-Dcom.ibm.CORBA.MinOpenConnections

This system property determines the desired minimum number of in-use connections that are to be kept in the connection cache table at any one time.

-Dcom.ibm.CORBA.MinOpenConnections=<number>: Where <number> is the number of connections in the range 0 - 2147483647. The default value is 100.
Note: The ORB cleans up only connections that are not busy from the connection cache table, if the size is of the table is larger than <number>.