How to Register and Configure HA for WebLogic Server as a Multi-Master Data Service (CLI)

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Use this procedure to configure HA for WebLogic Server in a multi-master configuration. The following steps assume that you are using the configuration that is described in WebLogic Servers Configured as a Multi-Master Resource and have configured the WebLogic Servers as mentioned in Installing and Configuring the HA for WebLogic Server Application. These steps assume that you have already created a resource group and started the Administration Server either outside or inside the agent control. If you are planning a different configuration, you must configure the WebLogic Server resources accordingly.

Note - This configuration does not enable smooth shutdown. The HA for WebLogic Server Stop method forces the shutdown of the WebLogic Server (kills the process). Refer to Creating a Resource That Shuts Down Smoothly for the configuration to enable smooth shutdown in a multi-master configuration. For more information, see STOP Method.

Add the HA for WebLogic Server resource type.
```
# clresourcetype register SUNW.wls
```
Create a scalable resource group for Managed Servers.
```
# clresourcegroup create -p Maximum_primaries=m \
-p Desired_primaries=n managed-server-rg
```
- -p Maximum_primaries=m specifies the maximum number of active primary nodes permitted for this resource group. The default is 1.
- -p Desired_primaries=n specifies the desired number of active primary nodes for this resource group. The default is 1.
- managed-server-rg is the resource group name.

Bring the resource group online.

# clresourcegroup online -M managed-server-rg

Create a multi-master resource for starting the Managed Server instances simultaneously.

The following example starts the WebLogic Server Managed Server instances mgd1 on node1 and mgd2 on node2.

# clresource create -t SUNW.wls -g managed-server-rg \ 
-p Confdir_list=/global/wls/Oracle/Middleware/wlserver_12.1/ \
-p Server_url{node1}=http://logical-host-1:7003 \
-p Server_url{node2}=http://logical-host-2:7004 \
-p Start_script=/global/wls/Oracle/Middleware/user_projects/domains
/base_domain_mgd1/bin/startManagedWebLogic.sh
-p "Server_name{node1}"=mgd1 \
-p "Server_name{node2}"=mgd2 \
-p Resource_dependencies=logical-host-1@node1,logical-host-2@node2
managed-server-rs

Tip - You can create the resource in the global cluster or in a zone cluster. To create a resource in the specific zone cluster from the global cluster, use the –Z option to specify the name of the zone cluster.