Version management of cached permissions metadata

Details Version management of cached permissions metadata Version management of cached permissions metadata

2003-05-30

2008-09-02

Peikari, B. James (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Hierarchical memories

C707S793000, C707S793000, C711S119000, C711S163000

Reexamination Certificate

active

07421541

ABSTRACT:
Techniques are provided for performing transaction-aware caching of metadata in an electronic file system. A mechanism is described for providing transaction-aware caching that uses a cache hierarchy, where the cache hierarchy includes uncommitted caches associated with sessions in an application and a committed cache that is shared among the sessions in that application. Techniques are described for caching document metadata, access control metadata and folder path metadata. Also described is a technique for using negative cache entries to avoid unnecessary communications with a server when applications repeatedly request non-existent data.

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