replication Archive

Howto: Memcached replication = Repcached

Intro Implementation of replicated memcached is fairly easy. Even though memcache isn’t suppose to be used in this manner and should be used as violatile service, there is alternative, which can replicate data from one memcached to another. It’s called Repcached. As long as one repcached server is up, you will keep all your data

Converting your InnoDB MySQL server to TokuDB (how we did it)

What is TokuDB? TokuDB is a storage engine for MySQL and MariaDB that dramatically improves the performance of large databases (typically 50 GBs or larger). By replacing 40-year-old B-tree technology with patented Fractal Tree® technology, TokuDB speeds indexing by 10x or more, and reducing the size of the database by upt o 90%. Because of

Migrating MongoDB databases

MongoDB (from “humongous”) is a scalable, high-performance, open source NoSQL database. Written in C++. A while ago I had to move some servers with MongoDB replica set from our current colocation to new provider Hetzner. There are few different ways to get this done: Get one member of replica set removed, create new MongoDB server