Duplicated naming service in a distributed processing system

• US 6,236,999 B1
• Filed: 09/23/1999
• Issued: 05/22/2001
• Est. Priority Date: 11/05/1998
• Status: Expired due to Term

• Current Assignee: Oracle International Corporation (Oracle Corporation)
• Original Assignee: BEA Systems Incorporated (Oracle Corporation)
• Inventors: Halpern, Eric M., Jacobs, Dean B.
• Primary Examiner(s): Black, Thomas
• Assistant Examiner(s): Coby, Frantz
• Application Number:
  US09/405,508
• Time in Patent Office: 607 Days
• Field of Search: 707/10, 707/103, 707/104, 707/100, 709/242, 709/200
• US Class Current: 1/1
• CPC Class Codes: G06F 9/465 Distributed object oriented systems remote method invocation [RMI] G06F9/548
• CPC Class Codes: G06F 9/548 Object oriented; Remote method invocation [RMI] non-remote method invocation G06F9/449
• CPC Class Codes: Y10S 707/99945 Object-oriented database structure processing
• CPC Class Codes: Y10S 707/99952 Coherency, e.g. same view to multiple users

Abstract

A clustered enterprise Java™ distributed processing system is provided. The distributed processing system includes a first and a second computer coupled to a communication medium. The first computer includes a Java™ virtual machine (JVM) and kernel software layer for transferring messages, including a remote Java™ virtual machine (RJVM). The second computer includes a JVM and a kernel software layer having a RJVM. Messages are passed from a RJVM to the JVM in one computer to the JVM and RJVM in the second computer. Messages may be forwarded through an intermediate server or rerouted after a network reconfiguration. Each computer includes a Smart stub having a replica handler, including a load balancing software component and a failover software component. Each computer includes a duplicated service naming tree for storing a pool of Smart stubs at a node. The computers may be programmed in a stateless, stateless factory, or a stateful programming model. The clustered enterprise Java™ distributed processing system allows for enhanced scalability and fault tolerance.

Claims

1. An apparatus, comprising a communication medium;

a first processing device, coupled to the communication medium having a naming service; and

a second processing device, coupled to the communication medium, having a replicate naming service, wherein the first processing device includes a first stub having a first replica handler and the second processing device includes a second stub having a second replica handler, wherein the first and second replica handlers include a failover software program.