Example of 2 Node Cluster Configuration

Basic 2-nodes Cluster Configuration
2-nodes Cluster with Proxied Access to Database
2-nodes Cluster with Load Balancer

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:

Basic 2-nodes Cluster Configuration

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

Configuration of 2-nodes Cluster, each node has access to a database

Figure 42.1. Configuration of 2-nodes 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.jgroups.tcpping.initial_hosts=192.168.1.132[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.jgroups.tcpping.initial_hosts=192.168.1.131[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.

2-nodes Cluster with Proxied Access to Database

This Cluster configuration is similar to the previous one, but only one node has direct access to a database. The node2 has to use node1 as a proxy.

Configuration of 2-nodes Cluster, one node without direct access to database

Figure 42.2. Configuration of 2-nodes Cluster, one node without direct access to 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=TheCloverCluster2

sandboxes.home=/home/clover/shared_sandboxes

Configuration of Node 2 on 192.168.1.132

cluster.datasource.type=remote                             (1)
cluster.datasource.delegate.nodeIds=node01

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.jgroups.tcpping.initial_hosts=192.168.1.131[7800]

cluster.group.name=TheCloverCluster2

sandboxes.home=/home/clover/shared_sandboxes

(1)

These two lines describe access to database via another node.

2-nodes Cluster with Load Balancer

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

Configuration of 2-nodes Cluster with load balancer

Figure 42.3. Configuration of 2-nodes 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.jgroups.tcpping.initial_hosts=192.168.1.132[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.jgroups.tcpping.initial_hosts=192.168.1.131[7800]

cluster.group.name=TheCloverCluster3

sandboxes.home=/home/clover/shared_sandboxes