Data replication protocol with efficient update of replica machines
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United States of America Patent
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Aug 16, 2016
Grant Date -
May 22, 2014
app pub date -
Mar 15, 2013
filing date -
Nov 6, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
Steady state data distribution is provided between a client application, a leader machine, and a plurality of replica machines. The distribution comprises the leader machine receiving an operation request from the client application, the leader machine sending the prepare message to each of the plurality of replica machines, the replica machines recording in their logs information on the operation, the replica machines sending acknowledgement messages to the leader machine, and the leader machine sending commit command messages to the replica machines. A new quorum of the replica machines is created by using log information. Replica machines that become part of the new quorum are updated in an efficient manner.
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