@Joern,
The issue seems to be related to https://bugs.launchpad.net/percona-server/+bug/1040735 based on the pattern of lock waits and areas where it is being seen.
@Joern,
The issue seems to be related to https:/ /bugs.launchpad .net/percona- server/ +bug/1040735 based on the pattern of lock waits and areas where it is being seen.