Is it possible to set up a hierarchy of services, in the same way that a service is made up of individual resources? I'm trying to set up a clustered web server using RHCS 5 on CentOS 5.2, with the latest versions from the "upstream provider's" production release. The cluster provides several web applications, each of which has it's own resources that Apache doesn't need to know about directly. Each application relies on Apache as a presentation layer. I don't want to make the individual applications' dependencies separate resources within a single "Apache" service, because that makes management difficult. For example, is it possible to create a structure like: Service: Apache Private Resource: IP address Private Resource: GFS Vol1 Shared Service: Wiki Shared Service: SVN Shared Service: Calendar Service: Wiki Private Resource: GFS Vol2 Private Resource: MySQL "wiki" instance Service: SVN Private Resource: MySQL "svn" instance Private Resource: GFS Vol3 Service: Calendar (no resources beyond apache) Note that resources like "GFS Vol2" and "MySQL wiki instance" are assigned to the "Wiki" service, not directly to the "Apache" service. The Apache service sees "Wiki" as a resource. With this kind of structure, I could administratively disable the "Wiki" service without causing the other web applications to restart or relocate. However, if a resource that the Wiki requires fails on the active web server (for example, GFS Vol 2), the the standard failover policy would apply...the Wiki service would restart and if that is unsuccessful, then the Apache service (and it's dependencies--Wiki, SVN, Calendar, IP address, GFS Vol1) would relocate. Is there any way to set up this kind of structure with RHCS? Thanks, Mark ----- Mark Bergman http://wwwkeys.pgp.net:11371/pks/lookup?op=get&search=bergman%40merctech.com -- Linux-cluster mailing list Linux-cluster@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/linux-cluster
