Re: [Users] [vdsm] Migration failed (previous migrations succeded)

On Feb 1, 2014, at 18:25 , Itamar Heim <iheim(a)redhat.com&gt; wrote: > On 01/31/2014 09:30 AM, Sven Kieske wrote: >> Hi, >> >> is there any documentation regarding all >> allowed settings in the vdsm.conf? >> >> I didn't find anything related in the rhev docs > > that's a question for vdsm mailing list - cc-ing… the vdsm.conf has a description for each parameter…just search for all containing "migration":) we do want to expose some/most/all of them in UI/REST eventually, the "migration downtime" setting is there now in 3.4, but others are missing Thanks, michal > >> >> Am 30.01.2014 21:43, schrieb Itamar Heim: >>> On 01/30/2014 10:37 PM, Markus Stockhausen wrote: >>>>>> Von: Itamar Heim [iheim(a)redhat.com] >>>>>> Gesendet: Donnerstag, 30. Januar 2014 21:25 >>>>>> An: Markus Stockhausen; ovirt-users >>>>>> Betreff: Re: [Users] Migration failed (previous migrations succeded) >>>>>> >>>>>> >>>>>> Now I' getting serious problems. During the migration the VM was >>>>>> doing a rather slow download at 1,5 MB/s. So the memory changed >>>>>> by 15 MB per 10 seconds. No wonder that a check every 10 seconds >>>>>> was not able to see any progress. Im scared what will happen if I >>>>>> want to migrate a medium loaded system runing a database. >>>>>> >>>>>> Any tip for a parametrization? >>>>>> >>>>>> Markus >>>>>> >>>>> >>>>> what's the bandwidth? default is up to 30MB/sec, to allow up to 3 VMs to >>>>> migrate on 1Gb without congesting it. >>>>> you could raise that if you have 10GB, or raise the bandwidth cap and >>>>> reduce max number of concurrent VMs, etc. >>>> >>>> My migration network is IPoIB 10GBit. During our tests only one VM >>>> was migrated. Bandwidth cap or number of concurrent VMs has not >>>> been changed after default install. >>>> >>>> Is migration_max_bandwidth in /etc/vdsm/vdsm.conf still the right place? >>> >>> probably >>> >>>> And what settings do you suggest? >>>