12-18-2013 12:56 AM
Hi,
Is there a way to determine if an ESA cluster is using SSH or CCS for cluster communication?
Regards
A
Solved! Go to Solution.
12-18-2013 06:04 AM
If they were set to cluster and communication by hostname - as long as you know the IPs that the interfaces should connect on, this shouldn't be a problem.
You will be presented a notification:
All machines in the cluster will communicate with each other by IP address.
In order to make this change, you must specify IP addresses for the 2 machines already in the cluster. Do you have this information and wish to proceed? [N]>
You can then commit the changes for the config update. It shouldn't affect any current communication or processing.
12-18-2013 05:42 AM
You should see port 22 (SSH) vs. port 2222 (CCS) in use from checking communication from 'clusterconfig':
(Cluster esa_a-esa_b)> clusterconfig
Cluster esa_a-esa_b
Choose the operation you want to perform:
- ADDGROUP - Add a cluster group.
- SETGROUP - Set the group that machines are a member of.
- RENAMEGROUP - Rename a cluster group.
- DELETEGROUP - Remove a cluster group.
- REMOVEMACHINE - Remove a machine from the cluster.
- SETNAME - Set the cluster name.
- LIST - List the machines in the cluster.
- CONNSTATUS - Show the status of connections between machines in the cluster.
- COMMUNICATION - Configure how machines communicate within the cluster.
- DISCONNECT - Temporarily detach machines from the cluster.
- RECONNECT - Restore connections with machines that were previously detached.
- PREPJOIN - Prepare the addition of a new machine over CCS.
[]> communication
Should all machines in the cluster communicate with each other by hostname or by IP address?
1. Communicate by IP address.
2. Communicate by hostname.
[1]>
All machines in the cluster will communicate with each other by IP address.
Group Main_Group:
1. Machine esa_a: using IP address 10.1.2.3 port 22
2. Machine esa_b: using IP address 10.1.2.4 port 22
Hope this helps!
-Robert
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12-18-2013 05:49 AM
Thanks, that helps!
But what if the machines are set to communicate by hostname? Will this procedure change that or does that require a commit?
12-18-2013 06:04 AM
If they were set to cluster and communication by hostname - as long as you know the IPs that the interfaces should connect on, this shouldn't be a problem.
You will be presented a notification:
All machines in the cluster will communicate with each other by IP address.
In order to make this change, you must specify IP addresses for the 2 machines already in the cluster. Do you have this information and wish to proceed? [N]>
You can then commit the changes for the config update. It shouldn't affect any current communication or processing.
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