Leader election in distributed computer system
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United States of America Patent
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Jul 17, 2018
Grant Date -
May 18, 2017
app pub date -
Nov 12, 2015
filing date -
Nov 12, 2015
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Abstract
Particular embodiments use a process that can invalidate an elected leader using an invalidated leader value. The availability and use of the invalidated leader value can avoid the requirement of performing a new election round to elect a new leader. When one node of the group detects that there may be a fault with respect to the leader of the system, the node can start the process to establish a new leader autonomously. First, the node can invalidate the leader. Then, the node attempts to propose a new leader. If a quorum is received, then the proposed leader may be elected as the new leader. By invalidating the old leader, the node can ensure that the old leader cannot be elected the new leader once the quorum is received for the new leader.
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