Considerations Sizing in HAFT Installations
When sizing your environments, set the CPU maximum loading to 75% for any single TIBCO MDM node when one or more of the other nodes fail.
CPU usage is much lower in normal operation, but in this type of sizing the application can perform without degradation in case of failure. Contact TIBCO support for assistance in setting up your environment.
Set up a web server or load balancer to equally distribute the load among all TIBCO MDM instances. Ensure that sticky sessions are configured. Sticky sessions mean that once a session is started on one of the TIBCO MDM instances all subsequent requests for that session will be sent to same TIBCO MDM instance.
Size the cache to keep all the master data in memory. If the required memory is greater than 16 GB, consider using an external cache server (and switching TIBCO MDM to use leech mode). External cache servers maintain cached data even when TIBCO MDM is restarted, to avoid reloading.
Use the disk sizing spread sheet provided by TIBCO Support to estimate the disk space required, as the space requirement depends on your repository definitions.