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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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April 16, 2026
Why A Goat?
New Brand. Same Independence. If you read today’s announcement, you know Percona has a lot to say about what’s broken in modern data infra...
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April 13, 2026
Pipelining and Transactions in Redis and Valkey
Pipelining and transactions are two important features in Redis and Valkey. Both involve sending multiple commands together. But they solve completely...
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April 13, 2026
MongoDB Query Plan Cache Explained: Performance, Pitfalls, and Re-Planning
When MongoDB receives a query, it performs the following steps: Evaluate the available indexes that could be used. Generate and test multiple executio...
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April 13, 2026
Auditing Login Attempts in MySQL and MariaDB
My colleague Miguel wrote about ways to audit login attempts in MySQL over 13 years ago, and this is still a relevant subject. I decided to refresh th...
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April 7, 2026
Percona ClusterSync for MongoDB 0.8.0: Up to 18x Faster Change Replication
Percona ClusterSync for MongoDB (PCSM) replicates data between MongoDB clusters — whether replica sets or sharded — handling both the initial bulk dat...
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April 1, 2026
Percona Operator for PostgreSQL 2.9.0: PostgreSQL 18 Default, PVC Snapshot Backups, LDAP Support, and More!
We are excited to announce Percona Operator for PostgreSQL 2.9.0! In this release, we bring significant improvements across database lifecycle managem...
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April 1, 2026
Benchmarking MyRocks vs. InnoDB in Memory-Constrained Environments
Benchmarking MyRocks vs. InnoDB in Memory-Constrained Environments It is a well-known fact in the database world that InnoDB is incredibly fast when t...
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March 27, 2026
PostgreSQL: Bye-Bye MD5 Authentication. What’s Next?
Introduction MD5 has been the most popular algorithm for encoding passwords in PostgreSQL and other database systems. It is simple to implement, cause...
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March 26, 2026
2026 – MySQL Ecosystem Performance Benchmark Report
By Percona Lab Results  ·  2026  ·  MySQL MariaDB Percona Benchmark Database MySQL Ecosystem Performance Benchmark Report 2026 Comparative Analysis of...
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March 18, 2026
Rate Limiting Strategies with Valkey/Redis
Rate limiting is one of those topics that looks simple until you’re actually doing it in production. Implement a counter with the INCR command a...
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