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The upgrade from Tomcat 8 to Tomcat 9 is part of the upgrade to Abiquo 5.2.x and environments using HTTPS TLS between the Tomcat servers. (See Configure Abiquo Tomcat with HTTPS for Remote RS)

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  • The Catalina connector for HTTPS will be lost on upgrade
  • The new secretRequired option is not present
  • AJP Connector on Tomcat9 won't allow external connections by default. 
  • During the upgrade from Java 8 to Java 11, the default keystore folder location changes, for example: 
    • OLD: keystoreFile="/usr/java/default/jre/lib/security/cacerts"
      NEW: keystoreFile="/usr/java/default/lib/security/cacerts"


Before you start the upgrade, do these steps.

  1. On each tomcat Tomcat server, from the /opt/abiquo/tomcat/conf folder, back up the server.xml files. For example, for the API server:

    Code Block
    # cd /opt/abiquo/tomcat/conf
# cp server.xml ~/server.api.backup.xml

    You will need to restore these files after the upgrade.

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