1.107 MAP_PARALLELISM

Valid for

Parallel Replicat

Description

Configures number of mappers. It controls the number of threads used to read the trail file. The minimum value is 1, maximum value is 100 and the default value is 2. Increasing this parameter directly impacts the trail files. On a physical disk drive, you will start seeing IO contention if you use more than 4 or 5 mappers. If it’s in solid state, you can increase the value a bit higher before seeing IO contention. However, this depends on how much IO contention you need.

Syntax

MAP_PARALLELISM value 

Examples

MAP_PARALLELISM 3