DTX_SQLSVR_CONN_LIMIT

By default, Microsoft™ SQL Server allows twenty-five simultaneous connections. If this is insufficient because of the need to simultaneously execute a large number of maps, the limit can be increased by defining the DTX_SQLSVR_CONN_LIMIT environment variable. For example, if you set it to 100 (DTX_SQLSVR_CONN_LIMIT=100), you would allow up to 100 connections.