@HeikoAnkenbrand very good explanation 🙂
In this case I suspect that the java process that consumes 452% in the first line of the top is actually the Solr process of the logging. The reason - the virtual memory of it is very large (almost 30GB) which is very typical to Solr in general. I believe that CPM is actually the java process in the 9th line.
@Wang , does your Management also act as a log server, or do you have an additional log server - separated from the Management? Also, how many CPU cores do you have?
If you could share another 'top' after pressing on 1 (to see the CPUs) and also pressing on 'c' to see the command lines of the processes - that would be great for sharing more insights.