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Displaying posts with tag: mariadb (reset)
MariaDB 10.1.3 Overview and Highlights

MariaDB 10.1.3 was recently released, and is available for download here:

https://downloads.mariadb.org/mariadb/10.1.3/

This is the 1st beta, and 4th overall, release of MariaDB 10.1, so there are a lot of new changes, functionalities added, defaults changed, and many bugs fixed (I counted 420 – 117 in 10.1.2 & 637 in 10.1.1, fwiw).

Since it’s beta, I’ll only cover the major changes and additions, and omit covering general bug fixes (feel free to browse them all here).

To me, these are the highlights of the new features:

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MySQL 5.6.23 Overview and Highlights

MySQL 5.6.23 was recently released (it is the latest MySQL 5.6, is GA), and is available for download here.

For this release, there is 1 “Security Note”, 3 “Functionality Changed”, and 5 “Compilation Notes”, all benign, but let me address them:

  1. Security Note: The linked OpenSSL library for the MySQL Commercial Server has been updated from version 1.0.1j to version 1.0.1k. Issues fixed in the new version are described at http://www.openssl.org/news/vulnerabilities.html.
  2. Functionality Changed: Support for the SSL 2.0 and SSL 3.0 protocols has been disabled because they provide weak encryption. (Bug #19820550, Bug #19921150)
  3. Functionality Changed: yaSSL was upgraded to version …
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MariaDB 5.5.42 Overview and Highlights

MariaDB 5.5.42 was recently released (it is the latest MariaDB 5.5), and is available for download here:

https://downloads.mariadb.org/mariadb/5.5.42/

This is a maintenance release, and so there were not too many changes at all and only 3 changes (enhancements) I felt noteworthy:

  • The new version of the Audit Plugin is 1.2 is included with the following new features:
    • In the audit log passwords are now masked, i.e. the password characters are replaced with asterisks.
    • It’s now possible to filter logging to include only DDL (CREATE, ALTER, etc.) or DML (INSERT, UPDATE, etc.) statements.
    • For more information please refer to the About the MariaDB Audit Plugin page. The plugin is …
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MySQL 5.5.42 Overview and Highlights

MySQL 5.5.42 was recently released (it is the latest MySQL 5.5, is GA), and is available for download here:

http://dev.mysql.com/downloads/mysql/5.5.html

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

There were only 3 “Functionality Added or Changed” bugs this time, all related to SSL, and only 9 bugs overall fixed.

Out of the 9 bugs, there were 2 InnoDB bugs, and 1 replication bug, all of which seemed rather minor or obscure. Here are the ones worth noting:

  • Support for the SSL 2.0 and SSL 3.0 protocols has been disabled because they provide weak encryption. (Bug #19820550, Bug #19921150)
  • yaSSL was upgraded to version 2.3.7. (Bug #19695101, Bug #20201864)
  • The valid date range of the SSL certificates in mysql-test/std_data has been extended to the year 2029. (Bug …
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Using Master-Master for failover? :(

Using master-master for MySQL? To be frankly we need to get rid of that architecture. We are skipping the active-active setup and show why master-master even for failover reasons is the wrong decision.

So why does a DBA thinks master-master is good for in a failover scenario?

  • The recovered node does get his data automatically.
  • You need not to use a backup for recovery.

Please remember: MySQL Replication is async

Again: MySQL Replication is async. Even the so called semi-sync Replication!

So following is quite likely.

See a nice master-master setup:

 activ                 standby
+------+     c        +------+
|      |------------->|      |
|abcd  |              |ab    |
|      |              |      |
|      |<-------------|      |
+------+              +------+

Oh my god the node went down:

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MariaDB 10.0.17 Overview and Highlights

MariaDB 10.0.17 was recently released, and is available for download here:

https://downloads.mariadb.org/mariadb/10.0.17/

This is the eighth GA release of MariaDB 10.0, and 18th overall release of MariaDB 10.0.

For the most part, there are not a whole lot of new changes to report for this release, but there is a new version of the Audit Plugin and many other engines have been updated as well.

Here are the main items of note:

  1. The new version of the Audit Plugin is 1.2 is included with the following new features:
    • In the audit log passwords are now masked, i.e. the password characters are replaced with asterisks.
    • It’s now possible to filter logging to include only DDL (CREATE, ALTER, etc.) or DML (INSERT, UPDATE, etc.) statements.
    • For more information …
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MariaDB 10.0.16 Overview and Highlights

MariaDB 10.0.16 was recently released (~1.5 months ago on 1/27/2015 – sorry for the delay on my end – I was just extra busy in my spare time recently), and is available for download here:

https://downloads.mariadb.org/mariadb/10.0.16/

This is the seventh GA release of MariaDB 10.0, and 17th overall release of MariaDB 10.0.

For the most part, there are not a whole lot of changes to report for this release, but there are 2 enhancements of note – one being the JSON table type (still *experimental*) and the other a new variable to aid with index statistics calculations on large tables, as well as some security fixes.

Here are the main items of note:

  1. Updates to the CONNECT handler (supporting the …
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systemd Centos7 => MySQL/MariaDB

As the systemd integration keeps on getting forward. It is hardly to be ignored by us MySQL folks :)

Lets have a look into a simple problem, you are not going to solve like you used to solve it. (At least on Centos7 installing the MariaDB package)

Increasing table_open_cache was only a configuration issue. As mysqld was started as root and then switching to the unix user mysql. On Centos7 this was not working anymore. As MariaDB/MySQL ist startet with a service file starting the process as user mysql:

[Service]
Type=simple
User=mysql
Group=mysql
..

As not root (having the right capability) it will be not able to change the open files limit. In the error log you are going to find something like:

150303 11:57:02 [Warning] Changed limits: max_open_files: 1024  
 max_connections: 214  table_cache: 400

Reading the …

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LKML: Live patching for 3.20

https://lkml.org/lkml/2015/2/9/534

Building on the original kSplice idea and combining the efforts of the work done at Red Hat and SuSE, common infrastructure is now ready to be put into the Linux 3.20 mainline kernel – Red Hat and SuSE have already committed to using this.

I still reckon it’s freaky trickery, but heck – it works, and it’s great for server environments that have no redundancy (I prefer to fix that issue!) and can’t afford any downtime.

Severalnines News & Tools: New DevOps Guide Webinar, Load Balancing for MySQL Replay and More..

February 4, 2015 By Severalnines Check Out Our Latest Technical Resources for MySQL, MariaDB & MongoDB Clusters

 

Like every month, we have created new content and tools for you; here is a summary of what we’ve published. Please do check it out and let us know if you have any comments or feedback.

 

New Live Technical Webinars

 

A DevOps Guide to Database Infrastructure Automation for eCommerce

Tuesday, February 17th

 

Infrastructure automation isn’t easy, but it’s not rocket science either, says Riaan Nolan. Automation is a worthwhile investment for retailers serious about eCommerce, but deciding on which …

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