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Extending the Coda File System to handle cache misses on isolated clients

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1 Author(s)
Inamura, H. ; NTT Inf. & Commun. Syst. Labs., Kanagawa, Japan

For mobile information access, client caching is widely used for coping with server unavailability due to temporary disconnection of the network. Cache-miss is the most visible phenomenon to users caused by the disconnection. When multiple clients are isolated from servers, cache-miss happening on a client can be fulfilled using cache contents on other clients. Using a mechanism called disconnected operation, clients of the Coda File System can continue to work without contacting servers; however, clients cannot pass files between them by themselves. This paper presents the design and implementation of two mechanisms: import/export and session server. These mechanisms add read-sharing capability for clean objects to clients disconnected from Coda servers with reasonable response time

Published in:

Reliable Distributed Systems, 1998. Proceedings. Seventeenth IEEE Symposium on

Date of Conference:

20-23 Oct 1998