Help with Harweb Installation

Document ID : KB000124274
Last Modified Date : 09/01/2019
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Issue:
I have new instance of Harweb to install on WIndow 2016 server. I have installed R13.0.3 workbench, Tomcat 7 and Harweb. I am getting error 500, can't get hDB from pool error message. I have compared all that i can think of to system running Windows 2008 and can't find differences that should matter (database hostname, SID, etc are different).
Environment:
Windows Server 2008
CA Harvest SCM v13.0.3
Tomcat v7
JDK v 7
Oracle V12.x (jdbc jar file only)
Cause:
We found that he had installed 32-bit Tomcat and 32-bit Java, but 64-bit SCM Client.  All components must be at the same bit level.
Resolution:
Uninstalled 64-bit SCM Client and installed 32-bit SCM Client.  This resolved the problem.