(Previously, Memcached was only recommended and not required.)
Starting with Jamf Pro 10.46.0, Memcached is required for clustered and multi-context environments. For non-clustered environments, ehcache is used by default.
If your environment is clustered with multiple nodes and is currently using ehcache and not Memcached, you must install and configure Memcached for your environment to continue to function normally.
No action is required if you have only a single Jamf Pro node and are not clustered.
For instructions on installing and configuring Memcached, see :