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Fragment Reconstruction: Providing Global Cache Coherence in a Transactional Storage System
 

Summary: Fragment Reconstruction: Providing Global Cache Coherence in a
Transactional Storage System
Atul Adya Miguel Castro Barbara Liskov Umesh Maheshwari Liuba Shrira
Laboratory for Computer Science
Massachusetts Institute of Technology
Cambridge, MA 02139
Abstract
Cooperative caching is a promising technique to avoid
the increasingly formidable disk bottleneck problem in dis-
tributed storage systems; it reduces the number of disk ac-
cesses by servicing client cache misses from the caches
of other clients. However, existing cooperative caching
techniques do not provide adequate support for fine-grained
sharing. In this paper, we describe a new storage system
architecture, split caching, and a new cache coherence pro-
tocol, fragment reconstruction, that combine cooperative
caching with efficient support for fine-grained sharing and
transactions. We also present the results of performance
studies that show that our scheme introduces little overhead
over the basic cooperative caching mechanism and provides

  

Source: Adya, Atul - Google Labs

 

Collections: Computer Technologies and Information Sciences