sort.ioBuffer

String

0

The buffer size (in bytes) used for all I/O operations initiated by the Sort operator. The given value can be specified using a numeric value and k, m, or g for kilobytes, megabytes, and gigabytes, respectively. The default size is zero, indicating that the framework should determine the buffer size at run time based on current resource availability.

sort.maxMerge

int

0

The maximum number of intermediate sort segments to merge concurrently. Tune this setting to control the resources required to merge sorted segments to create the final sorted result.

sort.sortBuffer

String

0

The size of the buffer used to sort data in memory. Data is read into this buffer, sorted, and then cached to disk as needed for later merging. A larger buffer usually provides better performance, as more data can be sorted in memory and fewer sorted segments need to be merged to create the final sorted result.