ClearDB is one of the Data Management services of IBM Cloud, which is available and supported by GeneXus applications.
The "Spark DB" plan of ClearDB offers a proof of concept and initial development solution, so only four connections can be opened and each connection is killed after a short idle time.
The following figure shows what the plan offers:
As a consequence of the characteristics of this plan (which purpose if for doing development tests), the connection pool in GeneXus has to be configured in the following way:
Deploying to IBM Cloud prerequisites