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Displaying posts with tag: MySQL (reset)
MySQL Notifier 1.1.5 has been released

The MySQL Windows Experience Team is proud to announce the release of MySQL Notifier version 1.1.5, the  latest addition to the MySQL Installer for Windows.

MySQL Notifier 1.1.5 introduces the following features:

 

  • The MySQL Utilities can now be opened from MySQL Notifier if installed separately from MySQL Workbench (it is no longer bundled with MySQL Workbench 6.x).
  • Added Workbench connections edition capability right from the Monitor MySQL Server Instance window of the MySQL Notifier (accessed through Actions > Manage Monitored Items… > Add… > MySQL Instance). Any of the listed MySQL Workbench connections can be right-clicked and a new “Edit Connection” context menu is available for users to edit the Workbench connection properties.
  • Changed the way the Workbench connections and servers files are monitored, now the Notifier detects automatically …
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Percona Monitoring Plugins 1.1, now with Zabbix support

Percona is glad to announce the release of Percona Monitoring Plugins 1.1. The components are designed to integrate seamlessly with widely deployed solutions such as Nagios, Cacti and Zabbix, and are delivered in the form of templates, plugins, and scripts.

In this release we have added MySQL template for Zabbix 2.0.x adopted from the existing Cacti one.

Changelog:

* Added MySQL template for Zabbix 2.0.x (first release)
* Added FreeBSD support to Nagios plugins, partially rewritten pmp-check-unix-memory (bugs 1249575, 1244081)
* Added new options to ss_get_mysql_stats.php to better support pt-heartbeat (bugs 1253125, 1253130)
* ss_get_mysql_stats.php script was opening multiple connections to the server …

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InnoDB supports plugin parser in fulltext index

InnoDB Fulltext Search now supports plugin parser in MySQL 5.7.3 release. It is a compatible feature as for MyISAM Fulltext Search. So the syntax and usage remain to be largely the same.

A parser plugin can operate in either of two roles:

a) The plugin can replace the built-in parser. In this role, the plugin reads the input to be parsed, splits it up into words, and passes the words to the server (either for indexing or for word accumulation).

b) The plugin can act in conjunction with the built-in parser by serving as a front end for it. In this role, the plugin extracts text from the input and passes the text to the parser, which splits up the text into words using its normal parsing rules.

If you want to write your own full text plugin, please refer to http://dev.mysql.com/doc/refman/5.7/en/writing-full-text-plugins.html.

If you have a existing plugin parser for MyISAM, there would be some minor …

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Percona XtraDB Cluster 5.6.15-25.2 first Release Candidate is now available

Percona is glad to announce the first RC release of Percona XtraDB Cluster 5.6 on December 18th, 2013. Binaries are available from downloads area or from our software repositories.

Based on Percona Server 5.6.15-63.0 including all the bug fixes in it, Galera Replicator 3.2 and on Codership wsrep API 5.6.15-25.2 is now the first …

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JSON UDFs: is it hard to type keys?

Currently, if you want to search a key using JSON UDFs you have to specify each its part as a separate argument to the function: JSON_CONTAINS_KEY(doc, 'root', 'child', 'child of child', 'child of child of child', etc.....). This way of working with parameters is easy for developer, less error-prone, but can be not very beautiful.

I was suggested by some of users to change it to '/parent/child/child-of-child/...' or to 'parent:child:child-of-child:...' There are, probably, can be other suggestions. What do you like the best? How do you feel about current style with separate argument for each key element? Should we change or extend this syntax?

Oracle Linux 6.5, MySQL 5.5, 5.6 & 5.7

So how do you get MySQL 5.5, 5.6, or 5.7 on the latest Oracle Linux? Morgan had a great post on Installing MySQL 5.7 DMR3 with the official yum repos. This blog is about uprading from Oracle Linux 6.4 to 6.5 and getting a recent version of MySQL installed.

The first step, if you are running Oracle Linux 6.4, is to type yum install to upgrade to 6.5. Be sure to read the release notes and that you are pointing to the Public Yum Repository.

Use can use the Add/Remove Software tool to install MySQL 5.1. But who wants to run an old version of MySQL on a new, hot Linux. But let’s pretend you did install 5.1 when you installed 6.4 and now you are all sixes and sevens. So what do you do?

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Single thread performance regression in 5.6 - Replication

 At Facebook, we have upgraded most of MySQL database tiers to 5.6, except very few tiers that have a special requirement -- very fast single threaded replication speed.

 As Oli mentioned, single threaded performance is worse in 5.6. The regression is actually not visible in most cases. For remote clients, the performance regression is almost negligible because network latency is longer than 5.1->5.6 overhead. If clients are running locally but MySQL server is disk i/o bound, the overhead is negligible too because disk i/o latency is much longer than 5.1->5.6 overhead.

 But the regression is obvious when clients run locally and queries are CPU bound. The most well known local client program for MySQL is SQL Thread (Replication Thread). Yes, 5.6 has a slower replication performance problem, if SQL thread is …

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Webinar – Automated Sharding and High Availability with MySQL Fabric


On Tuesday 17th December, we’ll be presenting a webinar on the latest developments for MySQL Fabric (a framework for managing pools of MySQL server – together with 2 applications: automated sharding and High Availablity). As always, the webinar is free and you should register here.

This is your opportunity to hear the details directly from the engineering team and put your questions to them.

This session will present MySQL Fabric and help you understand how you will be able to leverage it to address your scaling needs:

  • Architecture for performance of a sharded deployment
  • Management of MySQL server farms via MySQL Fabric
  • MySQL Fabric as a tool for …
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Upgrading from MySQL 5.1 to MariaDB 5.5

In my last post, a tale of two MySQL upgrades, a few folks asked if I would outline the process we used to upgrade, and what kind of downtime we had.

Well, the processes were different for each upgrade, so I will tackle them in separate blog posts. The first step was to upgrade all our MySQL 5.1 machines to MariaDB 5.5. As mentioned in the previous post, MariaDBs superior performance for subqueries is why we switched and we switched back to MySQL for 5.6 to take full advantage of the performance_schema.

It is not difficult to blog about our procedure, as we have documentation on each process. My first tip would be to do that in your own environment. This also enables other folks to help, even if they are sysadmins and not normally DBAs. You may notice the steps contain items that might be obvious to someone who has done maintenance before we try to …

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Analyze and Optimize MySQL Performance

If the performance of your MySQL servers is important to you, performance tuning is key.

In the 4-day MySQL Performance Tuning course, you learn to analyze and optimize the performance of the MySQL Database, using the tools necessary for monitoring, evaluating and tuning.

You can take this course as a:

  • Training-on-Demand event: Start training within 24 hours of registration and take this training at your own pace.
  • Live-Virtual event: Attend a live event from your own desk - no travel required. You can choose from a selection of events already on the schedule.
  • In-Class event: Travel to an education center to take this training. Below is a selection of the events already on the schedule. …
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