Friction

Pain point · Reliability & bugs · Blocks work

Frequent Postgres deadlocks after upgrading to Prefect 3.3.1

2 source threads · first seen 2025-04 · last seen 2026-01

Summary

A Helm-deployed Prefect server on EKS with RDS Postgres started hitting frequent deadlock errors in the message consume loop after the upgrade.

Affects
teams running Prefect server on EKS with RDS

Evidence

Excerpts are copied word for word from the source; follow the link to read it in full.

“when I run multiple background services version 3.6.9 I get this exact err”

“Lately, we've been experiencing frequent deadlocks after upgrading to Prefect 3.3.1”

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