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Create Dynamic Cluster(Part-3-)

A dynamic cluster is a WebLogic cluster that contains one or more dynamic servers. Dynamic clusters are based on a single, shared server template. You use the shared server template to specify the configuration of the servers in your dynamic cluster. This means that each managed server (dynamic sever) does not need to be manually configured when expanding the cluster.

  1. Administration Server should be started. In a Terminal Window, type:

/u01/projects/wlsdevday/domains/wlsdevdayDomain/bin/startWebLogic.sh

It will prompt for username and password, enter: weblogic and then welcome1.

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Wait until you see in the console: Server started in RUNNING mode.

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  1. Open a browser instance and type: http://localhost.localdomain:7001/console.

Login using weblogic and welcome1 credentials.

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Open a new terminal.

cd /u01/projects/wlsdevday/nodemanager/wlsdevdaynode

vi nodemanager.properties

Change SecureListener=false, save the file and close it.

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  1. Start Node Manager. In the Terminal Window type:

/u01/projects/wlsdevday/domains/wlsdevdayDomain/bin/startNodeManager.sh

 

  1. Go to Administration Server Console, Expand Environment, click on Machines. The Administration Console Change Center provides a way to lock a domain configuration so you can make changes to the configuration while preventing other accounts from making changes during your edit session. The domain configuration locking feature is always enabled in production domains. It can be enabled or disabled in development domains.

Click on Lock and Edit to create a session of editing.

Click New and Enter Machine as Name and Click Next.

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Enter the following:

Type:                           SSL

Listen Address:             localhost

Listen Port:                  5556

Click Finish.
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Click on Activate Changes.
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  1. Create a standalone managed server which will behave as a load balancer on Port Number 7002.
    1. Click on ‘Lock & Edit’
    2. Click on “Environment->Servers”.
    3. Click on “New”
    4. Enter the following:
    5. Server Name: SampleLB
    6. Server Listen Address: localhost
    7. Server Listen Port: 7002
    8. Select “No, This is a stand-alone server.”
    9. Click on “Finish”

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Activate Changes, once the Managed Server (SampleLB) is created.

  1. Click on ‘Lock & Edit’ again. Click on newly created “SampleLB” managed server.

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  1. Specify the Machine to “machine” and click on “Save”. And then ‘Activate Changes’

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  1. Click on Control tab and select the SampleLB Server and click on “Start”. It will ask for a confirmation message, accept it.This will start the “SampleLB” managed server.

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  1. Deploy the load balancing application to stand-alone managed server “SampleLB”. Click on ‘Lock & Edit’. Click on “Environment->Deployments” and click on “Install”.

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  1. Enter the following Path: “/u01/content/weblogic-innovation-seminars/WInS_Demos/cluster-module/ClustWLSSessionSampleLBApp” and select ‘ClustWLSessionSampleLBApp.war’

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  1. Click on “Next”. Select “Install this deployment as an application”. Click on “Next”.

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  1. Select “SampleLB” Servers box. And click on “Next”.

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  1. Click on “Finish”. Once the page is redirected to the Deployments screen and the successful message is displayed, click on ‘Activate Changes’

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  1. Go to Administration Server Console, Expand Environment, click on Clusters.

Click on Lock and Edit to create a session of editing.

Click New and choose Dynamic Cluster:

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  1. Enter the Name wlsdevCluster and click Next.

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  1. Leave the default, 2 for the number of dynamic servers and enter Server Name Prefix: wlsdevManaged- and click Next.Ekran Resmi 2015-09-04 15.34.22
  2. Choose Use a single machine for all dynamic servers and choose Selected Machine: Machine. Click Next.

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  1. Use the ports: Listen Port for First Server 7002 and SSL 8100 and click Next.

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  1. Review the details and click Finish.

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  1. Click Activate Changes to activate your edit session.
  2. Go to Environment->Servers.

Click Control tab.

Check box near to wlsdevManaged Servers and click on Start.

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Click Yes.

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Refresh the page till both the managed server gets started.

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Note: you can also look on nodemanager log, Node manager is responsible for starting and stopping managed server.

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