Method and apparatus for coordinating access to a shared object amongst a plurality of processes in a distributed system. One process is identified as a lock owner process controlling a lock associated with the shared object. When a process needs to access the shared object, it requests control of the...http://www.google.de/patents/US6141720?utm_source=gb-gplus-sharePatent US6141720 - Method and apparatus for coordination of a shared object in a distributed system
