[ovirt-users] Can HA Agent control NFS Mount?

[Bob Doolittle]

Specifically, if do the following:

  * Enter global maintenance (hosted-engine --set-maintenance-mode
    --mode=global)
  * init 0 the engine
  * systemctl stop ovirt-ha-agent ovirt-ha-broker libvirtd vdmsd


and then run "sanlock client status" I see:

# sanlock client status
daemon c715b5de-fd98-4146-a0b1-e9801179c768.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 18eeab54-e482-497f-b096-11f8a43f94f4:1:/rhev/data-center/mnt/xion2\:_export_vm_he1/18eeab54-e482-497f-b096-11f8a43f94f4/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


Waiting a few minutes does not change this state.

The earlier data I shared which showed HostedEngine was with a different 
test scenario.

-Bob

On 06/18/2014 07:53 AM, Bob Doolittle wrote:
>
> I see I have a very unfortunate typo in my previous mail. As supported 
> by the vm-status output I attached, I had set --mode=global (not none) 
> in step 1.
>
> I am not the only one experiencing this. I can reproduce it easily. It 
> appears that shutting down vdsm causes the HA services to incorrectly 
> think the system has come out of Global Maintenance and restart the 
> engine.
>
> -Bob
>
> On Jun 18, 2014 5:06 AM, "Federico Simoncelli" <fsimonce at redhat.com 
> <mailto:fsimonce at redhat.com>> wrote:
>
>     ----- Original Message -----
>     > From: "Bob Doolittle" <bob at doolittle.us.com
>     <mailto:bob at doolittle.us.com>>
>     > To: "Doron Fediuck" <dfediuck at redhat.com
>     <mailto:dfediuck at redhat.com>>, "Andrew Lau" <andrew at andrewklau.com
>     <mailto:andrew at andrewklau.com>>
>     > Cc: "users" <users at ovirt.org <mailto:users at ovirt.org>>,
>     "Federico Simoncelli" <fsimonce at redhat.com
>     <mailto:fsimonce at 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
>     <http://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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