Timeouts when the server is under heavier load than usual

Question

A customer contacted us with the following issue:

We are running Enterprise 22.0.2 and just put a heavier load on it. We are using API integration for everything and we are seeing Login Timeouts when we get to about session # 1500. Below that, it works exactly as expected. It has always worked w/o a problem at a lower load.

Answer 1

The customer solved the problem themselves by setting connectionManagement parameters in CompleteFTPService.exe.config as below, which resolved the issue:

<system.net>
<connectionManagement>
<add address="*" maxconnection="10000"/>
</connectionManagement>
</system.net>

Apparently, the default is 2 if it is not set, and this is a limitation on outgoing connections from the server.

Comments

Just a note from the ECGrid TechOps team where we found and solved this problem. 10,000 is probably an extremely high number; we just didn't want to take any chances getting back online when we increased our server load. I suspect 1,000 would be more than enough in most cases.

This can also be set in the ServicePointManager within the code. This could then be a configurable setting from the UI.

ECGrid TechOps