Maintenance of materialized views over peer-to-peer data warehouse architecture

The view maintenance issues are very important in the data warehouse process as its goal to make the data warehouse always consistent with its sources but it generates big challenges in the P2P environments. The materialized views maintenance problem take a lot of attention in distributed data warehouse but in the Peer to peer (P2P) systems there is little attention to it. Thus, the Peer Joining Real Time Data Warehouse Algorithm (PJRT) is introduced to maintain the materialized views on our peerDW architecture that proposed in [1] in order to reduce the maintenance time in P2P architecture. The performance of the PJRT was measured by comparing it to the existing the view maintenance algorithm (VM) algorithm [2]. Then the PJRT is compared to The Joining Real Time Data Warehouse Algorithm (JRT) that work upon Distributed DW and proposed in [3] to observe the effect of the peer architecture on the maintenance time.