There have been many issues on CUCM in regards to logging partition or high CPU because of a few services have trace level set to Debug. By default the trace level is Info, and it should be kept in that way unless you have been advised by TAC or if you are troubleshooting any issue.
To check the settings:
CUCM >>> Unified reporting >>> System Reports >>>> Unified CM Cluster Overview >>>> Scroll to the bottom and look for "Unified CM Trace Information"
Refer to the screenshot below:
