Upgrading Roundcube on Ubuntu 18.04 and Ubuntu 20.04
What a mess… After postponing this for many months because I knew what awaited me, I double-upgraded an Ubuntu 18.04 server today, and aside from MySQL breaking in some spectacular ways (corrupt redo...
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Taking control of the wpautop filter
WordPress does automatic paragraph formatting using the wpautop filter, some PHP code originally developed by Matt Mullenweg. For most of the time that this blog has existed, I’ve disabled the wpautop...
View ArticleWriting a Magento 2 module
[This post is a work in progress.] Between the more […] Magento 2 MVC C = Controller: URL routing V = Block/Template/Layout M = Model
View ArticleG.B.D. Calamari Joomla and phpBB upgrade
As the chairman of G.B.D. Calamari, a Dutch student diving association, it falls to me to upgrade an aging Joomla configuration that is a relict of the last time that the board was chaired by somebody...
View ArticleDecreasing shutdown time of MySQL with large transaction log file
If you need/have a large transaction log file, a shut down can take a while. This post lists how you can force a flush before you do so, decreasing shut down time. In short: mysql> set global...
View ArticleDumping MySQL users and grants
MySQL stores its users and grants in a very annoying, non-clonable format. I found this post, describing how you can extra them. This bash function generates grants: mygrants() { mysql -B -N $@ -e...
View ArticleTrying to reduce MySQL InnoDB disk usage after major reduction of data
So, two days ago, I tried to shrink my MediaWiki database and it almost worked, except the MySQL process wouldn’t shrink along with it. Of course I tried all the obvious things such as dropping the...
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Shrinking/compressing a MediaWiki database
As of late, I haven’t had a lot of time to chase after spammers, so – despite of anti-spam captchas and everything – a couple of my wikis have been overgrowing with spam. One after the other I’ve been...
View ArticleConverting all tables in MySQL DB to InnoDB
#!/bin/bash exit 1 dbname="eorder" echo 'SHOW TABLES;' | mysql $dbname | awk '!/^Tables_in_/ {print "ALTER TABLE `"$0"` ENGINE = InnoDB;"}' | column -t echo 'SHOW TABLES;' | mysql $dbname | awk...
View ArticleListing MySQL table sizes
This query lists the sizes of all tables in MySQL: SELECT TABLE_SCHEMA, TABLE_NAME, CONCAT(ROUND(data_length / ( 1024 * 1024 ), 2), 'MB') DATA, CONCAT(ROUND(data_free / ( 1024 * 1024 ), 2), 'MB')FREE...
View ArticleConverting a MySQL database from latin1 to utf8
mysqldump dbname > dbname_bak_before_messing_with_it.sql mysqldump --default-character-set=latin1 --skip-set-charset dbname > dump.sql sed -r 's/latin1/utf8/g' dump.sql > dump_utf.sql mysql...
View ArticleGetting a better MySQL prompt
When you want to see which user you are and which database you’re working with, put this in .my.cnf: prompt=(\\u@\\h) [\\d]>\\_ Too bad mysql doesn’t support color. You can make it work with rlwrap,...
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Taking control of the wpautop filter
WordPress does automatic paragraph formatting using the wpautop filter, some PHP code originally developed by Matt Mullenweg. For most of the time that this blog has existed, I’ve disabled the wpautop...
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Ytec, WordPress and Aihato.nl
On Oktober, the 25th, in what will be known to future generations as a historical move, Wiebe changed the A record of www.aihato.nl to point to the new production site running at Ytec. The new site, a...
View ArticleMaking mysqldump work on a zimbra installation
Zimbra installs its own mysql and there is no workable mysqldump command. There is a mysql command wrapper script (/opt/zimbra/bin/mysql) that loads an environment to set password and such, but there...
View ArticleShow privileges for mysql users
(source) To show one users privilges in mysql: SHOW GRANTS FOR 'luser'@'localhost'; To list current users grants: SHOW GRANTS; Show all users: select user,password,host from mysql.user;
View Article![Cloonee, Yandel & ATLAC – Movimiento – Single [iTunes Plus M4A]](http://i.imgur.com/Q8tO40p.jpeg)
