Example of 2-Node Cluster Configuration

CloverDX Server > Cluster > Cluster Configuration > Example of 2-Node Cluster Configuration

This section contains examples of CloverDX Cluster nodes configuration. We assume that the user "clover" is running the JVM process and the license will be uploaded manually in the web GUI. In addition it is necessary to configure:

Sharing or replication of the file system directory which the property "sandboxes.home" is pointing to. E.g. on Unix-like systems it would be typically /home/[username]/CloverDX/sandboxes.
The connection to the same database from both nodes.

Basic 2-Node Cluster Configuration

This example describes a simple Cluster: each node has a direct connection to a database.

Figure 249. Configuration of a 2-node Cluster, each node has access to a database

Configuration of Node 1 on 192.168.1.131

jdbc.driverClassName=org.postgresql.Driver
jdbc.url=jdbc:postgresql://192.168.1.200/clover_db?charSet=UTF-8
jdbc.dialect=org.hibernate.dialect.PostgreSQLDialect
jdbc.username=clover
jdbc.password=clover

cluster.enabled=true
cluster.node.id=node01
cluster.http.url=http://192.168.1.131:8080/clover
cluster.jgroups.bind_address=192.168.1.131
cluster.jgroups.start_port=7800

cluster.group.name=TheCloverCluster1

sandboxes.home=/home/clover/shared_sandboxes

Configuration of Node 2 on 192.168.1.132

jdbc.driverClassName=org.postgresql.Driver
jdbc.url=jdbc:postgresql://192.168.1.200/clover_db?charSet=UTF-8
jdbc.dialect=org.hibernate.dialect.PostgreSQLDialect
jdbc.username=clover
jdbc.password=clover

cluster.enabled=true
cluster.node.id=node02
cluster.http.url=http://192.168.1.132:8080/clover
cluster.jgroups.bind_address=192.168.1.132
cluster.jgroups.start_port=7800

cluster.group.name=TheCloverCluster1

sandboxes.home=/home/clover/shared_sandboxes

The configuration is done in a properties file. The file can be placed either on a default or specified location.

A 2-Node Cluster with Load Balancer

If you use an external load balancer, the configuration of CloverDX Cluster will be same as in the first example.

Figure 250. Configuration of a 2-node Cluster with load balancer

The cluster.http.url and cluster.jgroups.bind_address are URLs of particular Cluster nodes even if you use a load balancer.

Configuration of Node 1 on 192.168.1.131

jdbc.driverClassName=org.postgresql.Driver
jdbc.url=jdbc:postgresql://192.168.1.200/clover_db?charSet=UTF-8
jdbc.dialect=org.hibernate.dialect.PostgreSQLDialect
jdbc.username=clover
jdbc.password=clover

cluster.enabled=true
cluster.node.id=node01
cluster.http.url=http://192.168.1.131:8080/clover
cluster.jgroups.bind_address=192.168.1.131
cluster.jgroups.start_port=7800

cluster.group.name=TheCloverCluster3

sandboxes.home=/home/clover/shared_sandboxes

Configuration of Node 2 on 192.168.1.132

jdbc.driverClassName=org.postgresql.Driver
jdbc.url=jdbc:postgresql://192.168.1.200/clover_db?charSet=UTF-8
jdbc.dialect=org.hibernate.dialect.PostgreSQLDialect
jdbc.username=clover
jdbc.password=clover

cluster.enabled=true
cluster.node.id=node02
cluster.http.url=http://192.168.1.132:8080/clover
cluster.jgroups.bind_address=192.168.1.132
cluster.jgroups.start_port=7800

cluster.group.name=TheCloverCluster3

sandboxes.home=/home/clover/shared_sandboxes

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