Replication Index Based Consistency Maintenance Strategy in Unstructured P2P Systems
Ouyang Song · Jisuanji gongcheng · 2008
With the P2P application transferring from read-only static files sharing to read-write dynamical files interacting, maintaining consistency between frequently-updated files is very important. This paper presents a replication index based consistency maintenance strategy. When a node downloads files from the seed node or other replication nodes, the node sends its address to the seed node, and seed node saves the address in its replication index table. When a node’s vision of the replication is newer, the node sends update message to seed node. According to the vision of the replication, the seed node decides whether to do the consistency maintenance. Experimental results show that the replication index based strategy can largely reduce the number of the duplicated messages. It can obviously improve the coverage.