Patent ID: 7457236
Filing Date: 2008-11-25
Classification: H04L

Abstract:
1. A method for providing fault-tolerant application cluster service (APCS), suitable for use in a group in a cluster environment, wherein there are a plurality of nodes and a database independent of said nodes in said cluster environment, and said nodes belong to said group and a master node and a plurality of slave nodes are classified from said nodes, said method comprising: performing a node-clustering step for storing node information for each of said nodes into said database, wherein said node information includes a node ID and APCS service data; performing a slave-node detection step, wherein said slave-node detection step comprising: performing a master-node detection step, wherein, when the sending of said master heartbeat is interrupted due to said master node's errors, said timer will be stopped (“Timeout”) after each of said slave nodes has not received said master heartbeat for a period of time, and thus each of said slave nodes stops waiting for receiving said master heartbeat, and starts detecting if said master node is still in normal operation.