[ English ] – texto en español abajo We’re pleased to announce the next Madrid MySQL Users Group meetup which will take place on the 15th of November at 19:00. Sign up details can be found here. There’ll also be a similar meetup in Amsterdam on the 12th November hosted by a colleague. Details here. … Continue reading 2018-11-15: Announcing: Scaling MySQL with TiDB, Vitess and MySQL Cluster at Madrid MySQL Users Group[Read more]
Mydbops team has presented at 15th edition Open source India Conference happened at Bangalore on 12-10-2018. Manosh malai ( Senior Devops/ DB Consultant ) and Kabilesh P R ( Co-Founder Mydbops ) has made presentation on “Evolution of DBA in the Cloud Era“. They have shared the value addition that DBA’s can bring into any organisation who have adopted to cloud ( DBaaS ). They have shared a case study of their consulting experience too.
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 replication engine supports data extract from MySQL, MySQL Variants such as RDS, Percona Server, MariaDB and Oracle and allows the data extracted to be applied on other data sources such as Vertica, Cassandra, Redshift etc.
Tungsten Replicator includes support for parallel replication, and advanced topologies such as fan-in and multi-master, and can be used efficiently in cross-site deployments.
1.1.0. Architecture :
There are three major …[Read more]
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 in production for our client quite a sometime, we have also shared some of our encounters/experience and use cases in the below blogs.[Read more]
Please join Percona’s Architect, Tibi Köröcz as he presents Utilizing ProxySQL for Connection Pooling in PHP on Tuesday August 14, 2018, at 8:00 am PDT (UTC-7) / 11:00 am EDT (UTC-4).
ProxySQL is a very powerful tool, with extended capabilities. This presentation will demonstrate how to use ProxySQL to gain functionality (seamless database backend switch) and correct problems (applications missing connection pooling).
The presentation will be a real-life study on how we use ProxySQL
for connection pooling, database failover and load balancing the
communication between our (third party) PHP-application and our
Also, we will …
In MariaDB 10.2.12, these two don’t yet work together. GTID = Global Transaction ID. In the master-slave asynchronous replication realm, this means that you can reconnect a slave to another server (change its master) and it’ll happily continue replicating from the correct point. No more fussing with filenames and offsets (which of course will both differ on different machines).
So in concept the GTIID is “globally” unique – that means it’s consistent across an entire infra: a binlogged write transaction will have the same GTID no matter on which machine you look at it.
- OK: if you are transitioning from async replication to Galera cluster, and have a cluster as slave of the old infra, then GTID will work fine.
- PROBLEM: if you want to run an async slave in a Galera cluster, GTID will currently not work. At least not reliably.
The overview issue is …[Read more]
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 are not isolated then one transaction could modify the data that another transaction is reading hence creating data inconsistency. Isolation levels determine how isolated the transactions are from each other.
MySQL supports all four the isolation levels that SQL-Standard defines.The four isolation levels are
- READ UNCOMMITTED
- READ COMMITTED
- REPEATABLE READ
The Isolation level’s can be set globally or session based on our requirements.
Including setting up Percona XtraDB Cluster with ProxySQL and PMM
Please join Percona’s Architect, Tibi Köröcz as he presents Percona XtraDB Cluster 5.7 Tutorial Part 2 on Wednesday, June 20th, 2018, at 7:00 am PDT (UTC-7) / 10:00 am EDT (UTC-4).
Never used Percona XtraDB Cluster before? This is the webinar for you! In this 45-minute webinar, we will introduce you to a fully functional Percona XtraDB Cluster.
This webinar will show you how to install Percona XtraDB Cluster with ProxySQL, and …[Read more]
Please join Percona’s CEO, Peter Zaitsev as he presents MySQL: Scaling and High Availability – Production Experience Over the Last Decade(s) on Tuesday, June 19th, 2018 at 7:00 AM PDT (UTC-7) / 10:00 AM EDT (UTC-4).
Percona is known as the MySQL performance experts. With over 4,000 customers, we’ve studied, mastered and executed many different ways of scaling applications. Percona can help ensure your application is highly available. Come learn from our playbook, and leave this …[Read more]
This is our fourth blog in the ProxySQL Series
- MySQL Replication Read-write Split up
- Seamless Replication Switchover Using MHA
- Mirroring MySQL Queries
This blog focuses on how to quickly find and address badly written queries using ProxySQL without any downtime and change in application code.
When we get an incident about the high usage on a production master, then mostly it is because of unexpected spike in Traffic (QPS) or slow queries.
Below was the status when we were doing the …[Read more]