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Displaying posts with tag: percona server (reset)
How to Replace MySQL with Percona Server on a CPanel, WHM VPS or Dedicated Server

In this blog post, we’ll look at how to replace MySQL with Percona Server for MySQL on a CPanel, WHM VPS or dedicated server.

In general, CPanel and WHM have been leaning towards support of MariaDB over other flavors. This is partly due to the upstream repos replacing the MySQL package with MariaDB (for example, on CentOS).

MySQL 5.6 is still supported though, which means they are keeping support for core MySQL products. But if you want to get some extra performance enhancements or enterprise features for free, without getting too many bells and whistles, you might want to install Percona Server.

I’ve done this work on a new dedicated server with the latest WHM and CPanel on CentOS 7, with MySQL 5.6 installed. …

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Enabling and Disabling Jemalloc on Percona Server

This post discusses enabling and disabling jemalloc on Percona Server for MySQL.

The benefits of jemalloc versus glibc for use with MySQL have been widely discussed. With jemalloc (along with Transparent Huge Pages disabled) you have less memory fragmentation, and thus more efficient resource management of the available server memory.

For standard installations of Percona Server 5.6+ (releases starting with 5.6.19-67.0), the only thing needed to …

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Percona Server for MySQL 5.5.53-38.5 is now available

Percona announces the release of Percona Server for MySQL 5.5.53-38.4 on November 23, 2016. Based on MySQL 5.5.53, including all the bug fixes in it, Percona Server for MySQL 5.5.53-38.5 is now the current stable release in the 5.5 series.

Percona Server for MySQL is open-source and free. You can find release details in the 5.5.53-38.5 milestone on Launchpad. Downloads are available here and from the Percona Software Repositories.

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Percona Server 5.5.53-38.4 is now available

Percona announces the release of Percona Server 5.5.53-38.4 on November 18, 2016. Based on MySQL 5.5.53, including all the bug fixes in it, Percona Server 5.5.53-38.4 is now the current stable release in the 5.5 series.

Percona Server is open-source and free. You can find release details in the 5.5.53-38.4 milestone on Launchpad. Downloads are available here and from the Percona Software Repositories.

Removed Features:

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Percona responds to CVE-2016-6663 and CVE-2016-6664

Percona has addressed CVE-2016-6663 and CVE-2016-6664 in releases of Percona Server for MySQL and Percona XtraDB Cluster.

Percona is happy to announce that the following vulnerabilities are fixed in current releases of Percona Server for MySQL and Percona XtraDB Cluster:

  • CVE-2016-6663: allows a local system user with access to the affected database in the context of a low-privileged account (CREATE/INSERT/SELECT grants) to escalate their privileges and execute arbitrary code as the database system user (typically “mysql”).
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Percona Server 5.7.15-9 is now available

Percona announces the GA release of Percona Server 5.7.15-9 on October 21, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on MySQL 5.7.15, including all the bug fixes in it, Percona Server 5.7.15-9 is the current GA release in the Percona Server 5.7 series. Percona’s provides completely open-source and free software. Find release details in the …

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Percona Server 5.6.33-79.0 is now available

Percona announces the release of Percona Server 5.6.33-79.0 on October 18th, 2016. Download the latest version from the Percona web site or the Percona Software Repositories.

Based on MySQL 5.6.33, including all the bug fixes in it, Percona Server 5.6.33-79.0 is the current GA release in the Percona Server 5.6 series. Percona Server is open-source and free – this is the …

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Using the loose_ option prefix in my.cnf

In this blog post, I’ll look at how to use the loose_ option prefix in my.cnf in MySQL.

mysqld throws errors at startup – and refuses to start up – if a non-existent options are defined in the my.cnf file.

For example:

2016-10-05 15:56:07 23864 [ERROR] /usr/sbin/mysqld: unknown variable 'bogus_option=1'

The MySQL manual has a solution: use the loose_ prefix option in my.cnf file.

In the prior example, if we specify loose_bogus_option=1 in the my.cnf file, instead of bogus_option=1, mysqld starts successfully and ignores that option.

This is useful in three situations:

  1. Using …
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Percona Server 5.5.52-38.3 is now available

Percona announces the release of Percona Server 5.5.52-38.3 on October 5, 2016. Based on MySQL 5.5.52, including all the bug fixes in it, Percona Server 5.5.52-38.3 is now the current stable release in the 5.5 series.

Percona Server is open-source and free. You can find release details of the release in the 5.5.52-38.3 milestone on Launchpad. Downloads are available here and from the Percona Software Repositories.

Bugs Fixed: …

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Percona Server Critical Update CVE-2016-6662

This blog is an announcement for a Percona Server update with regards to CVE-2016-6662.

We have added a fix for CVE-2016-6662 in the following releases:

From seclist.org:

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