Hi. That sounds like a severe problem. May you please create a bug in our Jira at https://jira.percona.com/projects/PMM? And please also attach a memory profile file. You can create it with curl http://127.0.0.1:42001/debug/pprof/heap > heap.pb.gz where 42001 is a mysqld_exporter port. That file will not contain any sensitive information.