Query governor with network monitoring in a parallel computer system

A computer implemented method for governing access to data on a partitioned database comprising the steps of:

• receiving a query to the database;
• monitoring at least one network connected to a plurality of nodes each having a memory and at least one processor to gather network data;
• storing network data in a network file;
• and
• governing the query's execution to access the database over the at least one network based on network data in the network file.

A computer-readable program product for executing on a parallel computer system with a plurality of compute nodes comprising:

• a network monitor that monitors at least one network connecting the plurality of compute nodes and stores network data in a network file;
• a query governor that governs whether a query can access the database over the at least one network based on the data in the network file;
• and
• computer-readable medium in which computer instructions are stored, which instructions, when read by a computer, cause the computer to perform the steps of the query governor.