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Sets the size of the hash table used by the Greenplum Database to track interconnect connections when gp_interconnect_type is UDP or UDPIFC. This number is multiplied by the number of segments to determine the number of buckets in the hash table. Increasing the value may increase interconnect performance for complex multi-slice queries (while consuming slightly more memory on the segment hosts).

Value Range Default Set Classifications
2-25 2 master