Alexander Kukushkin
Principal Software Engineer @ Microsoft
Alexander is better know in PostgreSQL community as "the Patroni guy". Patroni is a open source tool for implementing PostgreSQL clustering and high availability. Besides Patroni Alexander occasionally contributes to PostgreSQL and other open source projects and tools, usually Postgres related
POSETTE 2025 Talk
Myths and Truths about Synchronous Replication in PostgreSQL
Ever wondered if synchronous replication in PostgreSQL is too slow or if it always prevents data loss? Let's uncover the truth.
Synchronous replication in PostgreSQL has been available for almost 15 years and provides a foundation for high availability with zero RPO. However, even experienced DBAs and application developers often don’t understand all the quirks and trade-offs of using it.
This session will explore myths and truths surrounding synchronous replication. Using real-world examples and tests, we'll separate facts from fiction and give clear explanations on how synchronous replication works and how to use it effectively.
Past Talks
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Citus & Patroni: The Key to Scalable and Fault-Tolerant PostgreSQL (Citus Con 2023)
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