Universal Logging System

more to come

This example script-cluster configuration describes a productive environment of:

• two servers, host001 and host002
  • one application server
  • one database server
• each server has a package
  • 'tomcat' for the application server
  • 'database' for the database server

This is a very simple example and does not contain any failover functionality.

The following configuration files only show the significantly changed parts or parameters.

/etc/sccl/sccl.conf

# Clustername
CLUSTER=SAMPLE01
 
# Cluster nodes
NODES="host001 host002"

The package 'tomcat' can only run on host 'host001'. The package 'database' can only run on host 'host002'.

/etc/sccl/packages.conf

# <package>  [-]  <host1> [<host2> [<host3>]...]
 
# Application
tomcat host001
 
# Database
database host002

/etc/sccl/resources.conf

# <package>  <package_name>  <resource1> [<resource2> [<resource3]...]
 
database My_Database   PRG:db_startstop   RST:tomcat:CLUSTER
 
tomcat Tomcat_Application_Server   CPKG:database:WAIT:3   PRG:tomcat_startstop

Alternatively you can use:

/etc/sccl/resources.conf

# <package>  <package_name>  <resource1> [<resource2> [<resource3]...]
 
database My_Database   PRG:db_startstop   RST:tomcat:CLUSTER
 
tomcat Tomcat_Application_Server   CPKG:database:START   PRG:tomcat_startstop