Upgrading from 3.2. to 3.6 on RHEL 7.9 the performance center upgrade hangs.
ps -ef --forest we can see it is stuck on:
unzip -l /tmp/da-rib-docs.jar
Release : 3.2 upgrade to 3.6
Killing the unzip of the ribdocs allowed the upgrade to progress.
It may mention this a s failure in the upgrade logs, but after startup the rib docs will be populated form the Data Aggregator.
This was meant as a means to try and speed up that process.