When the work involved in a join is partitioned among multiple processors in the parallel join, the skew in the operand relations can result in significant imbalance in the work assigned to the different processors. This imbalance can cause significant degradation in the response time for the join operation.
Published in:
Parallel Processing, 1993. ICPP 1993. International Conference on
(Volume:3
)
Date of Conference: 16-20 Aug. 1993