topic Re: Package Star in Operating System - HP-UX

Package Star

Stefano_73 — Fri, 02 Apr 2004 03:31:03 GMT

Hi, i work with HP-UX 11.00 with MC/ServiceGuard and i would know if is posible at the start of the cluster (automatic after a reboot ro manual with cmruncl command) configure the order of the package to start.

Best Regards
Stefano

Re: Package Star

G. Vrijhoeven — Fri, 02 Apr 2004 03:50:39 GMT

Hi Stefano,

To autostart the cluster adjust:

/etc/rc.config.d/cmcluster:
change
AUTOSTART_CMCLD: If set to 1, the node will attempt to
# join its CM cluster automatically when
# the system boots.
# If set to 0, the node will not attempt
# to join its CM cluster.
#

To make sure a package is startable:

edit package config file:
# Enter the value for AUTO_RUN. Possible values are YES and NO.
# The default for AUTO_RUN is YES. When the cluster is started the
# package will be automatically started. In the event of a failure the
# package will be started on an adoptive node. Adjust as necessary.
#
# AUTO_RUN replaces obsolete PKG_SWITCHING_ENABLED.

AUTO_RUN YES

I do not know how to alter the start order. I thought all packages are started at once.

HTH,

Gideon

Re: Package Star

G. Vrijhoeven — Fri, 02 Apr 2004 03:53:08 GMT

Hi,

You could alter a package control file.
Add a script to customer defined run command that check if the package it depents on is running before executing next start command.

PS. This will create unwanted dependenties.

HTH,

Gideon

Re: Package Star

Elmar P. Kolkman — Fri, 02 Apr 2004 05:55:51 GMT

You could also add a command to the user_run_commands that starts the packages depending on the current package... If you then only make the first package autorun, the flow is guaranteed.

A better way might be to disable the autostart for all packages and create an init script that starts (and stops) the packages in the right order.

Re: Package Star

SS_6 — Sat, 03 Apr 2004 20:23:09 GMT

Easy stuff. I would recommend not to touch any scripts and do the following.
If you do not want to start cluster after booting of system.
#vi /etc/rc.config.d/cmcluster and change autostart value to 0 (Zero)
Now do following to join node to cluster
#cmrunnode -n hostname
(You can also do cmruncl but it will start everything at once)
If you want to mount all file systems by cluster but do not want to start any start stop script do the following.
#touch /etc/cmcluster/debug
#cmrunpkg -n nodename -v packagename
And you can manually start/stop all applications. Remove the debug file if you want cluster to mount as well as start applications.
If you start cluster with above commands you will also have to enable package switch otherwise failover will not occur.
#cmmodpkg -e packagename
#cmviewcl or cmviewcl -v to see all configuration.
Remove debug file once you are done with troubleshooting.

Re: Package Star

Stephen Doud — Mon, 05 Apr 2004 07:53:43 GMT

Yes - package start order can be made to work.

See this document:

UMCSGKBRC00008166
TITLE: Dependent packages, can the order of package startup be controlled?

.SD.

Re: Package Star

Stefano_73 — Mon, 05 Apr 2004 08:17:52 GMT

Hi, were I found This document? Have you a link?

Thanks
Stefano

Re: Package Star

Marvin Strong — Mon, 05 Apr 2004 11:08:00 GMT

http://www1.itrc.hp.com/service/cki/search.do?category=c0&mode=text&searchString=UMCSGKBRC00008166+&searchCrit=allwords&docType=Security&docType=Patch&docType=EngineerNotes&docType=BugReports&docType=Hardware&docType=ReferenceMaterials&docType=ThirdParty&search.x=30&search.y=7

hopefully that link will work.
If not, click site map, serach technical knowledge database, and paste in the document ID, from above.