Hi Gilberto, What you need to specify where to run each service is the Failover Domain of each service.
Some info: http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/5.4/html/Cluster_Administration/s1-config-failover-domain-CA.html http://sources.redhat.com/cluster/wiki/FailoverDomains You have 4 different services, so I would use 2 or 4 different Failover Domains to achieve your objective, depending on the availability of running each of your services in your cluster nodes. First you will need to define de Failover Domains: Failover Domain X Restricted domain: yes Ordered: yes Node A - Priority 1 Node B - Priority 2 And so on. Then you'll need to set the Failover Domain for each of the services, for example: Service 1 -> FailoverDomain1 Service 2 -> FailoverDomain2 Service 3 -> FailoverDomain3 Service 4 -> FailoverDomain4 This can be all done with system-config-cluster, but using a resource made by yourself into cluster.conf will give you some errors. It should be similar to this: <rm> <failoverdomains> <failoverdomain name="failoverdomain1" ordered="1" restricted="1"><failoverdomainnode name="ulises" priority="1"/><failoverdomainnode name="aquiles" priority="2"/></failoverdomain> <failoverdomain name="failoverdomain2" ordered="1" restricted="1"><failoverdomainnode name="caligula" priority="1"/><failoverdomainnode name="ulises" priority="2"/></failoverdomain> </failoverdomains> <resources> [I think you need your definition of your myapp resources here] <myapp name="res11" myapp_home="/opt/myapp_11" shutdown_wait="0"/> [...and so on] </resources> [and then start the definition of your services] <service autostart="0" exclusive="0" name="srv11"> <myapp ref="res11"/> </service> [... and so on] </rm> Another question is: is your script usable by CMAN? I hope this helps. Cheers, Rafael El lun, 07-12-2009 a las 18:41 +0100, gilberto migliavacca escribió: > Hi > > I'm a newbie in the red hat cluster configuration and > I don't know if this is the right mailing list for my > question. > > I have to use my own resource agent script and I have > to say to the cluster that the related service must be > run just on single server. > > I other words I want to drive 2 nodes with 4 instances > of the same application (2 instances per node). > > the infostructure is somehting like: > > node_1 > /opt/myapp_11/bin/myapp.sh > /opt/myapp_12/bin/myapp.sh > node_2 > /opt/myapp_21/bin/myapp.sh > /opt/myapp_22/bin/myapp.sh > > > My idea is to create 4 services in the /etc/cluster/cluster.conf > but I don't know how to related the service with a > given machine and a related path on the given machine > > > for my understanding I think I cannot use the Conga GUI (neither > the system-config-cluster) and I have to edit manually the > /etc/cluster/cluster.conf > > could anyone help to write the XML section in the <rm> tag? > > something like > > <rm> > <service autostart="0" exclusive="0" name="srv11"> > <myapp name="res11" > myapp_home="/opt/myapp_11" > shutdown_wait="0"/> > </service> > <service autostart="0" exclusive="0" name="srv12"> > <myapp name="res12" > myapp_home="/opt/myapp_12" > shutdown_wait="0"/> > </service> > <service autostart="0" exclusive="0" name="srv21"> > <myapp name="res21" > myapp_home="/opt/myapp_21" > shutdown_wait="0"/> > </service> > <service autostart="0" exclusive="0" name="srv22"> > <myapp name="res22" > myapp_home="/opt/myapp_22" > shutdown_wait="0"/> > </service> > </rm> > > > As you can see I don't know how to specify the node > > thanks in advance > > gilberto > > -- > Linux-cluster mailing list > Linux-cluster@redhat.com > https://www.redhat.com/mailman/listinfo/linux-cluster -- Rafael Micó Miranda -- Linux-cluster mailing list Linux-cluster@redhat.com https://www.redhat.com/mailman/listinfo/linux-cluster
