GT.M memory leak in listeners

[Derek_]

Long running processes that listen on a port, the brokers and HL interfaces, have been found to accumulate system memory without freeing it over time. Jeff and FIS have found the source of the memory leak to be in GT.M itself in the code handling ZSHOW "D" for sockets. And they have come up with strategies for a workaround. The OpenVista code where this happens is in ZISTCPS.

The fix in GT.M is expected in the upcoming release of GT.M. For the time until that version is released by Fidelity and packaged into this project, we will need to provide a workaround in the MUMPS code of this project.