Hi Thorsten,
we are using MaxDB in an non SAP environment. Therefore I can not access SAP note 1243937 (FAQ: SAP MaxDB/liveCache SQL-, Object Locks)!
I have queried the all internal system tables. 'Lockstatistics' doesn't show any interesting issues and all 'domain.lock*' tables were empty.
Today we restarted the database due to a rollout, so I'll check the Database Analyzer file 'DBAN_RUNNING_COMMANDS' (it is available in our version) as soon as the next lock situations occur.
Thanks
Hannes