On Thu, 2008-11-13 at 15:28 +0100, Mauro Casiraghi wrote: > If i have two or more services how can set dependency for the services > using Redhat Cluster Suite?? > > For example if i have service A B end C how can set those dependency: > > B depend from A and C depend from B > > In this case to stop service group A i must stop before C and B > > What is the cluster.conf setting ?? That depends. Starting services is done in the "right" order internally using the 'depend=' service attribute, but it's done backwards for 'stop' (e.g. stopping A will cause 'dependent' services to subsequently stop, not stop before A). Rgmanager has an event-action processor you can use to make this work, (it's not a typical dependency engine, though). You'd have to: (a) codify the actions necessary (b) enable central_processing (c) set up an event trigger to catch an event *before* a service transitions and make some decisions. A-+->B | +->C ...should be easy... A->B->C ...would be more difficult. There's a (very) experimental dependency engine / transition calculator / etc. in the master branch of git which uses an A* search, but it's not likely that we will be integrating it... -- Lon -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
