Previously, we wrote about Setting Up a Geo-Distributed Database Cluster Using MySQL Replication. This time, it's about PostgreSQL. Setting up a geo-distributed cluster for PostgreSQL is not a new concept and the topology is quite...

There are different reasons for adding a load balancer between your application and your database. If you have high traffic (and you want to balance the traffic between different database nodes) or you want to...

MySQL slaves may become inconsistent. You can try to avoid it, but it’s really hard. Setting super_read_only and using row-based replication can help a lot, but no matter what you do, it is still possible...

Database security requires careful planning, but it is important to remember that security is not a state, it is a process. Once the database is in place, monitoring, alerting and reporting on changes are an...

A single point of failure (SPOF)  is a common reason why organizations are working towards distributing the presence of their database environments to another location geographically. It's part of the Disaster Recovery and Business Continuity...

If you have a PostgreSQL cluster up-and-running, and you need to handle data that changes with time (like metrics collected from a system) you should consider using a time-series database that is designed to store...

PostgreSQL Streaming Replication is a great way of scaling PostgreSQL clusters and doing it adds high availability to them. As with every replication, the idea is that the slave is a copy of the master...

Replication lag issues in PostgreSQL is not a widespread issue for most setups. Although, it can occur and when it does it can impact your production setups. PostgreSQL is designed to handle multiple threads, such...

One of the key factors of a performant MySQL database server is having good memory allocation and utilization, especially when running it in a production environment. But how can you determine if the MySQL utilization...

A master/slave replication cluster setup is a common use case in most organizations. Using MySQL Replication enables your data to be replicated across different environments and guarantees that the information gets copied. It is asynchronous...

Backups are a must in all Disaster Recovery Plan. It might not always be enough to guarantee an acceptable Recovery Point Objective, but is a good first approach. The problem is what happens if, in...

Security is one of the most important elements of the properly designed database environment. There are numerous attack vectors used with SQL injection being probably the most popular one. You can design layers of defence...