[ClusterLabs] issue

[Ken Gaillot]

On Sun, 2020-11-15 at 21:32 -0800, Reid Wahl wrote:
> ocf:heartbeat:db2inst isn't a resource agent that ClusterLabs
> maintains, so we have no insight into how it works and why it's in
> Started state. I don't know based on the output what resource agent
> db2_db2ins11_db2ins11_QUERYDB is using.
> 
> I recommend that you take a look at the resource agent's monitor
> function and see what it's actually checking. Then you can determine
> why the monitor operation is succeeding, and you can modify the
> function so that the monitor operation will fail when the DB is down.

And make sure that you actually configured a recurring monitor. By
default Pacemaker doesn't care what happens to a resource after it's
started; you need a monitor to periodically check its status in order
to recover it after a failure.

Also, make sure fencing is enabled, configured, and tested. For certain
failure scenarios, such as a failed stop operation or an unreachable
node, fencing is the only safe way to recover.

> On Sun, Nov 15, 2020 at 8:52 AM Guy Przytula <
> guy.przytula at infocura.be> wrote:
> > I have installed latest version of pacemaker on redhat 8
> > I wanted to test it out for a cluster for IBM Db2
> > There is only one issue :
> > I have 2 nodes : nodep and nodes
> > the database/instance resource are primary on nodep
> > if I stop the process (db2) on nodes : it is automatically started
> > : ok
> > now I renamed the startup command, so the process can not startup
> > anymore
> > I see the process is down : but the status of cluster is normal
> > in the screen you can see : msg : no start database ....
> > go to root : execute crm status : all started ....
> > 
> > -- 
> > Best Regards,     Beste Groeten,      Meilleures Salutations
> > Guy Przytula
> >  
> > Tel. GSM : +32 (0)475-33.81.86
> > 
> > Email : Guy Przytula
> > 
> > 
> >                                               
> >                                     
> >                                                                    
> >                                              
> > Infocura - Tel : +32 (0) 478 32 83 54
-- 
Ken Gaillot <kgaillot at redhat.com>