In our work, We used to get a lot of requirements for replicating data from one data source to another.Previously I wrote replication from MySQL to Red-shift. In this blog I am going to explain about replicating the data from MySQL to Oracle using Tungsten replicator. 1.0. Tungsten Replicator : It is an open source … Continue reading Replicating data from MySQL to Oracle
ProxySQL is the most preferred and is widely used for load-balancing MySQL workload, thanks to Rene Cannon & Team for the great tool, and kudos on the recent release of ProxySQL 1.4.10, with a lot of bug fixes. ProxySQL is simple in design, lightweight, highly efficient and feature rich, We have been working with ProxySQL … Continue reading ProxySQL Series : Percona Cluster/MariaDB Cluster (Galera) Read-write Split
MySQL replication has evolved a lot in 5.6 ,5.7 and 8.0. This presentation focus on the changes made in parallel replication. It covers MySQL 8.0. It was presented at Mydbops database meetup on 04-08-2016 in Bangalore.
The world of application and its related services are migrating more towards cloud, because of availability, Elasticity, Manageability etc. While moving the entire stack we need to be very cautious while migrating the database part. Migration of DB servers is not a simple lift and shift operation, Rather it would require a proper planning and … Continue reading Database Objects migration to RDS/ Aurora (AWS)
Introduction - MySQL 8.0.10 GPL came out with more changes and advanced features. We have changes on InnoDB physical file layout ( MySQL data directory ) too. This blog will provide the information about the MySQL 8 InnoDB physical files. MySQL system tables are completely InnoDB now ? Yes, Previously, we don't have too many … Continue reading InnoDB physical files on MySQL 8.0
MySQL 8.0 has come with a list of new features for DBA's ,we will discuss the new feature in MySQL 8.0 which supports Descending index.Prior to MySQL 8.0 (i.e MySQL 5.6 and 5.7) creating desc index syntax was supported but desc keyword was ignored, Now in MySQL 8.0 release descending index is extended are supported. … Continue reading Descending index in MySQL 8.0
This is the 5th blog in series of Maxscale blog, Below is the list of our previous blogs, Which provides deep insight for Maxscale and its use cases for different architectures. Scale with Maxscale part -1 (Intro & Galera Cluster) Scale with Maxscale part - 2 (Administration, Installation & operation) Scale with Maxscale part - … Continue reading Scale-with-Maxscale-part5 (Multi-Master)
In this blog, we will see the very basic thing "I" of "ACID" and an important property of Transaction ie., "ISOLATION" The isolation defines the way in which the MySQL server (InnoDB) separates each transaction from other concurrent running transaction in the server and also ensures that the transactions are processed in a reliable way. If transactions … Continue reading Back to basics: Isolation Levels In MySQL
The schema changes in production can cause lock at time and makes the slave to lag. It is more tedious and troublesome with PXC ( Galera ) cluster which can be made smoother with Percona online schema change. Image Courtesy : Photo by Andrew Ruiz on Unsplash
We have seen with most of the consulting projects where the customer might be having a dedicated DB (MySQL) server ,but running with a default configuration, without any optimisation for underlying hardware, "An idle hardware is similar to idle money will give you no returns". Well again if you are from a non-DBA background and you … Continue reading Ensure better defaults with InnoDB Dedicated server.