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тАО06-15-2009 10:57 AM
тАО06-15-2009 10:57 AM
I currently have a running Cluster on servers ntpcdb1.dcd.convergys.com and ntpcdb2.dcd.convergys.com
[root@ntpcdb1 ~]# clustat
Cluster Status for ntpcdb @ Mon Jun 15 14:21:05 2009
Member Status: Quorate
Member Name ID Status
------ ---- ---- ------
ntpcdb2.dcd.convergys.com 1 Online
ntpcdb1.dcd.convergys.com 2 Online, Local
[root@ntpcdb1 ~]#
When I start up luci to create a new cluster on ntpcrtr1.dcd.convergys.com for this server and ntpcrtr2.dcd.convergys.com
I receive the following error messages:
Status messages:
Host ntpcrtr1.dcd.convergys.com is already authenticated
Host ntpcrtr2.dcd.convergys.com is already authenticated
The following errors occurred:
ntpcrtr1.dcd.convergys.com reports it is a member of cluster "ntpcdb"
ntpcrtr2.dcd.convergys.com reports it is a member of cluster "ntpcdb"
Don't know how or why these servers are saying they are in the ntpcdb cluster, but I need to get them removed from there so
I can create the new ntpcrtr cluster with these 2 servers in it....
Any ideas ???
Solved! Go to Solution.
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тАО06-15-2009 03:48 PM
тАО06-15-2009 03:48 PM
Re: Red Hat Cluster Systems
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тАО06-15-2009 05:03 PM
тАО06-15-2009 05:03 PM
Re: Red Hat Cluster Systems
I modified this file and changed all references to the new cluster and server names...
I then went back into the luci web site for the server, and selected cluster:
Cluster Name: ntpcrtr Start this cluster Restart this cluster Delete this cluster
Status: Not Quorate
Total Cluster Votes: 0
Minimum Required Quorum: 1
Nodes
ntpcrtr1.dcd.convergys.com
ntpcrtr2.dcd.convergys.com
Services
No Services Defined
I then selected to Start the Cluster and received:
Choose a cluster to administer
An error occurred when trying to contact any of the nodes in the ntpcrtr cluster.
When I looked at the cluster.conf file on both ntpcrtr1/2 servers, all the references I changed from ntpcdb1/2 to ntpcrtr1/2, were all changed back to ntpcdb1/2....
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тАО06-17-2009 04:58 AM
тАО06-17-2009 04:58 AM
Re: Red Hat Cluster Systems
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тАО06-17-2009 11:43 AM
тАО06-17-2009 11:43 AM
SolutionIn any case you can only build one cluster with two machines, since you need at least two nodes, each declared with nodename matching the output of the "hostname" command.
The second place to look for the error is the method for cluster communication.
RHCS uses broadcast as the default for communicating with other cluster nodes, that restricts you to a single cluster in a physical network, at least when you configure the cluster using system-config-cluster utility.
Since you are using luci, the default communication type is multicast. In that case, for the second cluster you must specify a different multicast address. You can specify it in the multicast tab.
Make sure to allow IGMP traffic on your ethernet switches.
Hope it helps.
Best regards.
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тАО06-17-2009 11:45 AM
тАО06-17-2009 11:45 AM
Re: Red Hat Cluster Systems
What is your fencing setup?
You may need to issue this command:
fence_ack_manual -O -n nodename
Had the same problem with my home lab this morning.
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тАО06-17-2009 03:01 PM
тАО06-17-2009 03:01 PM
Re: Red Hat Cluster Systems
However, only ntpcrtr1 is active.... ntpcrtr2 gives the error message:
The ricci agent for this node is unresponsive.
And I show ricci running on the ntpcrtr2 server:
ricci is running on this server:
[root@ntpcrtr2 ~]# ps -ef |grep ricci
ricci 8423 1 0 09:52 ? 00:00:00 ricci -u 202
root 9464 7337 0 10:49 pts/1 00:00:00 grep ricci
[root@ntpcrtr2 ~]# service ricci status
ricci (pid 8423) is running...
[root@ntpcrtr2 ~]#
I've found some hits saying there is a bug fix for this, but both servers were updated and all available patches have been applied..... Now I'm loast again....
Cluster Name: ntpcrtr
Status: Quorate
Total Cluster Votes: 1
Minimum Required Quorum: 1
Nodes
ntpcrtr1.dcd.convergys.com
ntpcrtr2.dcd.convergys.com
---------------------------------------
ntpcrtr
Node Name: ntpcrtr2.dcd.convergys.com
Status: This node is not responding
The ricci agent for this node is unresponsive.
Node-specific information is not available at this time.
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тАО06-17-2009 07:59 PM
тАО06-17-2009 07:59 PM
Re: Red Hat Cluster Systems
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тАО06-18-2009 04:30 AM
тАО06-18-2009 04:30 AM
Re: Red Hat Cluster Systems
[root@ntpcrtr1 ~]#
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тАО02-24-2010 01:26 PM
тАО02-24-2010 01:26 PM