Fragmentation: a technique for efficient query processing
ACM Transactions on Database Systems (TODS)
Comparative benchmarking of relational database systems
Comparative benchmarking of relational database systems
The iPSC/2 direct-connect communications technology
C3P Proceedings of the third conference on Hypercube concurrent computers and applications: Architecture, software, computer systems, and general issues - Volume 1
Effect of skew on join performance in parallel architectures
DPDS '88 Proceedings of the first international symposium on Databases in parallel and distributed systems
A hash-based join algorithm for a cube-connected parallel computer
Information Processing Letters
SIGMOD '89 Proceedings of the 1989 ACM SIGMOD international conference on Management of data
Database Operations in a Cube-Connected Multicomputer System
IEEE Transactions on Computers
Proceedings of the sixteenth international conference on Very large databases
An adaptive data placement scheme for parallel database computer systems
Proceedings of the sixteenth international conference on Very large databases
SIGMETRICS '90 Proceedings of the 1990 ACM SIGMETRICS conference on Measurement and modeling of computer systems
An effective algorithm for parallelizing sort merge joins in the presence of data skew
DPDS '90 Proceedings of the second international symposium on Databases in parallel and distributed systems
Load balancing algorithms for parallel database processing on shared memory multiprocessors
PDIS '91 Proceedings of the first international conference on Parallel and distributed information systems
Interconnecting shared-everything systems for efficient parallel query processing
PDIS '91 Proceedings of the first international conference on Parallel and distributed information systems
Implementation techniques for main memory database systems
SIGMOD '84 Proceedings of the 1984 ACM SIGMOD international conference on Management of data
Hash-Based and Index-Based Join Algorithms for Cube and Ring Connected Multicomputers
IEEE Transactions on Knowledge and Data Engineering
Prototyping Bubba, A Highly Parallel Database System
IEEE Transactions on Knowledge and Data Engineering
The Gamma Database Machine Project
IEEE Transactions on Knowledge and Data Engineering
Limiting Factors of Join Performance on Parallel Processors
Proceedings of the Fifth International Conference on Data Engineering
An Effective Algorithm for Parallelizing Hash Joins in the Presence of Data Skew
Proceedings of the Seventh International Conference on Data Engineering
VLDB '88 Proceedings of the 14th International Conference on Very Large Data Bases
Handling Data Skew in Multiprocessor Database Computers Using Partition Tuning
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Performance Analysis of a Load Balancing Hash-Join Algorithm for a Shared Memory Multiprocessor
VLDB '91 Proceedings of the 17th International Conference on Very Large Data Bases
Dynamic Load Balancing in Multicomputer Database Systems Using Partition Tuning
IEEE Transactions on Knowledge and Data Engineering
Dynamic Multi-Resource Load Balancing in Parallel Database Systems
VLDB '95 Proceedings of the 21th International Conference on Very Large Data Bases
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Two relational join strategies, broadcast-based join and bucket-based join, have been recently proposed for the hypercube interconnection topology. The first strategy, however, incurs many unnecessary comparisons of pairs of tuples of the two relations. Although the second technique compares only tuples of the relevant buckets, it may suffer from potential load imbalance, which is most critical to the performance of a shared-nothing system. To address these issues, a join algorithm for hypercube computers which includes dynamic load balancing capabilities to minimize the effect of skewness in tuple distribution is proposed. Simulation results indicate that the scheme provides significant improvement over the bucket-based join strategy. In fact, the technique is consistently superior even when the skew condition is very mild.