max parallel degree  max resource granularity

Chapter 5: Setting Configuration Parameters

max repartition degree

Summary information

Default value

1

Range of values

1 – value of max parallel degree

Status

Dynamic

Display level

Comprehensive

Required role

System Administrator

Configuration group

Query Tuning

max repartition degree configures the amount of dynamic repartitioning Adaptive Server requires, which enables Adaptive Server to use horizontal parallelism. However, if the number of partitions is too large, the system is flooded with worker processes that compete for resources, which degrades performance. The value for max repartition degree enforces the maximum number of partitions created for these resources. If all of the tables and indices are unpartitioned, Adaptive Server uses the value for max repartition degree to provide the number of partitions to create as a result of re-partitioning the data.





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