Transparent Consistent Replication of Java RMI Objects
نویسندگان
چکیده
The Java Remote Method Invocation (JRMI) specification simplifies the development of distributed Java applications, but provides little support to guarantee reliable, highly-available operation. The Aroma System is middleware that transparently enhances the JRMI model with the mechanisms required for consistent replication of client and server objects. By exploiting novel interception mechanisms, the Aroma System is activated at runtime, with minimal modification to the application and to the JRMI infrastructure. The Aroma System adapts the JRMI model for group communication, and exploits an underlying reliable, totally-ordered multicast protocol to provide strong replica consistency. In this paper, we describe the architecture of the Aroma System, and discuss the mechanisms required to achieve transparent replication of Java RMI objects and to enforce strong replica consistency.
منابع مشابه
Filterfresh: Hot Replication of Java RMI Server Objects
This paper presents the design and implementation of a Java package called Filterfresh for building replicated fault-tolerant servers. Maintaining the correctness and integrity of replicated servers is supported by a GroupManager object instantiated with each replica to form a logical group. The Group Managers use a Group Membership algorithm to maintain a consistent group view and a Reliable M...
متن کاملP2P-RMI: Transparent Distribution of Remote Java Objects
Java Remote Method Invocation (RMI) is a built-in and easy-to-use framework for the distribution of remote Java objects. Its simplicity and seamless inter-virtual machine communication has made it a valuable tool for distributed services. It nevertheless exhibits certain constraints that practically limit RMI applications to the classical client/server distribution model, and make highly distri...
متن کاملTransparent Distribution of Remote Java Objects
Java Remote Method Invocation (RMI) is a built-in and easy-to-use framework for the distribution of remote Java objects. Its simplicity and seamless inter-virtual machine communication has made it a valuable tool for distributed services. It nevertheless exhibits certain constraints that practically limit RMI applications to the classical client/server distribution model, and make highly distri...
متن کاملTransparent Distributed Threads for Java
Remote method invocation in Java RMI allows the flow of control to pass across local Java threads and thereby span multiple virtual machines. However, the resulting distributed threads do not strictly follow the paradigm of their local Java counterparts for at least three reasons: Firstly, the absence of a global thread identity causes problems when reentering monitors. Secondly, blocks synchro...
متن کاملA Concept of Replicated Remote Method Invocation
In this paper we present a new infrastructure for building distributed applications that communicate through remote objects. The objects are available by the use of the Java RMI, enhanced by replication. Shared objects may be arbitrary complex with references to other objects allowing nested invocations. The replication process may be controlled and tuned by careful design of shared objects gra...
متن کامل