Category: MySQL

This post explains on the usage of mysql_repair_threads for repairing myisam table & the processlist status Repair with N threads

This blog post explores the syncing options for an inconsistent MySQL slave of Galera cluster node using pt-table-sync

This is a quick setup guide of 10-steps to install and configure (multiple) MySQL instance on 3307 port, and make it slave from MySQL running on port 3306.

This post discuss the pt-table-checksum & error “Waiting to check replicas for differences: 0% 00:00 remain” with a use-case and solution.

MySQL ERROR 1018 (HY000): Can’t read dir of ‘./sakila/’ (errno: 13 – Permission denied) caused due to moving database to a different partition and using softlink on CentOS and it’s fix for SELinux.

It’s important to monitor the (database) backups after you set-it-up. In this post we will answer a few how to monitor MySQL Database backups solutions – monitoring methods. We should see suggestions for: Monitoring Holland MySQL Backup Monitoring mysqldump backups Monitoring Xtrabackup using log Monitoring Backups using Nagios Usually we can have our backup script […]

Recently a friend asked about Installing Percona Monitoring Tools for Nagios as he was facing a few issues. I managed to set-it-up on my ubuntu VM. Sharing the the work-log of Nagios and Percona Monitoring Plugins setup steps here for some-one who’s looking for the same! Install Nagios on Ubuntu – steps: (skip to Percona […]

UMASK and UMASK_DIR are amongst few MySQL Environment variables which defines directory and file creation modes (file permissions). In this post we will understand using UMASK & UMASK_DIR for changing the database directory and file permissions from it’s default to what we need.

Setting up a database backup is a primary task for database administrators and we see perl and shell scripts wrapped around few of the backup-tools in practice. With right tools things can look easy and today we shall look into one of that! MySQL Database backup can be done with mysqldump, mysqlhotbackup, xtrabackup, lvm / […]

This post will answer how to extract database, tables etc from mysqldumpsplitter utility.