weblogic中domain等名詞解釋

開始學習jms了，在自己的機器上裝了一個weblogic9.2，狂卡中。。。。為了學習，還是忍了，呵呵 在 配置的過程中，對domain，server等一些名詞總是不很理解，現在把自己查到了一些資料記錄下來，怕自己忘記。 Domain: 域是個邏輯概念，用來組織管理一系列的應用伺服器例項，也就是下面要解釋的server. 域是WebLogic應用伺服器中最大的概念，WebLogic應用伺服器啟動的時候就是以某個域來啟動的，它有一箇中心配置檔案叫config.xml. A domain is the basic administration unit for WebLogic Server instances (servers) that is represented in its own configuration file (config.xml). A domain consists of one or more servers (and their associated resources) that you manage with a single Administration Server. Cluster: 族也是一個邏輯概念，用來分組用途相同的伺服器例項，一個域中可以有多個族。 A cluster is a deployment in which multiple WebLogic Server instances (servers) run simultaneously and work together to provide increased scalability and reliability. A cluster appears to clients to be a single WebLogic Server instance. The servers that constitute a cluster can run on the same machine, or be located on different machines. Machine: 機器是物理上的概念，代表一臺執行WebLogic應用伺服器的實在的機器，包括其IP地址等資訊。一個域中可以包括多臺機器。（同一臺機器可以屬於不同的域嗎？） A machine is the logical representation of the computer that hosts one or more WebLogic Server instances (servers). WebLogic Server uses configured machine names to determine the optimum server in a cluster to which certain tasks, such as HTTP session replication, are delegated. The Administration Server uses the machine definition in conjunction with the Node Manager application to start remote servers. Server: 伺服器，也就是一個應用伺服器的例項，用來部署和執行各種J2EE應用程式，也可以來配置各種服務程式。它是WebLogic應用伺服器的基本服務單元。一個WebLogic域中一般有一個管理伺服器和多個被管理伺服器。也就是下面我們要談到的兩個概念。 A server is an instance of WebLogic Server that runs in its own Java Virtual Machine (JVM) and has its own configuration. Each WebLogic Server domain must have one server that acts as the Administration Server. In a typical production environment, the Administration Server is where the Administration Console is run and used to perform. administrative tasks. By default, the Administration Server is called myserver. A typical production environment may also have one or more Managed Servers, which are instances of WebLogic Server used to host enterprise applications. Administrative Server: 管理伺服器是用來管理配置域的中心點，一般來說，管理伺服器上是不部署應用程式的，而是用來統一管理、配置、監控被管理伺服器以及部署應用程式到被管理伺服器上。一個域中有一臺管理伺服器。 Managed Server: 被管理伺服器是用來部署執行各種應用程式的。一個域中有一臺或多臺被管理伺服器。 Node Manager: 節點管理器是一個單獨執行的後臺程式，一般執行在被管理伺服器的機器上，用來提供遠端啟動和停止伺服器（Server）的功能。