Retrieves or sets the auto broadcast join threshold
R/spark_context_config.R
spark_auto_broadcast_join_threshold
Description
Configures the maximum size in bytes for a table that will be broadcast to all worker nodes when performing a join. By setting this value to -1 broadcasting can be disabled. Note that currently statistics are only supported for Hive Metastore tables where the command ANALYZE TABLE <tableName> COMPUTE STATISTICS noscan has been run, and file-based data source tables where the statistics are computed directly on the files of data.
Usage
spark_auto_broadcast_join_threshold(sc, threshold = NULL) Arguments
| Arguments | Description |
|---|---|
| sc | A spark_connection. |
| threshold | Maximum size in bytes for a table that will be broadcast to all worker nodes when performing a join. Defaults to NULL to retrieve configuration entries. |
See Also
Other Spark runtime configuration: spark_adaptive_query_execution(), spark_advisory_shuffle_partition_size(), spark_coalesce_initial_num_partitions(), spark_coalesce_min_num_partitions(), spark_coalesce_shuffle_partitions(), spark_session_config()