Node Vs node manager ; Admin server Vs managed server

[Harikrishna Gorrepati]

Hi,

I am getting confused with the following.. Please advice.

1. What is the difference between Node and Node Manager ?
2. What is the difference between Admin server Vs managed server ?
3. What is the relationship between Node/Node Manager to Admin/Managed Server ?

Thanks

[Ravish Mody]

Hi Harikrishna,

1. What is the difference between Node and Node Manager ?
A
Node Manager is a WebLogic Server utility that enables you to start, shut down, and restart Administration Server and Managed Server instances from a remote location.
Node now there is nothing like node in weblogic servers but many people refer managed servers as Nodes.

2. What is the difference between Admin server Vs managed server ?
A
Admin server can be only one for a Domain, which works like a Central Configuration/Monitoring controller for the entire domain
Managed server are similar to the Administration Servers, except few differences. Like Managed Servers will not have Administration Console Application (consoleapp) deployed in it

3. What is the relationship between Node/Node Manager to Admin/Managed Server ?
A Now Node Manager is needed to start/stop managed servers from the Admin consoles

To get more information on them check out the below link

Topic: WebLogic Initials
http://middlewaremagic.com/weblogic/?p=1914

[Harikrishna Gorrepati]

Thank You Ravish. It's a beautiful explanation