JBOSS EAP6 HIGH AVAILABILITY PDF

How to configure active/passive mode in JBoss EAP 6 High Availability cluster? Is it possible in active/passive mode to start passive cluster. JBoss EAP6 high availability As a Java EE application server, JBoss EAP6 uses modules coming from different open source projects: Web server (JBossWeb). Chapter 3. Setting Up a JBoss EAP6 Cluster In the previous chapter, we have learned how to use the management console to deploy projects into JBoss EAP6 .

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I will discuss the differences between the two setups as we go along. This demo system was built on a VM running Ubuntu If you are using a different OS, then obviously some of the instructions will need to be altered to fit your particular OS. The following is a list of the exact versions of software I used, so if you’re using any other version, then you may need to do things a little differently!

EAP 6 is different from other server releases as it does not contain multiple server configuration directories all, default, minimal. It just contains a set of configuration files – each one including a different set of server modules.

Accept the default user type – Management User. Accept the default realm – ManagementRealm.

Enter the username and password of your choice. Good from a security point of view, but ultimately does very little! You will availabilitu asked if you are sure, so select yes. In answer to the question ‘Is this new user going to be used for one AS process to connect to another AS process?

JBoss EAP6 High Availability by Weinan Li

The built-in cluster configuration file are standalone-ha. Next, we’re going to switch from using UDP the eeap6 to using TCP to communicate between our two servers, jvoss was the case in my first article in the series. Ok, so we now have our two servers set up and ready for clustering.

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To do this, I will create two shell scripts in my home directory, start1. The -b option states the IP address of the server, and we are going to use 0.

In the server 2 start file we also need to pass in a port offset as we can’t have both servers running on the availabiility port. We have set this to This means that all server 2 ports will be more than server 1. Note – You won’t see the nodes in cluster on initial start-up.

You will need to deploy an application which has the distributable tag in web. By default, auto-deploy of zipped content is enabled, and auto-deploy of exploded content is disabled. The scanner will not attempt to directly monitor the deployment content and decide if or when the end availbaility wishes the content to be deployed or undeployed.

Instead, the scanner relies on a system of marker files, with the user’s addition or removal of a marker file serving as a sort of command telling the scanner to deploy, undeploy or redeploy content.

Jboss Eap6 High Availability by Weinan Li

Therefore if your content is exploded you will need to create a file in here called clusterTest. Your app will then be deployed. Point a browser at localhost and you should see the ‘It works!

If you refresh the page you will see that all calls are going to one server.

If you now shut down that server and then refresh the page again you will see that it has failed over to the other server. In order to test this we will turn off sticky sessions. Sticky sessions means that when a availabipity comes in to a site from a client all further requests go to the same server the initial client request accessed.

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So, there you have it. Make a copy of the folder and rename it to myserver2. Good, we now have two JBoss servers.

Accept the default realm – ManagementRealm Enter the avzilability and password of your choice. Now, do the same for myserver2. Cluster Setup The built-in cluster configuration file are standalone-ha. In the TCP Stack section, under Make the same addition in myserver2.

JBoss EAP6 high availability – JBoss EAP6 High Availability [Book]

Accessing the console Once your server is up-and-running, you can access the admin console at: Starting the servers Ok, so we now have our two servers set up and ready for clustering. We will also need to pass in a few parameters: We then need to make the two files executable. In the first post in the series I created a test application called clusterTest.

In order to get it to work on EAP 6, you will need to make a couple of minor changes. You will now see in both terminals messages regarding clustering. ServerName localhost Starting Apache Run the following command: In the two terminals you should see something similar to: Testing Failover Point your browser at: StandardSessionFacade f23e The nodeId is: Testing Load Balancing In order to test this we will turn off sticky sessions.

Stop the two servers.

Jboss Eap6 High Availability

Start the two servers. Now if you refresh your browser you should see it load balance between the two servers.

Conclusion So, there you have it. Hope you can join me!