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The Percona Database Performance Blog

Technical guides, deep dives, and perspectives across MySQL, PostgreSQL, MongoDB, Valkey, Redis, and more.

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September 2, 2026

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Zelmar Michelini

Mongorewind: Rewind Your MongoDB Test Data Without Restoring a Backup

Mongorewind: Rewind Your MongoDB Test Data Without Restoring a Backup One day, my friend Martín told me about a problem he and his team were dealing w...

OpenID Connect Authentication for MySQL, Now Fully Open Source

August 31, 2026

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Ivan Groenewold

Rotating Expiring X.509 Certificates in Percona Server for MongoDB with Minimal Service Interruption

Benchmarking vector indexes

August 27, 2026

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Bogdan Degtyariov

Performance Progression of Percona Server for MySQL 8.4

August 26, 2026

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Robert Bernier

Navigating the Walled Gardens of PostgreSQL: Hidden Risks of Postgres Vendor Lock-in

Replication Lag on AWS FSx: The Hidden EC2 Single-Flow Bandwidth Limit

Software Bill of Materials in Percona Server for MongoDB

Security Advisory: Privileged ClickHouse access through the Grafana data source in PMM

Stop guessing at gcache: inspect Galera/PXC write sets with gcache-inspector

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