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Mechanisms that coordinate transaction commits by requiring acknowledgments from replicas.
Distinct from Leaderless Replication: Focuses on the commit flow coordination for synchronous replication rather than leaderless architectures
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Patroni is a high availability manager and cluster orchestrator for PostgreSQL. It functions as an automatic failover controller and replication manager that ensures continuous database availability by automating leader election and promoting standby nodes during failures. The system maintains a consistent cluster state by acting as a distributed consensus coordinator. It synchronizes configuration and manages leader elections through integration with distributed configuration stores such as etcd, ZooKeeper, or Consul. Its broader capabilities include managing both synchronous and asynchrono
Coordinates synchronous replication by requiring standby acknowledgments before confirming transaction success to clients.