Galera uses a preallocated file with a specific size called gcache, used to store the writesets in circular buffer style. By default, its size is 128MB. In this post, we are going to explore how to leverage...

Database vendors regularly issue critical patch updates to address software bugs or known vulnerabilities, but for a variety of reasons, organizations are often unable to install them in a timely manner, if at all. Evidence...

BitTorrent Sync is a simple replication application providing encrypted bidirectional file transfers that can run behind NAT and is specifically designed to handle large files. By leveraging the simplicity of Bittorrent Sync, we can transfer...

This is a guest post from Igor Shevtsov, a MySQL DBA based in Twickenham, UK. Igor has had the opportunity to deploy and manage different types of high availability MySQL solutions, and we invited him...

OpenStack uses a database to store data for all OpenStack services such as compute nodes available, running instances, state and so on. The DB takes part in every user request, from listing all instances to...

In this post we will compare performance of MongoDB and TokuMX, a MongoDB performance engine from Tokutek. We will conduct three simple experiments that (almost) anyone without any programming skills can try and reproduce. In...