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Displaying posts with tag: skysql (reset)
Spil Games hackday: research MaxScale

Spil Games hackday At Spil Games we organise a monthly hackday (actually the last two Thursday/Friday of the month) where several teams try to hack something in limited amount of time. The only rules for the hackday are: make something cool, keep it simple, document it, learn something and have fun. In general it means time is […]

The post Spil Games hackday: research MaxScale appeared first on Spil Games Engineering.

Moving On

I have a difficult task of making this post interesting, helpful and personal at the same time. I think the main goal is to balance these aspects, and I really appreciate your comments and suggestions that I will add here.

Automation & Management of MariaDB Galera Clusters: New European Webinars with SkySQL - The MariaDB Company

August 21, 2014 By Severalnines

MariaDB Galera Cluster involves more effort and resource to administer than standalone MariaDB systems. If you would like to learn how to better manage your MariaDB cluster, then this webinar series is for you. 


We will give you practical advice on how to introduce clusters into your MariaDB / MySQL  environment, automate deployment and make it easier for operational staff to manage and monitor the cluster using ClusterControl.


Language, Date & Time: 


English - Tuesday, September 30th @ 11am CEST: …

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MySQL Slave Scaling and more

Jean-François talks about binlog servers. Take a look here:

MariaDB 10.0.12 Overview and Highlights

MariaDB 10.0.12 was recently released, and is available for download here:

This is the third GA release of MariaDB 10.0, and 13th overall release of MariaDB 10.0.

This is primarily a bug-fix release.

Here are the main items of note:

  1. Updated Spider storage engine to version 3.2.4.
  2. Updated Connect engine.
  3. Updated pcre to version 8.35.
  4. Exists-to-In optimization is now enabled by default.
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MySQL 5.5.38 Overview and Highlights

MySQL 5.5.38 was recently released (it is the latest MySQL 5.5, is GA), and is available for download here:

This release, similar to the last 5.5 release, is mostly uneventful.

Out of the mere 13 bugs, most were benign, but I thought there were two worth mentioning (just because one is a slight performance improvement for InnoDB, and the other relates to slave consistency, so always important to see if it could affect you):

  1. InnoDB: For each insert, memset would be called three times to allocate memory for system fields. To reduce CPU usage, the three memset calls are now combined into a single call. (Bug #17858679, Bug #71014)
  2. Replication: When …
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MariaDB 5.5.38 Overview and Highlights

MariaDB 5.5.38 was recently released (it is the latest MariaDB 5.5), and is available for download here:

This is a maintenance release, and so there are not too many big changes of note, just a number of normal bug fixes. However, there are a few items worth mentioning:

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MySQL 5.6.19 Overview and Highlights

MySQL 5.6.19 was recently released (it is the latest MySQL 5.6, is GA), and is available for download here.

I should actually call this post “5.6.18 and 5.6.19 Overview and Highlights”.

The 5.6 “Release Notes” Index provides an entry/changelog for 5.6.18 and says it was released 2014-04-11. However, it’s not available in the community download archives. This isn’t mentioned in the 5.6.18 changelogs, but it is in the 5.6.19 changelogs, where it says:

“There is no MySQL …

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MariaDB is the default implementation of MySQL in Red Hat Enterprise Linux 7

It was announced that MariaDB is now the default implementation of MySQL in the newly released Red Hat Enterprise Linux 7.

News of the Red Hat Enterprise Linux 7 can be found here.

And mention of MariaDB replacing MySQL as the default implementation is referenced in their release notes here.

The full change log entry reads:

MariaDB 5.5

  • MariaDB is the default implementation of MySQL in Red Hat Enterprise Linux 7. MariaDB is a community-developed fork of the MySQL database project, and provides a replacement for MySQL. MariaDB preserves API and ABI compatibility with MySQL and adds …
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What exactly does log_warnings=2 log?

Have you ever wondered exactly does log_warnings=2 log? Well, I have, and finally decided to check the code. (The manual used to mention setting this to 2 for diagnosing some connection-related problems, but I didn’t run into that comment in my most recent search.)

Basically, in recent 5.6 source code, we find “log_warnings > 1″ in 7 files. In 5.5 source, it is only in 5 files. Here are the 7 files in 5.6: (line 460) (lines 4873, 10020, 11209) (line 912) (lines 1538, 1596, 1735, 2066) (lines 3585, 4684, 5405, 5436) (lines 9591, 9613, 11351) (line 791)

Long story short, the main (most common) ones are when a filesort fails ( or a failed login occurs ( Then there are some replication-specific instances where it logs extra info, such as master/slave/binlog info, “ignored” errors, and some summary …

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