Semantic Model: kyvos.indexing.map.distributed.mb

Description:

The property specifies the container memory for indexing jobs that are launched during full and/or incremental semantic model processing.

Values and behavior:
Any positive number represents the number of megabytes of container memory.

Default value:
Value configured in mapreduce.map.memory.mb

Scope:

• Connection: If the property is applied at the connection, then the containers of Mapper jobs will be launched with the same memory for all the cubes (if not applied to the cube).

• Semantic model: If the property is applied at the semantic model and connection both, then the value set at the semantic model will be respected for that particular semantic model.

Comes into effect:
The value of the property can be changed at any time and will come into effect after the next semantic model process instance.

Dependencies and related properties:

• The value of the kyvos.indexing.map.distributed.opts property should be 55-65% of the memory specified in this property.

• The default value takes the value specified in the mapreduce.map.memory.mb property.

Recommendation:

The property value should be configured considering the highest expected cardinality in the cube for any dimension or distinct count measure. 
Kyvos lab tested optimal settings: For a dimension/distinct count measure with a cardinality of 1 Billion, the property should be set to 25600 (25 GB).