WebSphere eXtreme Scale Administration Guide >

Administer the WebSphere eXtreme Scale environment

Administer the product environment includes starting and stopping servers in stand-alone mode or in WebSphere Application Server. You can also use WebSphere eXtreme Scale as a session manager in a WebSphere Application Server environment.

Server types

WebSphere eXtreme Scale has two types of servers: catalog servers and container servers. Catalog servers control the placement of shards and discover and monitor the container servers. Multiple catalog servers together comprise the catalog service. Container servers are the Java™ virtual machines that store the application data for the grid.

Stand-alone mode

Stand-alone mode refers to a WebSphere eXtreme Scale configuration that is running by itself, without any other application server products.

Run within WebSphere Application Server

When you run WebSphere eXtreme Scale on top of WebSphere Application Server, catalog servers automatically start on the WebSphere Application Server servers. To start container servers, package and deploy the application with ObjectGrid XML files.

• Set the availability of an ObjectGrid
  The availability state of an ObjectGrid instance determines which requests can be processed at any particular time.

• Start stand-alone WebSphere eXtreme Scale servers
  When you are running a stand-alone WebSphere eXtreme Scale configuration, the environment is comprised of catalog servers, container servers, and eXtreme Scale client processes. You must manually configure and start these processes.

• Stop stand-alone eXtreme Scale servers
  You can use the stopOgServer script to stop server processes.

• Administer WebSphere eXtreme Scale with WebSphere Application Server
  You can run catalog service and container server processes in WebSphere Application Server. The process to configure these servers is different than a stand-alone configuration. The catalog service can automatically start in WebSphere Application Server servers or deployment managers. Container process start when an eXtreme Scale application is deployed and started in the WebSphere Application Server environment.

Related concepts

Hardware and software requirements

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