Gunnar Morling • 8/26/2024

Leader Election With S3 Conditional Writes

This technical article details a method for implementing leader election in distributed systems using Amazon S3's newly announced conditional writes (If-None-Match header). It describes an algorithm where nodes compete to create a lock file in S3, with the winner becoming the leader, eliminating the need for a separate stateful service like ZooKeeper.

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#distributed systems #Leader Election #Distributed Locking