uimapi calls start failing after a few days

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

After around 7 to 10 days some uimapi calls fail, yet others still work. 

For example GET Origins, will always fail. 

Cause

wasp can no longer make the calls to the database, so the uimapi calls that are direct to the database such as 'origins' fail. 

Environment

Release : 20.3

Component : UIM - WEBSERVICES_REST

Resolution

Temporary fix is to restart wasp. 

The permanent fix was to make these changes to wasp.cfg:
dbcp_max_wait = 30000
dbcp_max_idle = 50
dbcp_max_active = 300