Distributed lock manager: Difference between revisions

Revision as of 00:32, 2 December 2008

Revision as of 21:59, 13 December 2008

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===Resources===

The DLM uses a generalised concept of a '''resource''', which is some entity to which shared access must be controlled. This maycan relate to a file, a record, or an area of shared memory, butor cananything be anythingelse that the [[application software|application]] designer chooses. A hierarchy of resources may be defined, so that a number of levels of locking can be implemented. For instance, a hypothetical [[database]] might define a resource hierarchy as follows:

*Database