Blogs
MongoDB Resharding : A Production Perspective
Choosing the right shard key is one of the most important architectural decisions when designing a MongoDB sharded cluster. A well-designed shard key distributes data and workload evenly across shards, allowing the cluster to scale efficiently as data volumes and...
MongoDB Performance Optimization: The Metrics Every DBA Should Know
Why MongoDB Performance Troubleshooting Is Challenging MongoDB is widely used for modern applications because it provides flexibility, scalability, and high availability. However, as application traffic grows and data volumes increase, maintaining consistent database...
Still Running Amazon RDS MySQL 8.0? Plan Your Upgrade Now
Introduction If your Amazon RDS MySQL instances are still running MySQL 8.0, now is the time to start planning your upgrade strategy.With Amazon RDS MySQL 8.0 reaching End of Standard Support, organizations need to decide whether to move to MySQL 8.4 LTS or continue...
MongoDB Shard Key Selection: A Guide to Better Performance
"We already added two more shards, but why is one shard still running at 90% CPU?" This was one of the first questions a customer asked us during a production performance review. At first glance, the architecture looked perfectly fine. The MongoDB cluster had been...
Everything You Need to Know About ClickHouse in PMM
Introduction When administrators install Percona Monitoring and Management (PMM), they usually focus on the dashboards. Beautiful Grafana panels. Historical metrics. Query Analytics (QAN). Performance insights. However, behind those dashboards is a database that...
Inside MySQL InnoDB: The Complete Journey of One Transaction
Table of Contents Part 1 – Setting the Foundation Introduction Understanding the InnoDB Architecture Meet Our Transaction Part 2 – The Write Path The Buffer Pool – Where Every Transaction Begins Redo Log – Protecting Transactions Before the Data Reaches Disk Undo Log...
Why PostgreSQL WAL Is the Most Important Feature Every DBA Should Understand
Introduction Every PostgreSQL DBA spends time monitoring performance, managing backups, tuning queries, and troubleshooting replication. However, behind all these operations lies a single mechanism that makes PostgreSQL one of the most reliable database systems in the...
Your MariaDB Server Looks Secure… But Is It Really?
If there is one thing years of production database support have taught us, it is this: Most security incidents don't happen because MariaDB lacks security features. They happen because nobody verifies whether those features are still configured correctly after the...
Managing Storage Growth in MongoDB: Fragmentation and Compaction
If you've ever deleted millions of documents from MongoDB and then checked your disk usage, you've probably asked yourself: "Why hasn't the database size decreased?" This is one of the most common questions among developers, DBAs, and operations teams. At first...
The Ultimate Guide to Predictive Monitoring with Nagios Core
Introduction Modern IT environments are more complex than ever. Organizations rely on servers, databases, applications, and cloud services that must remain available around the clock. Traditional monitoring tools can detect failures and generate alerts, but they often...
Let Us Help You Grow