Tungsten Manager

Details
Parent Category: Continuent
Published on Friday, 18 July 2008 09:46

What Is Tungsten Manager?

The Tungsten Manager is a flexible cluster manager designed to administer JMX-enabled services and operating system processes that constitute resources in the cluster.  Tungsten Manager solves a critical problem in clusters, namely managing all cluster resources as a single unit.  The Tungsten Manager is built on a firm foundation of group communications, which handles issues like broadcast message delivery and failure detection.

Managers have the following specialized capabilities designed to enable efficient administration:

  • Automatic discovery of manager instances
  • Framework for implementing resource management logic
  • Protocol for addressing commands to resources
  • Reliable broadcast command delivery to all manager instances
  • Predictable failure handling
  • JMX client interface to issue issue commands to the cluster

The following diagram illustrates the manager architecture.

manager-arch

Resource handlers are implemented using a simple extension model based on a Handler interface.  Handlers contain logic to implement management operations.  The Tungsten Manager provides default handlers, including generic handlers to manage JMX-enabled services.