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:
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-nodes Cluster Configuration
This example describes a simple Cluster: each node has a direct connection to a database.
Figure 51.1. 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.
Figure 51.2. 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 an external load balancer, the configuration of CloverDX Cluster will be same as in the first example.
Figure 51.3. 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