J2EE Engine

[Former Member]

Hi,

Explain me J2EE engine.If we deploy the Webdynpro-java application at the same time other one deploy the another application,which application take first and what is the procedure to deploy the applications,where we delete the deployed applications.If SDN shows red color what we do that and explain me SDN also and paths also.

[Former Member · Accepted solution]

Hi ramkumar,

1st correction it is not SDN but it is SDM.

when u deployed ur application in the server .

The server takes ur requests in the form of objects.

They are kept in a queue.

If ur server is down it means that that the number of objecta are more.

Then the basis people will release the locked objects.

Then the server gets up

Red symbol shows that your server is down.

Thanks & Regards,

Lokesh

[Former Member]

Hi Ram

1) More than one person Deploying at the same time :

If 2 people are tryting to deploy at the same time onto the same server, then the request which server recives first will be processed. THERE WILL BE ONLY ONE ACTIVE DEPLOYMENT THREAD , If there is already one request under processing the other person will receive an error message stating that "Cannot Log in. There are already active sessions running"

2) Deleting Deployed Applications

For this you need to login into the server (Remote desktop connection)

a)Open "Software Deployment Manager GUI"

b) Provide SDM password

c) Goto UNDEPLOYMENT tab

b) Select the application which you want to undeploy

e) Restart the Java Engine

3) SDM Indication is in Red color

This means that your server is down, you need to start the server,

Best Regards

Chaitanya.A

[Former Member]

If SDM is in red color it means that it is in stop mode.

If you have any other queries then reply.Or else close the thread.

[Former Member]

The J2EE engine is the Engine which is going to deploy and execute the webdynpro applications.If only server instance is present and no child instance is available for the J2EE engine,with this scenario if 2 applications are depolyed at the same time then the J2EE engine is going to process the request which comes first to it.And you are going to get an error saying that 'There are already active session' for the other application is deployed.The child instances are created to balance the load on the server.

IN J2EE ENGINE SDM is responsible for the deployment.It takes care of all the deployments from various NWDS.

You can configure the J2EE engine from your NWDS - systempreferences---j2ee engine and provide the details

SDN--system landscape directory is to list out all the systems implemented in the landscape.

You can create various 'Techincal systems' to identify the various heterogeneous systems implemented in the landscape.

WEBAS-ABAP--- to identify the sap systems(like ECC,R3,BW,CRM)

WEBAS-JAVA---- to identify the j2ee engine.

THIRDPARTY-----to identify the RDBMS sytem

XI----

---

to identify the XI system

If any queries then reply to the thread.

Edited by: cool dude on Jan 24, 2008 3:15 PM

Edited by: cool dude on Jan 24, 2008 3:26 PM