[ovirt-users] Safe to upgrade HE hosts from GUI?

[Simone Tiraboschi]

On Fri, Jul 29, 2016 at 11:35 AM, Wee Sritippho <wee.s at forest.go.th> wrote:
> On 29/7/2559 15:50, Simone Tiraboschi wrote:
>>
>> On Fri, Jul 29, 2016 at 6:31 AM, Wee Sritippho <wee.s at forest.go.th> wrote:
>>>
>>> On 28/7/2559 15:54, Simone Tiraboschi wrote:
>>>
>>> On Thu, Jul 28, 2016 at 10:41 AM, Wee Sritippho <wee.s at forest.go.th>
>>> wrote:
>>>>
>>>> On 21/7/2559 16:53, Simone Tiraboschi wrote:
>>>>
>>>> On Thu, Jul 21, 2016 at 11:43 AM, Wee Sritippho <wee.s at forest.go.th>
>>>> wrote:
>>>>
>>>>> Can I just follow
>>>>>
>>>>> http://www.ovirt.org/documentation/how-to/hosted-engine/#upgrade-hosted-engine
>>>>> until step 3 and do everything else via GUI?
>>>>
>>>> Yes, absolutely.
>>>>
>>>>
>>>> Hi, I upgrade a host (host02) via GUI and now its score is 0. Restarted
>>>> the services but the result is still the same. Kinda lost now. What
>>>> should I
>>>> do next?
>>>>
>>> Can you please attach ovirt-ha-agent logs?
>>>
>>>
>>> Yes, here are the logs:
>>> https://app.box.com/s/b4urjty8dsuj98n3ywygpk3oh5o7pbsh
>>
>> Thanks Wee,
>> your issue is here:
>> MainThread::ERROR::2016-07-17
>>
>> 14:32:45,586::storage_server::143::ovirt_hosted_engine_ha.lib.storage_server.StorageServer::(_validate_pre_connected_path)
>> The hosted-engine storage domain is already mounted on
>>
>> '/rhev/data-center/mnt/glusterSD/host02.ovirt.forest.go.th:_hosted__engine/639e689c-8493-479b-a6eb-cc92b6fc4cf4'
>> with a path that is not supported anymore: the right path should be
>>
>> '/rhev/data-center/mnt/glusterSD/host01.ovirt.forest.go.th:_hosted__engine/639e689c-8493-479b-a6eb-cc92b6fc4cf4'.
>>
>> Did you manually tried to avoid the issue of a single entry point for
>> the gluster FS volume using host01.ovirt.forest.go.th:_hosted__engine
>> and host02.ovirt.forest.go.th:_hosted__engine there?
>> This could cause a lot of confusion since the code could not detect
>> that the storage domain is the same and you can end with it mounted
>> twice into different locations and a lot of issues.
>> The correct solution of that issue was this one:
>> https://bugzilla.redhat.com/show_bug.cgi?id=1298693#c20
>>
>> Now, to have it fixed on your env you have to hack a bit.
>> First step, you have to edit
>> /etc/ovirt-hosted-engine/hosted-engine.conf on all your hosted-engine
>> hosts to ensure that the storage field always point to the same entry
>> point (host01 for instance)
>> Then on each host you can add something like:
>>
>> mnt_options=backupvolfile-server=host02.ovirt.forest.go.th:host03.ovirt.forest.go.th,fetch-attempts=2,log-level=WARNING,log-file=/var/log/engine_domain.log
>>
>> Then check the representation of your storage connection in the table
>> storage_server_connections of the engine DB and make sure that
>> connection refers to the entry point you used in hosted-engine.conf on
>> all your hosts, you have lastly to set the value of mount_options also
>> here.
>
> Weird. The configuration in all hosts are already referring to host01.

but for sure you have a connection pointing to host02 somewhere, did
you try to manually deploy from CLI connecting the gluster volume on
host02?

> Also, in the storage_server_connections table:
>
> engine=> SELECT * FROM storage_server_connections;
>                   id                  | connection                |
> user_name | password | iqn | port | portal | storage_type | mount_options |
> vfs_type
>  | nfs_version | nfs_timeo | nfs_retrans
> --------------------------------------+------------------------------------------+-----------+----------+-----+------+--------+--------------+---------------+----------
> -+-------------+-----------+-------------
>  bd78d299-c8ff-4251-8aab-432ce6443ae8 |
> host01.ovirt.forest.go.th:/hosted_engine |           | |     |      | 1
> |            7 |               | glusterfs
>  |             |           |
> (1 row)
>
>
>>
>> Please tune also the value of network.ping-timeout for your glusterFS
>> volume to avoid this:
>>   https://bugzilla.redhat.com/show_bug.cgi?id=1319657#c17
>
>
> --
> Wee
>