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.
As Mydbops we have consulted many large scale MySQL deployments. This presentation is about one of our customer who is one of the largest retailer in North America. This is about their data migration to InnoDB Cluster ( MySQL ) from an enterprise database.
I was involved in one of the development support for MySQL. Here is an interesting case The application needs a Sequence generator as it was not present inbuilt with MySQL ( MariaDB will have it in 10.3 ) they have made sequence generator function with 'select for update' statement. But it tends to cause more locking … Continue reading Investigating a MySQL dead lock
Introduction : In MySQL the replication is logical. And the DB changes were written to mysqlbinlog. This mysqlbinlog is pulled (IO Thread) and applied ( SQL Thread) by the slave servers. Binlog is the key for MySQL Replication. Binary logging format is of three types. Statement ROW Mixed ROW based replication benefits the smaller writes … Continue reading Read MySQL Binlogs better with rows query log events
Recently we got paged by CPU spikes on one of our clients slave MySQL ( MariaDB ) server under MyDBOPS Remote DBA Team Support. Our MySQL Engineers started analysing the root cause of the issues and resolved it. This blog provides an overview of the troubleshooting and fix proposed. System Summary : Database server : 10.1.10-MariaDB-log … Continue reading Estimating records in index range and CPU Spike (MariaDB)
This presentation is about Galera. Galera is a synchronous high availability clustering solution designed for MySQL. At MyDBOPS we have customers on Galera. They depend on the Galera for their business high availability and read scaling. Handling and troubleshooting a Galera cluster needs more expertise. This presentation is a walk through on Galera Cluster with … Continue reading Galera Cluster a Walk through ( Presentation)
Open Source India days ( 2015 ) was held at NIMHANS Convention Centre in Bangalore. It was a two days event. Database day track was held at the second day. MyDBOPS team has participated with enthusiasm. Oracle Linux and MySQL have their Stalls at the Venue ( Oracle and MySQL were Gold partners of this event ).There … Continue reading MySQL in OSI days 2015