2010/6/10 Stefan Förster <cite+pacema...@incertum.net>: > Follow-up to my own posting: > > * Stefan Foerster <cite+pacema...@incertum.net>: >> I have a number of primitives and a master/slave resource which need >> to be started in a given order. At first I was thinking about using a >> "group", but as things go with groups, seemingly independent resources >> might start to work if one of the group's resources fails (you cant >> specify that resources are independent of each other), and AFAIK you >> can't have groups in other groups (I might be wrong on both counts - >> if so, please let me know). >> >> Now, what I've come up with is this: >> >> >> <rsc_order id="order-DRBD_IP_FS_MySQL"> >> <resource_set id="order-set-DRBD" action="promote"> >> <resource_ref id="ms-DRBD_shared"/> >> </resource_set> >> <resource_set id="order-set-FS-and-IP" sequential="false" action="start"> >> <resource_ref id="prim-FS_shared"/> >> <resource_ref id="prim-Failover_IP"/> >> </resource_set> >> <resource_set id="order-set-mysql" sequential="false" action="start"> >> <resource_ref id="prim-MySQL_db_test"/> >> <resource_ref id="prim-MySQL_db_fax"/> >> <resource_ref id="prim-MySQL_db_syslog"/> >> <resource_ref id="prim-MySQL_db_nagios"/> >> <resource_ref id="prim-MySQL_db_wiki"/> >> </resource_set> >> </rsc_order> >> >> Obviously, this works very well for starting the resources - and does >> absolutely nothing for stopping them (e.g. if you migrate them to >> another node). > > I have verified that this does indeed not stop resources in the > correct order.
Someone else reported this recently too. http://developerbugs.linux-foundation.org/show_bug.cgi?id=2434 Looks like sets have some issues. I'll be looking into it today. > I always thought ordering constraints applied in both > directions, starting AND stopping - am I wrong here? You are correct _______________________________________________ Pacemaker mailing list: Pacemaker@oss.clusterlabs.org http://oss.clusterlabs.org/mailman/listinfo/pacemaker Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://developerbugs.linux-foundation.org/enter_bug.cgi?product=Pacemaker
