Re: [ovirt-users] Can HA Agent control NFS Mount?
Hi,
One by directly using rem_lockspace (since it's the hosted-engine
one)
The hosted engine lockspace protects the ID of the node. Global maintenance only disables
the state machine, but it still reports data to the shared storage. The hosted engine lock
can only be released when the agent is down. If the lock is still there even after you
call service ovirt-ha-agent stop, then it is a bug somewhere.
the other one by stopMonitoringDomain
Shouldn't this be done by VDSM or sanlock when the VM disappears? The lock has to stay
acquired any time the VM is running (independently on the hosted engine services or vdsm)
to protect the VM's data. We can't release a lock for running VM, because some
other host might try to start it and corrupt data by doing it.
Martin
--
Martin Sivák
msivak(a)redhat.com
Red Hat Czech
RHEV-M SLA / Brno, CZ
----- Original Message -----
----- Original Message -----
> From: "Bob Doolittle" <bob(a)doolittle.us.com>
> To: "Doron Fediuck" <dfediuck(a)redhat.com>, "Andrew Lau"
> <andrew(a)andrewklau.com>
> Cc: "users" <users(a)ovirt.org>, "Federico Simoncelli"
<fsimonce(a)redhat.com>
> Sent: Saturday, June 14, 2014 1:29:54 AM
> Subject: Re: [ovirt-users] Can HA Agent control NFS Mount?
>
>
> But there may be more going on. Even if I stop vdsmd, the HA services,
> and libvirtd, and sleep 60 seconds, I still see a lock held on the
> Engine VM storage:
>
> daemon 6f3af037-d05e-4ad8-a53c-61627e0c2464.xion2.smar
> p -1 helper
> p -1 listener
> p -1 status
> s
>
003510e8-966a-47e6-a5eb-3b5c8a6070a9:1:/rhev/data-center/mnt/xion2.smartcity.net\:_export_VM__NewDataDomain/003510e8-966a-47e6-a5eb-3b5c8a6070a9/dom_md/ids:0
> s
>
hosted-engine:1:/rhev/data-center/mnt/xion2\:_export_vm_he1/18eeab54-e482-497f-b096-11f8a43f94f4/ha_agent/hosted-engine.lockspace:0
This output shows that the lockspaces are still acquired. When you put
hosted-engine
in maintenance they must be released.
One by directly using rem_lockspace (since it's the hosted-engine one) and
the other
one by stopMonitoringDomain.
I quickly looked at the ovirt-hosted-engine* projects and I haven't found
anything
related to that.
--
Federico
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