MySQL User connections
So I found myself explaining the differences with MySQL users and how they authenticate. First of all this information is not new but can be found...
View ArticleRotating MySQL Slow Logs
While working with different clients I happen to run across very large slow log files from time to time. While several opinions on how they should be rotated exist. Many of these opinions use log...
View Articlesystemctl and MySQL
So some users complete a yum install of MySQL and expect to be able to use the following command to start the MySQL server:: /etc/init.d/mysql start only to get "No such file or directory"So this is...
View ArticleRecover Lost MySQL data with mysqlbinlog point-in-time-recovery example
Backup ... backup... Backup... but of course.. you also need to monitor and test those backups often otherwise they could be worthless. Having your MySQL binlogs enabled can certainly help you in...
View ArticleA MySQL PARTITION and SUBPARTITION Example
So this is just a simple example of how to set up a PARTITION and a SUBPARTITION in MySQL. The concept here is that you have data in a table with numerous values in a datetime field. You might have...
View ArticleFind/parse a string from within a string
So I noticed a few different questions and posts about parsing a string out of another string recently. While some solutions included creating new functions and etc it can also be done within a single...
View ArticleFibonacci Sequence Procedure
Well it has been awhile since I posted, sorry about that. Today I was watching reruns of the TV show Fringe and when Walter referenced the Fibonacci Sequence I got side tracked with MySQL options for...
View ArticleQuick Password generation with MySQL
Here is a quick and simple way to generate a password your application using MySQL.This query will create a upper and lower case randomly generated password in length and values.SELECT...
View ArticleMath with MySQL
I thought I posted this long ago... oh well....We all know that math is the fundamental aspect of all life and the common language used around the world if not beyond. MySQL, like all databases, can...
View ArticleMySQL InnoDB Tablespace Encryption
MySQL Tablespace Encryption is relatively simple to set up. You have to be using MySQL 5.7, innodb_file_per_tablehttps://dev.mysql.com/doc/refman/5.7/en/innodb-tablespace-encryption.html The MySQL...
View ArticleMySQL Cheat Sheet
So first I have posted in sometime as felt I should be. I have been very busy still working with MySQL and all related forks and failed to put out blogs as I felt I should. So I will work on that. Now...
View ArticleMySQL 8.0.4rc
MySQL 8.0.4rc was just released as "Pre-General Availability Draft: 2018-03-19".https://dev.mysql.com/doc/refman/8.0/en/mysql-nutshell.htmlhttps://dev.mysql.com/doc/relnotes/mysql/8.0/en/I decided to...
View ArticleProxy MySQL :: HAproxy || ProxySQL & KeepAlived
So when it comes to routing your MySQL traffic several options exist.HAproxyMariaDB MaxScaleNGINXMySQL RouterProxySQLYou can even still get MySQL Proxy if you wanted it but it is EOF. Now I have seen...
View ArticleEvery MySQL should have these variables set ...
So over the years, we all learn more and more about what we like and use often in MySQL. Currently, I step in and out of a robust about of different systems. I love it being able to see how different...
View ArticleSometimes the slow database.. is not the database...
So I was recently asked to look into why the updated MySQL 5,.6 was slower than the older 5.5 So I started by poking around looking over the standard variables and caches and etc.The test case was a...
View ArticleSimple KeepaliveD set up
So keepalived has been around for quite a while now .... however it is still a mystery to many.So this is a very simple example of how keepalived can work with MySQL. Hopefully, this can help those...
View ArticleSlack
Just a simple post here to give support to the slack community channels.If you have not joined some of these... this is a great way to communicate with the community.MySQL --...
View ArticleMax_connections 214 4.15.0-46-generic #49-Ubuntu
So the issue of max_connections dropping from the value set in your my.cnf file down to 214 has been around for a little while on Ubuntu.As an example, it was noted here back in...
View ArticleMySQL Group Replication
So MySQL's group replication came out with MySQL 5.7. Now that is has been out a little while people are starting to ask more about...
View ArticleMySQL Binlogs:: How to recover
So I realized I had not made a post about this after this situation that recently came up.Here is the scenario: A backup was taken at midnight, they used MySQL dumps per database. Then at ten am the...
View ArticleMySQL How do you restore tablespace
MySQL How do you restore tablespace?This is not new information but I have not covered it much so addressing it now for those that need it.If you lose your ibd files... you lose your data. So if you...
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MySQL & Dockers...a simple set up
MySQL & Dockers... are not new concepts, people have been moving to Dockers for some time now. For someone who is just moving to this for development, it can have a few hurdles.While MySQL works...
View ArticleMySQL mysql_config_editor & expect
This is just a note to help out anyone that might want to use the mysql_config_editor command in their automation tools. the mysql_config_editor does not take a password argument so automation tools...
View ArticleUsing your FRM file to get Schema and then import idb files..
This is a topic that overall you never should have to do... Why? Because you created backups right... You have tested and know the backups work so you can just restore those backups and get your lost...
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