README.md

remote-ejb-batch

Start batch job execution from WildFly remote ejb client

Add application user to WildFly

$JBOSS_HOME/bin/add-user.sh -a -u user1 -p user1

Build the application

mvn clean package

Deploy the webapp to a running WildFly server

mvn wildfly:deploy

Run client program

# to run client program as a guest without providing username:
mvn exec:exec

# to run client program as user1:
mvn exec:exec -Duser=user1 -Dpassword=user1

The client program calls a remote EJB, which in turn starts running the batch job named job1. After some duration, the job execution should complete successfully.

In additional, you may want to experiment with server suspend and resume, and see how the running batch job execution is stopped during suspending, and automatically restarted during server resume.

Server suspend / resume, and batch job execution stopping / restarting

suspend from WildFly CLI

Right after running the above client program, suspend the server with the following CLI command:

$JBOSS_HOME/jboss-cli.sh --connect

[standalone@localhost:9990 /] :suspend
{"outcome" => "success"}

Notice in the server log are some log entries indicating the server is being suspending, and the running batch job execution is being stopped.

resume the server and automatically restarting the stopped job execution

[standalone@localhost:9990 /] :resume
{"outcome" => "success"}

Verify in the server log that the stopped job execution is automatically restarted, from where it left off.

Undeploy the webapp from WildFly server

mvn wildfly:undeploy