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Displaying posts with tag: 5.6 GA (reset)
Fun with Bugs #38 - Regression Bugs in MySQL 5.6

I often have to reply to questions related to upgrade from, say, MySQL 5.5.x to latest MySQL (or Percona) Server 5.6.x (5.6.27 for MySQL and 5.6.26 for Percona at the moment). One of them is sometimes about "any known bugs" that may affect a user after upgrade.

One may assume that now, 2 years and 8 months after the first GA release of MySQL 5.6.10, there should be very few bugs (we call them regression bugs) of a kind that is interesting for the user planning upgrade from 5.5.x. I checked yesterday and found out it's not the case actually. It took me half an hour to end up with the list of more than 20 regression bugs that are still "Verified", so may affect even the latest recent release, 5.6.27. I had not checked them one by one on 5.6.27 yet (it will take more than half an hour probably), but still would like to …

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It's all about bugs fixed: MySQL 5.6.14

Most of MySQL gurus and famous users are probably in San Francisco now, getting ready for fun at MySQL Connect. Part of that fun should come from the announcement of great new MySQL 5.6.14 release (that somewhat silently happened yesterday).

I am sitting at home though and I've seen at best 3 sunny days in September. The rest of the time it rains, so hardly I can do anything more funny and useful than review of MySQL bug reports even during my weekend. Let me try to tell you what MySQL 5.6.14 is really about and what you should expect from it based on the list of bugs fixed. Please, do not blame me if my summary would be different from the upcoming keynotes at MySQL Connect. It rains here...


I'll use good old approach of checking my older posts about bugs in MySQL 5.6.13 and comparing it to the …

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More details on "MySQL 5.6 Experiences" coming soon...

I've already shared my presentation few hours before I made it during PLMCE 2013, back on April 24. The idea behind the presentation was simple (and I think that any MySQL user who is planning to upgrade to MySQL 5.6.x in production should do something like this): let's read the "What Is New in MySQL 5.6" manual page and check new features one by one.

This is what I am going to do with the content of that manual page in the upcoming blog posts (and what was done as background work for the presentation):

  • Remove extra details and add references to each major feature
  • For every feature description add extra references (articles …
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Fun with Bugs, Issue #5, February 2013

This week we had finally got MySQL 5.6.10 released as GA. It's a big deal, first MySQL GA release with the entire development process happened in Oracle from day one, quantum leap (as every second blog post says these days) in many areas, from scalability to replication performance, with InnoDB fulltext indexes and PERFORMANCE_SCHEMA improvements in between... So, this week it makes sense to concentrate on 5.6 GA and nothing else.

As one of my former colleagues noted, no GA is bug free. Surely there are known and verified bugs in 5.6.10, but not that many. Let me just give you a list to check, in case you plan to upgrade/switch to 5.6 in production:

Bug #68300 (crash when password expire is set for a user, in a corner case)
Bug #68299 (EXPLAIN output for …

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Fun with Bugs, Issue #3, January 2013

This week in my posts on Facebook I paid attention mostly to bugs in MySQL 5.6.x, as I really expected to see 5.6 GA announcement soon. Maybe some of the bugs were the reason to postpone release a bit. Anyway, let's start with serious bug reports and some trends I've noted.

I've noted that some of "Verified" bug reports somehow silently miss comments about their status in MySQL 5.6. Check Bug #68137, for example. It is repeatable on 5.5.31 (yet to be released, but it means 5.5.30 is cloned off and will be released soon) and 5.7.1. But 5.6.x is not mentioned anywhere. Does it mean 5.6.x is not affected? Surely, no. I hope it does NOT mean any attempt by Oracle to pretend that 5.6 is bugs free. Looks like Sveta had just forgotten to check or report result on this version when following her …

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Showing entries 1 to 5