Page Comparison

...

1. Ensure that the environment variables are set correctly:
   
   

   Excerpt-include

   Variable

   Preparations

   Description

   Preparations

   MZ_HOMEThis environment variable specifies where the software is installed.JAVA_HOMEThis environment variable specifies where the JDK is installed.PATHThis environment variable specifies the search path and must contain the following directories: $JAVA_HOME/bin:$MZ_HOME/bin

   name upgrade_variables nopanel true

   
   

   Info
   title Example - Setting Environment Variables
   Code Block language text theme Eclipse export MZ_HOME=/opt/mz export JAVA_HOME=/opt/jdk/jdk1jdk-17.80.0_1212 export PATH=$JAVA_HOME/bin:$MZ_HOME/bin:$PATH

   
   

   Note
   title Note!
   You must specify the Java version required for the version that you are upgrading from.

   
   

2. Make a backup of all your configurations with System Export.

   Code Block
   language text theme Eclipse
   $ mzsh mzadmin/<password> systemexport <backup directory>/<filename>

   
   

   Note
   title Note!
   These configurations must be imported after the upgrade.

   
   

3. For safety, make an online backup of the database(s). For information about how to perform an online backup, see 7. Backup and Disaster and Backup Recovery Procedures (SP 8.2.1.0) in the /wiki/spaces/MD82/pages/3778529.
    

4. If you are performing an upgrade of a system with large configurations, you may need to increase the maximum number of file descriptors.

   Info
   title Example - Changing the Maximum Number of File Descriptors on Linux.
   Code Block language text theme Eclipse $ cat /proc/sys/fs/file-max 5000 $ su - root Password: $sysctl -w fs.filemax=10000