As mentioned in a previous post, I gave a talk at Percona Live Europe 2018 about system-versioned tables. This is a new MariaDB 10.3 feature, which consists of preserving old versions of a table rows. Each version has two timestamps that indicate the start (INSERT,UPDATE) of the validity of that version, and its end (DELETE, […]
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Ever wondered how hosting companies manage their MySQL database architecture? At Hostinger, we have various MySQL setups starting from the standalone replica-less instances to Percona XtraDB Cluster (later just PXC), ProxySQL routing-based and even absolutely custom and unique solutions which I’m going to describe in this blog post. We do not have elephant-sized databases for internal services like API, billing, and […]
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We’ll look into how Clickhouse allows us to ingest a large amount of data and run complex analytical interactive queries at MessageBird,. We also present the business needs that brought ClickHouse to our attention and detail the journey to its deployment. We cover the problems we faced, and how we dealt with them. We talk about […]
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What excites me is the possibility that this tool is giving to other people. Also, the challenges I’ve faced and the new ideas for the future releases are always source of interest that keep me focused on the project. So I’m looking forward to sharing this with the conference delegates. pg_chameleon can achieve two tasks […]
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One of the most common questions about privileges in MySQL and MariaDB is how would a user revoke access to a particular table, in a large database with hundreds or thousands of tables, while keeping the rest available. Currently, there is no easy solution. Just grant access to everything else, individually. Not only does this […]
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My talk is titled Need for speed: Boosting Apache Cassandra’s performance using Netty. Over the years that I have worked in the software industry, making code run fast has fascinated me. So, naturally when I first started contributing to Apache Cassandra, I started looking opportunities to improve its performance. My talk takes us through some […]
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