Enable or disable high availability manager

 

+

Search Tips   |   Advanced Search

 

Overview

The high availability manager is enabled for a JVM process if the "enable" attribute of the HAManagerService configuration object is set to true. The default is enabled. If the setting is changed, the corresponding JVM process must be restarted before the change goes into effect.

To reduce CPU and memory usage, if failover is not required, turn off HA manager. This will significantly speed up processing.

Enable or disable HA manager

1. Depending on scope, go to one of the following...

   System Administration | Deployment manager | Core group service
   System Administration | Node agent | node_agent | Core group service
   Servers | Server Types | WebSphere application servers | server_name | Core group service

   ...and set...

   Enable service at server startup

2. Synchronize changes with nodes

3. Restart all of the processes changed

4. Verify the high availability manager state by checking SystemOut.log for one of the following messages...

   • HMGR0005I: The Single Server DCS Core Stack transport has been started for core group DefaultCoreGroup.

     HA manager is disabled because the transport can only establish communication with a single JVM server process.

   • HMGR0001I: The DCS Core Stack transport has been started for core group DefaultCoreGroup. There are x members.

     HA manager is enabled because the transport can establish communication with x number of JVM server processes

 

Related

Start the wsadmin scripting client
Create a new core group (high availability domain)
Set up a high availability environment
When to use a high availability manager