IPC분류정보
| 국가/구분 |
United States(US) Patent
등록
|
| 국제특허분류(IPC7판) |
|
| 출원번호 |
UP-0370585
(2006-03-08)
|
| 등록번호 |
US-7685367
(2010-04-21)
|
|
발명자
/ 주소 |
- Ruia, Anil K.
- Olson, Erik B.
- Volodarsky, Michael
|
| 출원인 / 주소 |
|
| 대리인 / 주소 |
|
| 인용정보 |
피인용 횟수 :
28 인용 특허 :
14 |
초록
▼
A method for caching data may be practiced, for example, in a computing environment including a server system that provides data to client systems. The server system includes a number of caches for storing data. The method allows a least expensive cache to first cache data or return data requested b
A method for caching data may be practiced, for example, in a computing environment including a server system that provides data to client systems. The server system includes a number of caches for storing data. The method allows a least expensive cache to first cache data or return data requested by a client. The method includes receiving data to be cached at a cache. The method further includes determining that the data has not been previously cached at a preceding cache. If the data has not been previously cached at a preceding cache the data is cached at the cache. Alternatively, requests for data may be received at a first cache. If the data is at the first cache, the first cache returns the data. If the data is not at the first cache, the request for data is forwarded to a subsequent cache.
대표청구항
▼
What is claimed is: 1. In a computing environment including a server system that provides data to client systems and wherein the server system comprises a plurality of caches for storing data, a method of caching data requested by a client at a least expensive cache first, the method comprising act
What is claimed is: 1. In a computing environment including a server system that provides data to client systems and wherein the server system comprises a plurality of caches for storing data, a method of caching data requested by a client at a least expensive cache first, the method comprising acts of: receiving data to be cached at a cache; determining that the data has not been previously cached at a preceding cache; and when the data has not been previously cached at a preceding cache, then determining whether the cache includes functional capability for caching the data based on settings defining what particular types of data should be cached when generated by events, and by (i) comparing the functional capability of the cache with a common set of such settings as stored in an object applicable to the plurality of caches, the common set of such settings applying to all of the plurality of caches, and (ii) comparing the functional capability of the cache with a set of coordinated settings applicable to the plurality of caches, wherein the set of coordinated settings defines what particular types of data should be cached when generated by events and that are a collection of individual settings for each of the caches in the plurality of caches, and wherein comparing the functional capability of the cache with the common set of settings and the coordinated settings, includes considering at least the speed and/or expense of the cache; and then caching the data at the cache once the functional capability for caching the data has been determined. 2. The method of claim 1, wherein the cache at which the data is stored is a subsequent cache, and the preceding cache is a less costly cache than the subsequent cache. 3. The method of claim 1, wherein the cache is a subsequent cache that is hierarchically preceded by a preceding cache, and wherein receiving data to be cached at a cache comprises receiving the data at the subsequent cache, which data is received from the preceding cache which forwards the data to the subsequent cache after determining that the preceding cache determined that it will not cache the data. 4. The method of claim 1, wherein: the common set of settings and the set of coordinated settings are accessed by consulting the object, which object is a cache policy object; and caching the data at the cache is performed when the settings stored in the cache policy object indicate that the data should be cached. 5. The method of claim 1, wherein receiving data to be cached at a cache comprises receiving the data from a preceding cache. 6. The method of claims 2 or 5, wherein the preceding cache is a web server cache and the subsequent cache is an application level cache. 7. The method of claims 2 or 5, wherein the preceding cache is a native cache and the subsequent cache is a managed cache. 8. A computer readable medium having a plurality of data structures stored thereon, the plurality of data structures comprising: a plurality of hierarchically related caches comprising, a first cache having a first speed; and a second cache having a second speed that is slower than the first cache, and wherein the second cache is structured because of its lower speed lower in the hierarchy than the first cache, so that the first cache receives data and requests for data prior to the second cache; and a policy object which holds data defining settings for the plurality of caches and in terms of what particular types of data should be cached when generated by the events, and so that when data is sent to a cache, that cache can then either cache the data or not by referencing the policy object for that cache, and wherein the first cache and the second cache are structured such that when data that is to be cached is determined by the first cache in the hierarchy, and by using the policy object, to be of type that cannot be cached by the first cache, the data is then automatically passed to the second, hierarchically lower cache for determination by the second cache, using the policy object, whether it can be cached at the second cache. 9. The computer readable medium of claim 8, further comprising computer executable instructions for generating and/or retrieving data. 10. The computer readable medium of claim 8, further comprising computer executable instructions for generating policy information to be stored in the policy object. 11. In a computing environment including a server system that provides data to client systems and wherein the server system comprises a plurality of caches for storing data, a computer program product comprising a computer storage media containing executable instructions for implementing a method of caching data requested by a client at a least expensive cache first, and wherein the method is comprised of the acts of: receiving data to be cached at a cache; determining that the data has not been previously cached at a preceding cache; and when the data has not been previously cached at a preceding cache, then determining whether the cache includes functional capability for caching the data based on settings defining what particular types of data should be cached when generated by events, and by (i) comparing the functional capability of the cache with a common set of such settings as stored in an object applicable to the plurality of caches, and (ii) comparing the functional capability of the cache with a set of coordinated settings applicable to the plurality of caches, wherein the set of coordinated settings defines what particular types of data should be cached when generated by events and are a collection of individual settings for each of the caches in the plurality of caches, and where in comparing the functional capability of the cache with the common set of settings and the coordinated settings, includes considering at least the speed and/or expense of the cache; and then caching the data at the cache once the functional capability for caching the data has been determined.
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