Verify that the Cluster is Scaled Out

After you have updated the operational override files on all nodes, verify that the new Well Known Address (WKA) list has taken effect and that the cluster size has increased.

1. Run the following command:

   sudo journalctl -u [e-mail] | grep -A 4 WellKnownAddressList

   The last entry in the output reflects the private IP address of the new compute instance. This confirms that the new WKA list is in effect.

   Nov 21 00:24:41 tim2c93a-coh-0 start_coherence.sh[6799]: WellKnownAddressList(
   Nov 21 00:24:41 tim2c93a-coh-0 start_coherence.sh[6799]: 10.0.3.2
   Nov 21 00:24:41 tim2c93a-coh-0 start_coherence.sh[6799]: 10.0.3.3
   Nov 21 00:24:41 tim2c93a-coh-0 start_coherence.sh[6799]: 10.0.3.4
   Nov 21 00:24:41 tim2c93a-coh-0 start_coherence.sh[6799]: )
   

   If you have scaled out your cluster by more than one node, then the above output must reflect the private IP addresses of all those nodes.
2. View logs by running the following command:

   sudo journalctl -u [e-mail] | tail

   The last line of the log reflects the increased number of nodes after the scale out operation.

   Nov 21 00:24:43 tim2c93a-coh-0 start_coherence.sh[6799]: 2019-11-21 00:24:43.093/4.444
   Oracle Coherence GE 14.1.1.0.0 <Info> (thread=DistributedCache:PartitionedCache, member=11):
   Partition ownership has stabilized with 3 nodes