stage/no stage/external-stage in WEBLOGIC

Stage mode


The Administration Server copies the archive files from their

source location to a location on each of the targeted Managed Servers that

deploy the archive. For example, if you deploy a J2EE Application to three

servers in a cluster, the Administration Server copies the application archive

files to each of the three servers. Each server then deploys the J2EE

Application using its local copy of the archive files.

Stage mode is the default mode when deploying to more than one WebLogic Server

instance.



Nostage mode

The Administration Server does not copy the archive files from

their source location. Instead, each targeted server must access the archive

files from a single source directory for deployment. For example, if you deploy

a J2EE Application to three servers in a cluster, each server must be able to

access the same application archive files (from a shared or network-mounted

directory) to deploy the application.

Nostage mode is the default mode when deploying only to the Administration

Server (for example, in a single-server domain). You can also select nostage

mode if you run a cluster of server instances on the same machine.



- External_stage mode



External_stage mode is similar to stage mode, in that the

deployment files must reside locally to each targeted server. However, the

Administration Server does not automatically copy the deployment files to

targeted servers in external_stage mode; instead, you must manually copy the

files, or use a third-party application to copy the files for you.