Recent changes in vdsmd startup

[Yaniv Bronheim]

----- Original Message -----
> From: "Itamar Heim" <iheim at redhat.com>
> To: "Yaniv Bronheim" <ybronhei at redhat.com>
> Cc: "VDSM Project Development" <vdsm-devel at lists.fedorahosted.org>, "arch" <arch at ovirt.org>
> Sent: Thursday, October 10, 2013 5:24:40 PM
> Subject: Re: Recent changes in vdsmd startup
> 
> On 10/10/2013 04:32 PM, Yaniv Bronheim wrote:
> > Hey Everybody,
> > FYI, Recently we merged a fix that changes the way vdsmd starts. Before
> > that "service vdsmd start" command performed its main logic in addition to
> > related services manipulation, as configure libvirt service and restart it
> > for example.
> > Now we are trying to avoid that and only alert the user if restart or other
> > operations on related services are required.
> >
> > So now when you perform vdsmd start after clear installation you will see:
> > ~$ sudo service vdsmd restart
> > Shutting down vdsm daemon:
> > vdsm watchdog stop                                         [  OK  ]
> > vdsm: not running                                          [FAILED]
> > vdsm: Running run_final_hooks
> > vdsm stop                                                  [  OK  ]
> > supervdsm start                                            [  OK  ]
> > vdsm: Running run_init_hooks
> > vdsm: Running gencerts
> > hostname: Unknown host
> > vdsm: Running check_libvirt_configure
> > libvirt is not configured for vdsm yet
> > Perform 'vdsm-tool libvirt-configure' before starting vdsmd
> > vdsm: failed to execute check_libvirt_configure, error code 1
> > vdsm start                                                 [FAILED]
> >
> > This asks you to run "vdsm-tool libvirt-configure"
> > After running it you should see:
> >
> > ~$ sudo vdsm-tool libvirt-configure
> > Stopping libvirtd daemon: [  OK  ]
> > libvirt is not configured for vdsm yet
> > Reconfiguration of libvirt is done.
> >
> > To start working with the new configuration, execute:
> > 'vdsm-tool libvirt-configure-services-restart'
> > This will manage restarting of the following services:
> > libvirtd, supervdsmd
> >
> > After performing: 'vdsm-tool libvirt-configure-services-restart' you are
> > ready to start vdsmd again as usual.
> >
> > All those vdsm-tool commands require root privileges, otherwise it'll alert
> > and stop the operation.
> > Over systemd the errors\output can be watched in /var/log/messages
> >
> > Thanks,
> > Yaniv Bronhaim.
> > _______________________________________________
> > Arch mailing list
> > Arch at ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/arch
> >
> 
> how will this affect the following use cases:
> 
> 1. i added a new host to the system via the engine.
> at the end of the installation i expect the host to work without admin
> having to do any operation on the host.
> 
> 2. i update a host to latest vdsm version via the engine.
> at the end of the update i expect the host to be updated without admin
> having to do any operation on the host
> 

Of course it shouldn't effect any of the deploy process. If using the host-deploy, the host-deploy process should take care of stopping, starting and other managing that can be required before starting vdsmd, and it is taking care of.
The prints I copied above are relevant only if user tries to install and start vdsmd manually 

> Thanks,
>     Itamar
>