SYSTEM AND METHOD FOR PERSISTENCE OF APPLICATION DATA USING REPLICATION OVER REMOTE DIRECT MEMORY ACCESS

摘要

In accordance with an embodiment, described herein is a system and method for enabling persistence of application data, using replication over a remote direct memory access (RDMA) network. In an enterprise application server or other environment having a plurality of processing nodes, a replicated store enables application data to be written using remote direct memory access to the random access memory (RAM) of a set of nodes, which avoids single points of failure. Replicated store daemons allocate and expose memory to client applications via network endpoints, at which data operations such as reads and writes can be performed, in a manner similar to a block storage device. Resilvering can be used to copy data from one node to another, if it is determined that the number of data replicas within a particular set of nodes is not sufficient to meet the persistence requirements of a particular client application.

主权项

1. A system for enabling persistence of application data, using replication over a remote direct memory access network, comprising:
a plurality of processing nodes, wherein each processing node includes a processor and a physical memory, and executes one or more application server instances and client applications; a plurality of replicated store daemons, including a replicated store daemon associated with each processing node; wherein each application server instance includes a replicated store library that enables access by client applications at that application server to one or more replicas of a replicated store; and wherein, at each processing node, the replicated store daemon associated with that processing node
accesses replicated store replicas at that processing node, anduses remote direct memory access to transfer application data between replicated store replicas at local and remote processing nodes, and to physical memory at the local and remote processing nodes, and to respond to requests received from the client applications to access the replicated store.