Concurrency management in cluster computing of business applications

A system comprising:

• data storage to store a pool of objects shared by a plurality of users;
• and
• a management server coupled to the data storage, the management server comprising a lock manager to manage a plurality of lock entries that are used by multiple threads to update the objects, the multiple threads including a main thread and one or more parallel threads, the lock entries comprising:
• a thread dependent lock indicator associated with each of the multiple threads, the thread dependent lock indicators identified by a virtual lock owner, the lifetime of each thread dependent lock indicator coupled with the lifetime of the associated thread;
• and
• locks on the objects, the locks to be released when the main thread terminates normally and none of the thread dependent lock indicators with the virtual lock owner remain.

A computer-readable storage medium including instructions that, when executed by a processing system, cause the processing system to perform a method comprising:

• creating a virtual lock owner for a main thread of a processing task to access a common pool of objects shared by a plurality of users;
• creating one or more parallel threads from the main thread to update the objects with locks on the objects;
• associating each of the main thread and the parallel threads with a thread dependent lock indicator identified by the virtual lock owner, the lifetime of the thread dependent lock indicator coupled with the lifetime of the associated thread;
• and
• releasing the locks on the objects when the main thread terminates normally and none of the thread dependent lock indicators with the virtual lock owner remain.