System and method for achieving deferred invalidation consistency
First Claim
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1. In a system having a plurality of storage elements, a method for maintaining stored objects in the plurality of storage elements, comprising the steps of:
- storing an object in a plurality of storage elements;
in response to a request to update the object, determining a future invalidation time when the object should be invalidated in storage elements currently storing the object; and
delaying updating the object until the invalidation time has passed.
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Abstract
In a system having a plurality of caches, a method for maintaining cached objects includes storing an object in a plurality of caches. In response to a request to update the object, a future invalidation time is determined when the object should be invalidated in caches currently storing the object. Updating of the object is delayed until the invalidation time has passed.
35 Citations
28 Claims
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1. In a system having a plurality of storage elements, a method for maintaining stored objects in the plurality of storage elements, comprising the steps of:
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storing an object in a plurality of storage elements;
in response to a request to update the object, determining a future invalidation time when the object should be invalidated in storage elements currently storing the object; and
delaying updating the object until the invalidation time has passed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for a method for maintaining stored objects in a plurality of storage elements, the method steps comprising:
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storing an object in a plurality of storage elements;
in response to a request to update the object, determining a future invalidation time when the object should be invalidated in storage elements currently storing the object; and
delaying updating the object until the invalidation time has passed.
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11. A method for maintaining stored objects comprising the steps of:
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providing a plurality of storage elements;
storing an object in a plurality of storage elements;
requesting an update for the object;
determining a future invalidation time when the object is to be invalidated in storage elements currently storing the object; and
delaying updating the object until the invalidation time has passed. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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20. A program storage device readable by machine, tangibly embodying a program of instructions executable by the machine to perform method steps for method for maintaining stored objects, the method steps comprising:
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providing a plurality of storage elements;
storing an object in a plurality of storage elements;
requesting an update for the object;
determining a future invalidation time when the object is to be invalidated in storage elements currently storing the object; and
delaying updating the object until the invalidation time has passed.
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21. A system for maintaining stored objects consistently, comprising:
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at least one object;
a plurality of storage elements for storing the object; and
a consistency coordinator which receives a request to update the object from at least one the storage elements and in response determines a future invalidation time when the object should be invalidated in storage elements currently storing the object;
the storage elements delaying updating the object until the invalidation time has passed. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28)
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Specification