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Displaying posts with tag: MySQL-Articles (reset)
ProxySQL Configuration File & Startup Process Explained

This post covers Proxysql start up process, Layers and configuration file.

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mysql database backup shell script with status email

This post is for the backup script for MySQL database on Linux with mail. It’s a linux shell script for taking logical backup using mysqldump and sending status email. The backup shell script works as follows: – The script takes backup using mysqldump and compresses it. – Upon success, it will attempt to ship the […]

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MySQL 8 Resource Group – introduction and dynamic allocation

This blog post gives an introduction to resource groups in MySQL 8 and dynamical allocation to threads, as well as a related bug report.

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Galera cluster to AWS Aurora migration & HA_ERR_FOUND_DUPP_KEY

In this post we will see a case study of a Galera Cluster migration to AWS Aurora and quick solution to the replication issue. A friend received an error in a Master-Master replication as follows: Could not execute Write_rows event on table _database._table; Duplicate entry '65eJ8RmzASppBuQD2Iz73AAy8gPKIEmP-2018-08-03 08:30:03' for key 'PRIMARY', Error_code: 1062; handler error HA_ERR_FOUND_DUPP_KEY; […]

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Restore A Table / Database From Full Backup – Yet Another Way

How to Restore A Table / Database From Full Backup using MySQL Grants & mysqldump.

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Export MySQL database table to CSV (delimited / Excel) file

Today lets talk a little about converting a MySQL table to CSV (Excel). My friend was looking to export MySQL to Excel, I saw couple of questions for export MySQL tables to CSV on forums. Since I saw the question often, I thought of writing out all the ways I can think of for exporting […]

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A tale of Corrupt InnoDB table, MySQL crash & recovery

I’m going to narrate you a story that happened around a crashing MyQL, Corrupted InnoDB table and finally the recovery by table restore. We will see how our database administrator detected the issue and what he did to resolve it. A day in MySQL Database Consultant’s day was taking its shape while a friend called […]

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Reset root password on Galera Cluster (Percona or MariaDB)

Reset MySQL root password for Galera Cluster ( Percona Xtradb / MariaDB )

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MySQL to Galera Cluster Migration, Deadlock, Back to basics

This post is a lab experiment learning from migration to the Percona Xtradb Cluster (Galera) and a very unexpected DEADLOCK scenario which took me back to basics. (root@localhost) [test]>insert into app values (1); ERROR 1213 (40001): Deadlock found when trying to get lock; try restarting transaction Little background: We needed to work on migrating the […]

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Restoring MySQL Database from xtrabackup – facepalm moments

Learning from facepalm moments of a MySQL database restore from Percona Xtrabackup.

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Showing entries 1 to 10 of 47
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