The problems with the Blackboard server was traced by Blackboard support to some configuration parameters that were not set to optimal levels. these parameters were adjusted, and the problem should be resolved.

Parameters that were changed:

Within the bb-datastores.xml file:

&ltdata-store key=”oracle-template” app-name=”bb5″ type=”oracle” version=”25″&gt
…..
&ltproperty name=”min-pool-size” value=”100″ /&gt (originally 1)
&ltproperty name=”max-pool-size” value=”400″ /&gt (originally 10)

Within the server.xml for Tomcat

&lt!– Coyote/JK2 AJP 1.3 Connector on port 8007 –&gt
…

port=”8007″
minProcessors=”100″ (originally 50)
maxProcessors=”400″ (originally 100)