| 摘要 |
<p>Load balancing in an enterprise data management system 10, such as a SAP (RTM) system, comprising memory 12, central processor 16, and data processors 14-n. Each data processor processes an interval of data and outputs results stored in the memory. The central processor selects set of data-processors to process the data intervals for program instances (queries) requested by user 18-n. If system load is greater than a threshold, the central processor reduces the number of processors in the set. Central processor 16 also monitors total number of processors and allocates a subset of processors to achieve a predetermined load. It also alters the processors in the set upon detecting a change in their total number such that the proportion remains constant. By storing output of each processed interval central processor load-balances when receiving data-processing requests and alters load distribution responding to further requests or changes in availability of data-processors.</p> |
