Set Package order for shutdown

[John Kelly_3]

What is the simplest way of implementing a specific order for packages to shut down in.
I would like to use cmhaltcl -f but this shuts down packages in the wrong order leaving some with hung nfs mounts.
Although starting up doesn't cause so much of an issue, it would also be preferable for the packages to start in a specified order.
I am using SG 11.17 with LVM VGs. on HP 11.23 ia64.

[Ivan Krastev · Accepted solution]

See kb doc UMCSGKBRC00008166 - Dependent Pkgs: Can the order of package startup be controlled?


regards,
ivan

[John Kelly_3]

OK so this functionality isn't supported. Since I don't really want to change anything except when shutting down the whole cluster, I don't believe there is any SG configuration item I can change that will give this minimal change to the environment. E.g.
Any failover of the main package would not warrant a shutdown of the dependent packages as they will pick up NFS again when it restarts.
Perhaps I will just put in an alias for cmhaltcl -f that shuts the packages down in the required order and then runs /usr/sbin/cmhaltcl.

[Safarali]

Hi Jhon are you using NFS tool kit with yoru serviceguard

Regards
Safar

[John Kelly_3]

The main package exports /usr/sap/trans from hanfs.sh. The 'dependent' packages rely on OS level automount with a 60 second timeout to mount it. I can't see any benefit from bringing the mount of this exported filesystem under package control.

[Sajjad Sahir]

Dear John
U have to shutdown the packages one by one
this is more polite way, please don't shutdown the cluster forcefully it is not good
cmhaltpkg -v -n nodename packagename
then if any volume group is part of the cluster deactivate it then shutdown the cluster.
only u have to deactivate the volume group which is the part of u cluster
understand service guard has the control up to u logical volume.

[John Kelly_3]

Package order is unsuppported other than Dependencies in later versions. This is more complexity that I was looking for. I just wanted a simple means of ordering the start and stop of packages when using cmhaltcl -f
Rather than complicating the start / stop script functions with waits and conditionals, I will simply add a root alias for cmhaltcl -f so that the packages are shutdown in the correct order.