Ardent Performance Computing
replication
PGConf.dev 2026 Trip Summary
I’m back home from Vancouver. What a great week – in every way. I’ll try to share a few highlights here. Updated Happiness Hints First and foremost: after many years, the Happiness Hints have received a major update! Before the conference, I updated the hints based on all the feedback I’ve collected over the past … Continue reading
Testing CloudNativePG Preferred Data Durability
This is the third post about running Jepsen against CloudNativePG. Earlier posts: Run Jepsen against CloudNativePG to see sync replication prevent data loss Losing Data is Harder Than I Expected First: shout out to whoever first came up with Oracle Data Guard Protection Modes. Designing it to be explained as a choice between performance, availability and … Continue reading
Losing Data is Harder Than I Expected
This is a follow‑up to the last article: Run Jepsen against CloudNativePG to see sync replication prevent data loss. In that post, we set up a Jepsen lab to make data loss visible when synchronous replication was disabled — and to show that enabling synchronous replication prevents it under crash‑induced failovers. Since then, I’ve been … Continue reading
Run Jepsen against CloudNativePG to see sync replication prevent data loss
Are you in the Pacific Northwest? This Thursday Sep 4 at 6pm we have special guest Nikolay Samokhvalov visiting Seattle and speaking at the Seattle Postgres User Group! Nik is the founder of PostgresAI and co-host of the long-running weekly podcast postgres.fm – we are very lucky to have him as a guest and I … Continue reading
PostgreSQL Logical Replicas and Snapshots: Proceed Carefully
Update 2024-Jan-24: this post has been linked from a few places after I wrote it in 2021. Just wanted to mention that there’s been ongoing discussion about logical replication and PostgreSQL. Instacart also has a newer blog post out about zero-downtime cutovers and it sounds like they’ve built some cool tooling. I think that two … Continue reading
This Week in PostgreSQL – May 31
Since last October I’ve been periodically writing up summaries of interesting content I see on the internet related to PostgreSQL (generally blog posts). My original motivation was just to learn more about PostgreSQL – but I’ve started sharing them with a few colleagues and received positive feedback. Thought I’d try posting one of these digests … Continue reading
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contact: schneider @ ardentperf.com
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