topic Re: RHEL Cluster error in Operating System - Linux

RHEL Cluster error

Fadia Almarei — Mon, 28 Aug 2006 02:46:31 GMT

Dear All

I have two redhat Enterprise Linux AS 4 servers I configured them to be clustered with shared storage,i install the RPM's on both servers and do the configuration of adding nodes and fencing and others, i start the ccsd and cman services on the first server and then ftp the cluster.conf file to the second server,when i try to start the ccsd and cman services on the second server i get the folloing error in the log.

Aug 28 10:28:02 CluServ2 cman: startup succeeded
Aug 28 10:28:07 CluServ2 kernel: CMAN: sendmsg failed: -13
Aug 28 10:28:12 CluServ2 kernel: CMAN: sendmsg failed: -13
Aug 28 10:28:12 CluServ2 kernel: CMAN: No functional network interfaces, leaving cluster
Aug 28 10:28:12 CluServ2 kernel: CMAN: sendmsg failed: -13
Aug 28 10:28:12 CluServ2 kernel: CMAN: we are leaving the cluster.
Aug 28 10:28:12 CluServ2 kernel: WARNING: dlm_emergency_shutdown
Aug 28 10:28:12 CluServ2 kernel: WARNING: dlm_emergency_shutdown
Aug 28 10:28:12 CluServ2 ccsd[31038]: Cluster manager shutdown. Attemping to reconnect...
Aug 28 10:28:33 CluServ2 ccsd[31038]: Unable to connect to cluster infrastructure after 30 seconds.

where is the problem and how to solve it.

Re: RHEL Cluster error

Steven E. Protter — Mon, 28 Aug 2006 08:04:59 GMT

Shalom,

This is a networking error.

Make sure the systems can ping each other and that networking support for hostnames used in the cluster.conf file is supported by either /etc/hosts or DNS.

SEP

Re: RHEL Cluster error

Fadia Almarei — Mon, 28 Aug 2006 08:08:33 GMT

Dear Steven

the two servers can ping each other and they are configured in the /etc/hosts files in both servers.

BR;
Fadia

Re: RHEL Cluster error

Ivan Ferreira — Mon, 28 Aug 2006 10:48:14 GMT

If you change the order of the servers, that is, if you start first server 2 (that now is not starting) and then server 1, the problem is transfered to server 1? I just want to ensure that both servers can start the service independtly.

Are you sure that the network interfaces names and order are correct?

Re: RHEL Cluster error

Serviceguard for Linux — Mon, 28 Aug 2006 19:07:52 GMT

I'm not very familiar with RH Cluster Server, but do you have the firewall on? If so, try turning it off until everything is up and running and then, after you find the ports that you need to pass, turn it on.