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revision 1.83 by tjl, Sun Nov 2 20:02:07 2003 UTC revision 1.84 by tjl, Sun Nov 2 20:06:53 2003 UTC
# Line 73  In *Oceanstore* [kubiatowicz00oceanstore Line 73  In *Oceanstore* [kubiatowicz00oceanstore
73  *primary replica*, a small set of servers that  *primary replica*, a small set of servers that
74  maintain the current version of the document.  maintain the current version of the document.
75  To make the connection between document and version,  To make the connection between document and version,
76  the primary replia signs *heartbeats*, tuples  the primary replica signs *heartbeats*, tuples
77  containing a document id, the hash of a version,  containing a document id, the hash of a version,
78  a timestamp and a serial version number.  a timestamp and a serial version number.
79  To obtain the most current version, one sends a request  To obtain the most current version, one sends a request
80  to the primary replica. Many applications, however,  to the primary replica. Many applications, however,
81  are believed to be able to cope with loser consistency  are believed to be able to cope with looser consistency
82  semantics; the NFS client for CFS only requests  semantics; the NFS client for CFS only requests
83  new heartbeats less than 30 seconds old.  new heartbeats less than 30 seconds old.
84  Oceanstore is unique among the versioned P2P systems  Oceanstore is unique among the versioned P2P systems

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