Tag: MySQL

Overview: It is a general rule of thumb, that the more indexes you have on a table, the slower the INSERTs, UPDATEs, and DELETEs operations become. Indexes in MySQL—or for that matter, any database—are never static. Each time you modify…

Overview of ISSUE: This post is regarding a scenario where the pt-osc command breaks replication and how to prevent that. If you are running a pt-osc command on a primary instance and it has replicas under it with existing replication…

Intro When we want to perform a heavy ALTER TABLE against  a several gigabytes table the options are quite a few but the one I tend to use the most is pt-online-schema-change (pt-osc). This tool is very mature and solid…

Whether you’re using a PostgreSQL, MySQL or SQL Server relational database, a migration to Google Cloud SQL can take it up a notch—automating management tasks, ensuring business continuity and staying up-to-date with security and compliance requirements. And, with a solution…

Here we go again Hello, and welcome to this second part of my “Replicating MySQL to Snowflake” series. If you landed here from a web search and missed part one, you can take a look here: part one. What’s up?…

What, Snowflake? Yes, Snowflake. While my core skills are based on the Oracle database, lately I’ve been working more on platforms like BigQuery and Snowflake—”lately” being the last one-and-a-half years or so. While this is my very first post related…

Oracle MySQL Community Edition comes with a native, virtually synchronous, clustering solution called InnoDB Cluster. This clustering solution uses a technology under the hood called Group Replication. This technology is very similar to Galera Cluster, although where Galera relies on…

We were recently paged by a client because one node of their Orchestrator setup had crashed. The Orchestrator cluster was set up using the Orchestrator/raft consensus cluster and using a SQLite backend. When looking in the log files this is…

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we update and bring forward a popular post from the past. Today’s post was originally published on November 26, 2019. It’s not uncommon these days for…

Here at Pythian we get a lot of exposure to new technologies and implementation strategies via the work we do internally and for our clients. The most noteworthy technology stack that I’ve seen get a lot of traction in the…