On 28/01/10 10:06, Dietmar Maurer wrote: > > >> -----Original Message----- >> From: Christine Caulfield [mailto:[email protected]] >> Sent: Donnerstag, 28. Jänner 2010 10:49 >> To: Dietmar Maurer >> Cc: [email protected] >> Subject: Re: [Openais] quorum service question >> >> On 28/01/10 09:38, Dietmar Maurer wrote: >>>>>>> But who calls 'cman_tool version' to actually sync the config? >>>>>> >>>>>> You do ;-) >>>>> >>>>> Really? I have to connect to each node and call 'cman_tool >> version'? >>>> >>>> No, just one one node. >>> >>> But what if the cluster is partinioned? >>> >> >> If the cluster is partitioned then it won't work. But then neither >> would >> ccsd so you haven't lost anything. Nearly all partitions are >> network-related anyway, so there would be no automatic way to do it. > > Well, I thought that I can use a distributed filesystem. I have > a simple distributed filesystem using CPG and fuse. Puting the config > file on that filesystem seems to be much easier? >
But that can't work. corosync (when using cman) needs cluster.conf to start up. So if the filesystem depends on corosync you have a catch-22 situation: the filesystem can't be mounted because corosync isn't running and corosync can't start because the filesystem holding its configuration isn't mounted. This is why cluster.conf is always read from the local disk. It's the only thing guaranteed to be there at the time. There are ways of holding configuration in LDAP but they are not very mature at the moment. A simple distributed filesystem sounds interesting though. Is it generally available ? Chrissie _______________________________________________ Openais mailing list [email protected] https://lists.linux-foundation.org/mailman/listinfo/openais
