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

Itamar Heim iheim at redhat.com
Mon Sep 24 20:24:44 UTC 2012


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?

>
> 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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