Starting an Application Server in a WebSphere Application Server Network Deployment environment
 Technote (FAQ)
 
Problem
Does the Node Agent have to be running for an Application Server in the node to be started?
 
Solution
In a Network Deployment environment, an application server cannot start unless the Node Agent is running. Upon application server start-up, the server must register with the Node Agent in order to provide the correct server status to the Deployment Manager and also allow configuration and administrative changes to be performed on the server through the Deployment Manager.

In the past, part of the requirement that the Node Agent had to be started was because the Location Service Daemon (LSD) ran specifically on the Node Agent and the application server needed the LSD to find resources within a cell. This Location Service Daemon (LSD) was changed in WebSphere Application Server V5.0.2 to not be a single point of failure and this is no longer a reason the Node Agent must be started for an application server to be started. The requirement now is strictly for registering the server with the Node Agent and then the Deployment Manager for server configuration and administration. It also allows the server to be registered as active for a cluster which contains the server. While it is not recommended to run a server with out the Node Agent running, it is possible after the server has started to shut down the Node Agent and to continue handling requests. The server will not be capable to be managed or administered however.
 
Related information
Starting servers - product documentation for WebSphere®
 
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers Runtimes for Java Technology Java SDK
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > System Management/Repository
Operating system(s): Windows
Software version: 6.0
Software edition:
Reference #: 1064914
IBM Group: Software Group
Modified date: Mar 31, 2005