> You (Gary Mills) wrote: > > Has anyone else already done this? > > That one thing doesn't necessarily imply the other...
You are correct. > What do you mean by > > "Are you saying that Solaris cluster doesn't > handle RPC?" I assumed it didn't, as NIS uses RPC. I did notice that there is an HA agent for NFS, which also uses RPC. However, NFS does used a fixed port. This implies that the agent needs to manage only one port, and that the client doesn't need to contact rpcbind to determine that port. > The Framework is "agnostic" to the services you want > to make HA. One thing > needed is a Service that by itself keeps state of all > changes done (if these > infos are important!) on a shared-storege based > architecture, so that after a > restart of the service on the other node the > "current" state of information > can be achieved. And it needs to be "movable", which > implies, that it should > NOT derive it's own identity by asking "hostname" or > some such "thing" in > order to derive "data-signing-identity-info". Thanks. Those are good things to keep in mind. > And as NIS in itself has an idea of HA (master -> > slave setup!) there is NO > immediate need for making the master in itself HA. > All NIS installs can > survive an outage of hours without really affecting > the services, that's why > it seems, that noone up to now really needed to > implement an HA-NIS service. Yes, most of our NIS clients broadcast on the computer room network to bind to a server on the same network. A few of them, however, are on separate networks where NIS broadcasts don't work. They have the IP addresses of our NIS servers in order to bind to one of them. If the NIS server is on a cluster, they would need to bind to the logical hostname, wouldn't they? I haven't looked into creating our own HA agents yet, but I understand that they need to know the TCP or UDP ports for the service. Can I specify a range of ports for an RPC service? Can more than one agent share the same port range? How do I permit access to rpcbind through the logical hostname? -- This message posted from opensolaris.org _______________________________________________ ha-clusters-discuss mailing list ha-clusters-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/ha-clusters-discuss
