Operating logging for online recovery in shared memory information systems
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United States of America Patent
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Jun 15, 2010
Grant Date -
Apr 20, 2006
app pub date -
Oct 14, 2004
filing date -
Oct 14, 2004
priority date (Note) -
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Abstract
Clients are permitted to directly attach to a client server system. An oplog management system tracks changes as clients make the changes to control structures of the direct connection client server system. The Oplogging system stores changes in oplogs. Then, if a client fails, the Oplogging system can repair the control structures, either by undoing the changes made by the client, or else completing the changes in place of the client; depending upon principles defined.
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