Efficient and Semantic OLAP Aggregation Queries in a Peer to Peer Network
Keywords:
Aggregate queries, distributed data cache, peer to peer network, replacement policy, trackercacheAbstract
This paper presents TrackerCache system - a
Peer to Peer (P2P) system for efficient serving OLAP queries and aggregation of data cubes in distributed data sharing system. TrackerCache system provides a central component called tracker, which acts as a directory, keeping track of all submitted queries and a list of peers caching their results. The key idea is to enable peers to share their local caches, to form
an efficient and semantic distributed cache sharing system. For this issue, a query forwarding policy is introduced. To face inconsistent information in the client side cache, we proposed a knowledge replacement policy based on Binary Decision Tree (BDT) to evict unwanted data. Then, we present experimental
evaluations to demonstrate the efficiency of our proposed solutions.
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