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THE GRID PROTOCOL - A HIGH-PERFORMANCE SCHEME FOR MAINTAINING REPLICATED DATA
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DOI：10.1109/69.180609.png)
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Abstract
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We present a new protocol for maintaining replicated data that can provide both high data availability and low response time. In the protocol, the nodes are organized in a logical grid. Existing protocols are designed primarily to achieve high availability by updating a large fraction of the copies which provides some (although not significant) load sharing. In the new protocol, transaction processing is shared effectively among nodes storing copies of the data and both the response time experienced by transactions and the system throughput are improved significantly. We present an analysis of the availability of the new protocol and use simulation to study the effect of load sharing on the response time of transactions. We also compare the new protocol with a voting-based scheme.
Keywords:
DATA REPLICATION
AVAILABILITY
RESPONSE TIME
WEIGHTED VOTING
QUORUM CONSENSUS
LOAD SHARING
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