We had faced a weird error for one of our client under Emergency MySQL Support, it was a slave server. Client stated that whenever he tries to Start the replication it goes of loop of restarts. We had a sharing session with the client, At first we intended to rebuild the slave with a fresh … More InnoDB ‘Linux aio’ returned OS error 0. Cannot continue operation.
In this post, I ‘ m going to cover my recent encounter with MaxScale. We had to help one of our client to load balance and split read / writes on their 3 node Percona XtraDB Cluster (PXC). List of available options were HaProxy MaxScale ProxySQL Implementation of HaProxy is ruled out as It’s doesn’t … More Scale With MaxScale – Part 1
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 … More Estimating records in index range and CPU Spike (MariaDB)
TokuDB is a high compression Engine for MySQL. It uses Fractal tree pages and huge data pages to achieve the The Percona TokuBackup library intercepts system calls that write files and duplicates the writes on backup files. It does this while copying files to the backup directory. The TokuBackup library must be installed into the mysqld … More TokuDB hot Backup and Recovery.
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 … More Galera Cluster a Walk through ( Presentation)
Introduction: Password is be like the words, numbers and string of characters. On database and server side, the username and password were should needed for certain access. The password should be structured and security based. In this section we are going to take a elaborate view on validate_password plugin in MySQL. We have seen about … More Security: MySQL Password Validation Plugin
MySQL Enterprise Backup (MEB) is a high performance hot backup tool. It is a stable tool and evolved with changes in IT industry. The recent versions has support to direct cloud backup in S3. It is an enterprise backup tool from Oracle MySQL and integrated quite well with MEM ( MySQL Enterprise Monitor ). This … More MySQL Enterprise Backup ( MEB)
Introduction: Basically, Auditing is the process of monitoring and recording the activity happens inside the Server. MariaDB Audit Plugin is works with MariaDB, MySQL and Percona Servers. It is used to log the database Operations like, SQL Statements, User informations, Connections. The informations are stored in a user defined log file or in Syslog. Available audit … More Integrating MariaDB Audit plugin in MySQL 5.7
Presentation on MySQL Sys Schema in MySQL 5.7. Sys Schema views can help in better monitoring and understanding the MySQL resource consumption at various levels.
The TokuDB engine must be separately downloaded and then enabled as a plug-in component in previous versions. This package can be installed alongside with standard Percona Server 5.6 releases starting with 5.6.19-67.0 and does not require any specially adapted version of Percona Server. After acquisition Percona has integrated the TokuDB with their standard Percona Server distribution. … More Enabling TokuDB in Percona server 5.7