[Users] Is there a way to force remove a host?

[Itamar Heim]

On 09/24/2012 11:53 PM, Jason Brooks wrote:
> On Mon 24 Sep 2012 01:24:44 PM PDT, Itamar Heim wrote:
>> On 09/24/2012 08:49 PM, Dominic Kaiser wrote:
>>> This conversation is fine but if I want to force remove no matter what I
>>> should be able to from the GUI.  The nodes are no longer available I
>>> want to get rid of them ovirt does not let me.  I can delete from
>>> database but why not from the GUI?  I am sure others may run into this
>>> problem as well.
>>
>> what happens to the status of the host when you right click on the
>> host and specify you confirm it was shutdown?
>
> I'm having this same issue. Confirming the host is shut down doesn't
> make a difference.
>
> I'm seeing lots of "Failed to GlusterHostRemoveVDS, error = Unexpected
> exception" errors in my engine log that seem to correspond w/ the failed
> remove host attempts.

is cluster defined as gluster as well?
what is the status of the host after you confirm shutdown?
any error on log on this specific command?

shireesh - not sure if relevant to this flow, but need to make sure 
removing a host from the engine isn't blocked on gluster needing to 
remove it from the gluster cluster if the host is not available any 
more, or last host in gluster cluster?

>
>
>>
>>>
>>> Dominic
>>>
>>> On Sep 22, 2012 4:19 PM, "Eli Mesika" <emesika at redhat.com
>>> <mailto:emesika at redhat.com>> wrote:
>>>
>>>
>>>
>>>     ----- Original Message -----
>>>      > From: "Douglas Landgraf" <dougsland at redhat.com
>>>     <mailto:dougsland at redhat.com>>
>>>      > To: "Dominic Kaiser" <dominic at bostonvineyard.org
>>>     <mailto:dominic at bostonvineyard.org>>
>>>      > Cc: "Eli Mesika" <emesika at redhat.com
>>>     <mailto:emesika at redhat.com>>, users at ovirt.org
>>>     <mailto:users at ovirt.org>, "Robert Middleswarth"
>>>     <robert at middleswarth.net <mailto:robert at middleswarth.net>>
>>>      > Sent: Friday, September 21, 2012 8:12:27 PM
>>>      > Subject: Re: [Users] Is there a way to force remove a host?
>>>      >
>>>      > Hi Dominic,
>>>      >
>>>      > On 09/20/2012 12:11 PM, Dominic Kaiser wrote:
>>>      > > Sorry I did not explain.
>>>      > >
>>>      > > I had tried to remove the host and had not luck
>>> troubleshooting it.
>>>      > >  I
>>>      > > then had removed it and used it for a storage unit reinstalling
>>>      > > fedora
>>>      > > 17.  I foolishly thought that I could just remove the host
>>>      > > manually.
>>>      > >  It physically is not there. (My fault I know)  Is there a
>>> way that
>>>      > > you know of to remove a host brute force.
>>>      > >
>>>      > > dk
>>>      >
>>>      > Fell free to try the below script (not part of official
>>> project) for
>>>      > brute force:
>>>      >
>>>      > (from the engine side)
>>>      > # yum install python-psycopg2 -y
>>>      > # wget
>>>      >
>>>
>>> https://raw.github.com/dougsland/misc-rhev/master/engine_force_remove_Host.py
>>>
>>>
>>>      > # (edit the file and change the db password)
>>>      > # python ./engine_force_remove_Host.py
>>>
>>>     Hi , had looked in the Python script you had provided:
>>>     First, I must say that handling the database directly may leave DB
>>>     in inconsistent state, therefore, if there is no other option, the
>>>     database should be backed up prior to this operation.
>>>     In addition, I do not like the execution of the SQL statements in
>>>     the script.
>>>     There is a SP called DeleteVds(v_vds_id UUID) and you should use
>>>     that since it encapsulates all details.
>>>     For example, your script does not handle permission clean-up as the
>>>     SP does and therefore leaves garbage in the database.
>>>     In addition, a failure in your script may leave database in
>>>     inconsistent state while the SP is executed in one transaction and
>>>     will leave DB consistent.
>>>     So, in short I would prefer in this case that the relevant SP will
>>>     do the clean-up since this is the one that is used by the code and
>>>     that insures (at least I hope so) , that all related entities are
>>>     removed as well.
>>>
>>>
>>>      >
>>>      > Thanks
>>>      >
>>>      > --
>>>      > Cheers
>>>      > Douglas
>>>      >
>>>      >
>>>
>>>
>>>
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>>> http://lists.ovirt.org/mailman/listinfo/users
>>>
>>
>>
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>
>
> --
>
> @jasonbrooks