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Error when starting the Pega server



Error when starting the Pega server.

Error Messages

Cannot create JDBC driver of class '' for connect URL 'null'
java.sql.SQLException: No suitable driver
[localhost-startStop-1] com.pega.pegarules.internal.bootstrap.PRBootstrap. PRBootstrap.calculateEngineCodeVersionFromDB() - unable to calculate codeset version from database: Cannot create JDBC driver of class '' for connect URL 'null'
[localhost-startStop-1] com.pega.pegarules.internal.bootstrap.PRMiniLoader. Will load phase 2 bootstrap from Pega-EngineCode:
[localhost-startStop-1] com.pega.pegarules.internal.bootstrap.PRMiniLoader. PRMiniLoader - unable to load classes from the database: Cannot create JDBC driver of class '' for connect URL 'null'
/local/web/tomcat8inst0/webapps/preweb/WEB-INF/lib/boot/prbootphase2.jar (No such file or directory)
Perhaps executing with a non-standard classpath (e.g. JUnit tests)?
java.sql.SQLException: Cannot create JDBC driver of class '' for connect URL 'null'
        at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createConnectionFactory(
        at org.apache.tomcat.dbcp.dbcp2.BasicDataSource.createDataSource(

Steps to Reproduce

Start the Pega server.

Root Cause

Tomcat was unable to find the keystore in its file directory.


Perform the following local-change:

Utilize the below Dynamic System Setting (DSS), which allows Tomcat to locate the file location:

RuleSet: Pega-Engine
Setting Purpose*: prconfig/dnode/cassandra_client_encryption/keystore/default 
Value: conf/ keystore

RuleSet: Pega-Engine
Setting Purpose: prconfig/dnode/cassandra_client_encryption/keystore_password/default 
Value: <password>


Published December 2, 2021

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