Post: Announcing Percona Server for MySQL version 5.5.29-30.0
…. New Features: Ported the Thread Pool patch from MariaDB. This feature enables the … line option innodb_changed_pages_limit. MySQL option handling would then shadow the …Time in slow query log was...
View ArticlePost: Percona builds with Percona patchsets
… include: microslow patch (enables microsecond resolution in slow logs) execution plan (show info about query execution in slow log) InnoDB …mysql-5.1.26-percona.tar.bz2...
View ArticlePost: Guess what?! Microsecond slow query timing finally available in MySQL!
Vadim asked me yesterday to update Microslow patch for 5.1.21, because the previous one I wrote … new MySQL release. Imagine the expression on my face after I unpacked the sources and found out that...
View ArticlePost: Backport of micro-time patch to mysql 4.1
… decided to make backport of patch to slow-log queries. The patch allows to specify time of slow queries in microseconds and is very helpful in a fight with problematic queries. 4.1 Patch is available...
View ArticlePost: New patches, new builds
...patch | Patch allows redirect output of error.log to syslog-ng | 1.0 | Percona | GPL | Ported from Debian | | microslow_innodb.patch | Extended statistics in slow.log...execution with microseconds...
View ArticlePost: How Percona does a MySQL Performance Audit
… server that has the Percona patches for microsecond logging and additional information in the slow query log output. The stock MySQL server’s limitation of one… use a patched binary, we can use MySQL...
View ArticlePost: The new cool MySQL patch has landed! Check your queries performance!
… choose to log all queries to see those which take less than 1s. Now long_query_time is in microseconds and you… LOGGING OF THE REPLICATED STATEMENTS Normally MySQL will not write into slow log any...
View ArticlePost: Slow Query Log analyzes tools
… investigated Patching Slow Query Logging – First thing we did is created a Patch which allows you to specify slow query time in microseconds rather …across same slow query log first to fix worse...
View ArticlePost: Microslow patch for 5.1.20
… to redirect query log (it’s actually called general log now) and slow log to CSV tables mysql.general_log and mysql.slow_log respectively. The patch will not work… value is in microseconds (0 means...
View ArticlePost: Updated msl (microslow) patch, installation walk-through!
… (microslow) patch was developed a few years ago to allow more precise logging of query execution times into the slow log. Originally MySQL database offered… of those you want to have in your slow...
View ArticlePercona RPMS for RedHat 5 / CentOS 5 x86_64
We prepared RPMs of our release for RedHat 5 / CentOS 5 x86_64 platform. http://www.mysqlperformanceblog.com/mysql/RPM/RHEL5/5.0.62/There was question what patcheset includes and if there is manuals....
View ArticleHow Percona Develops Open-Source Software
Percona has been building and contributing to open-source software since the company was founded, and individually we’ve been doing the same thing for many years. We think it’s a huge value for our...
View ArticleHow (not) to find unused indexes
I’ve seen a few people link to an INFORMATION_SCHEMA query to be able to find any indexes that have low cardinality, in an effort to find out what indexes should be removed. This method is flawed –...
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Percona Server 5.1.47-rel11.0
Dear Community,Percona Server version 5.1.47-rel11.0 is available for download now.The changes in this release include:New featuresPercona Server is now based on MySQL 5.1.47, and XtraDB is now based...
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Percona Server 5.1.53-12.4
Percona Server version 5.1.53-12.4 is now available for download. It is now the current stable release version.Functionality Added or Changed Percona Server 5.1.53-12.4 is based on MySQL 5.1.53. New...
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Tools and tips for analysis of MySQL’s Slow Query Log
MySQL has a nice feature, slow query log, which allows you to log all queries that exceed a predefined about of time to execute. Peter Zaitsev first wrote about this back in 2006 – there have been a...
View ArticlePercona builds with Percona patchsets
Percona has a strong team of MySQL developers and consultants on board, so we decided to prepare builds with our patches and third-party patches which we think are very useful. We actually use these...
View ArticlePercona RPMS for RedHat 5 / CentOS 5 x86_64
We prepared RPMs of our release for RedHat 5 / CentOS 5 x86_64 platform. http://www.percona.com/blog/mysql/RPM/RHEL5/5.0.62/There was question what patcheset includes and if there is manuals. We...
View ArticleNew patches, new builds
We made new patches, improved previous and want to announce new builds for 5.0.62, 5.0.67 and 5.1.26 versions. One of biggest changes we separated releases of 5.0 into two branches. First, just...
View ArticleHow Percona does a MySQL Performance Audit
Our customers or prospective customers often ask us how we do a performance audit (it’s our most popular service). I thought I should write a blog post that will both answer their question, so I can...
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