…MySQL 5.5.23 or does it only work (or work better) with a Percona type version of MySQL…to “upgrade“? 3. Thirdly, thanks for your help and information. I just made the MySQL, apache2 and php updates available to…
Post: Upgrading MySQL
January 5, 2010 By 23 Comments
… in minor version – Upgrade of MySQL 5.0.30 to 5.0.32 is generally likely to expose less issues than 5.0.30 to 5.0.86. The largest amount of potential issues happens when you upgrade to different major version, especially if you skip over one. MySQL 5.0 to 5.1 upgrade is a lot safer upgrade path than 4.1 to 5.1…
Post: MySQL 4 to MySQL 5 Upgrade performance regressions
June 6, 2007 By 8 Comments
… regression cases when upgrading from MySQL 4.0 and 4.1 to MySQL 5.0. By serious I mean several times performance difference not just 5-10% you… easy to fix, But why is not it mentioned in MySQL 4.1 to 5.0 upgrade notes ? ? Furthermore if there were no good ideas how to make XA to work with group…
Post: Even minor upgrades are not always safe
September 4, 2006 By 5 Comments
… systems on MySQL 4.1 still as they will not benefit from MySQL 5.0 features anyway while I do not want to likely loose… MySQL 5.0 (You never know where to expect problems, ie some people reported JOIN breaking by upgrading to 5.0). Yes this stuff is in upgrade… case during 4.1 upgrade which is old stable version which is not as actively changed as 5.0 I upgraded MySQL 4.1.19 to 4.1…
Post: MySQL Server Upgrade
August 11, 2006 By 9 Comments
… of the bugs in MySQL 4.1.12 so there was a need for upgrade. Which Version did I upgrade to ? I Upgraded to MySQL 4.1.21. Why Did not I go with MySQL 5.0 ? There are three reasons. First there are number of changes in 5…
Post: The story of one MySQL Upgrade
October 8, 2010 By 8 Comments
… is hard to archive experience. Also problems you encounter during upgrade are very different depending on the upgrade version – upgrade from MySQL 4.1 to 5.0 had a lot of different issues than upgrade from MySQL 5.0 to 5…
Post: MySQL Installation and upgrade scripts.
May 21, 2007 By 3 Comments
…to get back you just swap binaries to the old version. I think it was great. In MySQL 4…MySQL install script but simply I find no mysql user after upgrade. MySQL Does not start after upgrade This is simply result of upgrade…
Post: Percona Server security fix releases
May 23, 2010 By 4 Comments
… still are many active MySQL 4.0 and MySQL 4.1 installations and we understand how hard it is upgrade 4.0/4.1 to 5.1. With published exploits these installation are now under serious risks. If you are interested in backporting patches to 4.0 / 4…
Post: More Gotchas with MySQL 5.0
July 27, 2007 By 23 Comments
Working on large upgrade of MySQL 4.1 running Innodb to MySQL 5.0 and doing oprofile analyzes we found very interesting issue … it is in MySQL 4.1 But why buf_get_latched_pages_number ? Because this function traverses whole buffer pool to compute number… much higher for MySQL 5.0 compared to MySQL 4.1 It was something like 2-3 for MySQL 4.1 vs 40-60 for MySQL 5.0 At…
Post: 7 Reasons why MySQL Quality will never be the same
December 10, 2008 By 15 Comments
…them use 5.1 vs row level replication or events. I think less than 5% are using both features. MySQL 4.1…as soon as it comes out. Many will only upgrade on the schedule or keep on the same release…general “quality” or “being free from bugs” to run MySQL in production. MySQL as it is now works for a …
