Red Hat Summit1.4. Verifying cluster views
Data Grid Server instances on the same network automatically discover each other and form clusters.
Complete this procedure to observe cluster discovery with the MPING protocol in the default TCP stack with locally running Data Grid Server instances. If you want to adjust cluster transport for custom network requirements, see the documentation for setting up Data Grid clusters.
This procedure is intended to demonstrate the principle of cluster discovery and is not intended for production environments. Doing things like specifying a port offset on the command line is not a reliable way to configure cluster transport for production.
Prerequisites
Have one instance of Data Grid Server running.
Procedure
-
Open a terminal in
$RHDG_HOME. Copy the root directory to
server2.cp -r server server2Specify a port offset and the
server2directory.bin/server.sh -o 100 -s server2
Verification
You can view cluster membership in the console at 127.0.0.1:11222/console/cluster-membership.
Data Grid also logs the following messages when nodes join clusters:
INFO [org.infinispan.CLUSTER] (jgroups-11,<server_hostname>)
ISPN000094: Received new cluster view for channel cluster:
[<server_hostname>|3] (2) [<server_hostname>, <server2_hostname>]
INFO [org.infinispan.CLUSTER] (jgroups-11,<server_hostname>)
ISPN100000: Node <server2_hostname> joined the cluster
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