The Percona Database Performance Blog

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

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April 21, 2026

Impacts of updates in open-source databases

We recently looked at how various open-source database engines maintain their secondary indexes (in a previous analysis) and found significant differe...

Percona ClusterSync for MongoDB 0.8.0: Up to 18x Faster Change Replication

Far
Enough.

Said no pioneer ever.

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MySQL, PostgreSQL, InnoDB, MariaDB, MongoDB and Kubernetes are trademarks for their respective owners.

The Percona Database Performance Blog

Percona Operator for MySQL 1.1.0: PITR, Incremental Backups, and Compression

PostgreSQL Performance: Is Your Query Slow or Just Long-Running?

Deploying Cross-Site Replication in Percona Operator for MySQL (PXC)

MariaDB’s Snapshot Isolation: A Fix That Breaks More Than It Fixes

Why A Goat?

Pipelining and Transactions in Redis and Valkey

MongoDB Query Plan Cache Explained: Performance, Pitfalls, and Re-Planning

Auditing Login Attempts in MySQL and MariaDB

Percona ClusterSync for MongoDB 0.8.0: Up to 18x Faster Change Replication

Far Enough.

Far
Enough.