Since you can increase and decrease log levels in runtime for all processes or optional target processes, it would be a nice-to-have feature to be able to retrieve the status of the log levels in runtime as well. To have a command along the lines of 

zabbix_server -R log_level_get[=<target>]

to be able to see what the log levels are for each process. 

It would be a helpful tool when troubleshooting log growth, for example.