System and method for signaling dynamic reconfiguration events in a middleware machine environment

摘要

A system and method can provide fault tolerance in a middleware machine environment. A subnet manager can determine whether there is a path record change when a fault occurs in the middleware machine environment. Furthermore, the subnet manager can signal a dynamic reconfiguration event to at least one host in the middleware machine environment. The at least one host can send a message to the subnet manager to query for a latest path record. Then, the subnet manager can provide a latest path record to the at least one host.

主权项

1. A method for providing fault tolerance in a middleware machine environment, comprising:
identifying, via a subnet manager, an update in a path record, wherein the update is caused by a network configuration triggered by a fault or change in a subnet in a middleware machine environment, wherein the path record is a data structure including information for establishing a queue pair for communication between nodes in the subnet; signaling, via the subnet manager, an event indicating the subnet has been reconfigured, to a node in the subnet, wherein the node queries the subnet manager or a database associated therewith for the updated path record; and providing, via the subnet manager, the updated path record to the node; wherein the node uses the updated path record to reconfigure the node.