18:32, Daniel P. Berrangé wrote: >> On Wed, Jul 15, 2020 at 02:18:01PM +0800, Keqian Zhu wrote: >>> For that Qemu supports returning incoming migration info since its commit >>> 65ace0604551 (migration: add postcopy total blocktime into query-migrate), >>> which may contains active status, but without RAM info. Drop this binding >>> relationship check in libvirt. >> >> I'm not clear from this description what the actual bug in libvirt >> is ? What currently fails in libvirt that this patch fixes ? >> > When query migration status, libvirt assumes that when migration status is active, > then RAM info must be set. However qemu has changed this assumption, so libvirt will > report "migration was active, but no RAM info was set" when query migration info. So you're trying to make it possible to query migration stats on the destination host ? IOW, this is a new feature, rather than a bug fix ?

Regards, Daniel