On Tue, Sep 19, 2017 at 11:41 AM, Alex K <rightkickt...@gmail.com> wrote:
> Hi again, > > I performed a different test by isolating one host (say host A) through > removing all its network interfaces (thus power management through IPMI was > also not avaialble). > The VMs (with VM lease enabled) were successfully restarted to another > host. > When connecting back the host A, the cluster performed a power management > and the host became a member of the cluster. > The VMs that were running on the host A were found "paused", which is > normal. > After 15 minutes I see that the VMs at host A are still in "paused" state > and I would expect that the cluster should decide at some point to shutdown > the paused VMs and continue with the VMs that are already running at other > hosts. > > Is this behavior normal? > I believe it is not the expected behavior - the VM should not stay in paused state when its lease expires. But we know about this, see comment 9 in [1]. [1] https://bugzilla.redhat.com/show_bug.cgi?id=1459865 > > Thanx, > Alex > > On Tue, Sep 19, 2017 at 10:18 AM, Alex K <rightkickt...@gmail.com> wrote: > >> Hi All, >> >> Just completed the tests and it works great. >> VM leases is just what I needed. >> >> Thanx, >> Alex >> >> On Tue, Sep 19, 2017 at 10:16 AM, Yaniv Kaul <yk...@redhat.com> wrote: >> >>> >>> >>> On Tue, Sep 19, 2017 at 1:00 AM, Alex K <rightkickt...@gmail.com> wrote: >>> >>>> Enabling VM leases could be an answer to this. Will test tomorrow. >>>> >>>> >>> Indeed. Let us know how it worked for you. >>> >>> >>>> Thanx, >>>> Alex >>>> >>>> On Sep 18, 2017 7:50 PM, "Alex K" <rightkickt...@gmail.com> wrote: >>>> >>>> Hi All, >>>> >>>> I have the following issue with the HA behavior of oVirt 4.1 and need >>>> to check with you if there is any work around from your experience. >>>> >>>> I have 3 servers (A, B, C) with hosted engine in self hosted setup on >>>> top gluster with replica 3 + 1 arbiter. All good except one point: >>>> >>>> The hosts have been configured with power management using IPMI (server >>>> iLO). >>>> If I disconnect power from one host (say C) (or disconnect all network >>>> cables of the host) the two other hosts go to a loop where they try to >>>> verify the status of the host C by issuing power management commands to the >>>> host C. Since power of host is off the server iLO does not respond on the >>>> network and the power management of host C fails, leaving the VMs that were >>>> running on the host C in an unknown state and they are never restarted to >>>> the other hosts. >>>> >>>> Is there any fencing option to change this behavior so as if both >>>> available hosts fail to do power management of the unresponsive host to >>>> decide that the host is down and to restart the VMs of that host to the >>>> other available hosts. >>>> >>>> >>> No, this is a bad assumption. Perhaps they are the ones isolated form it? >>> Y. >>> >>> >>>> >>>> I could also add additional power management through UPS to avoid this >>>> issue but this is not currently an option and I am interested to see if >>>> this behavior can be tweaked. >>>> >>>> Thanx, >>>> Alex >>>> >>>> >>>> >>>> _______________________________________________ >>>> Users mailing list >>>> Users@ovirt.org >>>> http://lists.ovirt.org/mailman/listinfo/users >>>> >>>> >>> >> > > _______________________________________________ > Users mailing list > Users@ovirt.org > http://lists.ovirt.org/mailman/listinfo/users > >
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