Electrical computers and digital processing systems: memory – Storage accessing and control – Hierarchical memories
Patent
1998-12-04
2000-11-28
Yoo, Do Hyun
Electrical computers and digital processing systems: memory
Storage accessing and control
Hierarchical memories
711124, 711130, 707205, G06F 1200
Patent
active
061548111
ABSTRACT:
A scalable distributed caching system on a network receives a request for a data object from a user. The caching system carries out a locator function that locates a directory cache for the object. The directory cache stores a directory list that identifies the locations of object caches that purport to store copies of the object requested by the user. The object caches on the object directory list are polled, and in response send messages to the cache that received the user request indicating if each object cache stores a copy of the requested object. The receiving cache sends a message requesting a copy of the object to the object cache that sent the message first received by the receiving cache indicating that an object cache stores the requested object. The object cache that sent the first received message then sends a copy of the object to the receiving cache, which stores a copy and then sends a copy to the user. The directory list for the object is then updated by adding the network address of the receiving cache. Outdated copies of objects stored on object caches are deleted in a distributed fashion to maintain the coherence of the cached copies. This is further reinforced by the association of time-to-live parameters with the each copy and each object cache address on directory lists.
REFERENCES:
patent: 5317739 (1994-05-01), Elko et al.
patent: 5452447 (1995-09-01), Nelson et al.
patent: 5493668 (1996-02-01), Elko et al.
patent: 5787470 (1998-07-01), DeSimone et al.
Chiang John J.
Dutta Partha P.
London Thomas B.
Srbljic Sinisa
Vrsalovic Dalibor F.
AT&T Corp.
Namazi Mehdi
Yoo Do Hyun
LandOfFree
Scalable network object caching does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Scalable network object caching, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Scalable network object caching will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1735808