Got too many tombstones? This blog post will talk about how to deal with tombstones once you already have them. For more information about tombstones, check out this post: Examining the Lifecycle of Tombstones in Apache Cassandra. Verifying the presence…

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…

Editor’s Note: Because our bloggers have lots of useful tips, every now and then we bring forward a popular post from the past. We originally published today’s post on December 12, 2019. This is the first of a series of…

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 bring forward a popular post from the past. We originally published today’s post on December 16, 2019. This is the second of a series of…

Because incremental repairs can significantly reduce the time and IO cost of performing a repair, they can seem like a great idea. However practical implementation carries a few pitfalls which can cause severe damage to a production cluster, especially when…

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…

Here at Pythian we like to pay attention to what brings people to our site, and one of the main queries we’ve been seeing is “How can I allow a remote MySQL database connection?” Since our mission is to help…

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 May 23, 2018. In recent weeks I’ve been focusing…