Installing Apache2 With PHP5 And MySQL Support On Fedora 20 (LAMP)

LAMP is short for Linux, Apache, MySQL, PHP. This tutorial shows how you can install an Apache2 webserver on a Fedora 20 server with PHP5 support (mod_php) and MySQL support.

Over the last few days, the Percona team has spent a lot of time evaluating the impact of the Heartbleed bug (CVE-2014-0160) for our customers and for the users of our software. We published a formal disclosure a few days ago. However, I thought a quick summary and some additional information would be good to provide for our MySQL Performance Blog readers.

First, I want to point out that “Heartbleed” is an issue in a commonly used third-party library which typically comes with your operating system, so there is a lot of software which is impacted. An openly exposed service, which is typically a website or some form of API, can potentially cause the biggest impact for anyone. Even though we talk a lot about MySQL Server (and its variants), it will not be the primary concern for organizations following best practices and not exposing their MySQL server to …

Summary
This post will offer a very simple demonstration of how you can use MySQL 5.7 for Spatial features within your applications. In order to demonstrate this, I’ll walk through how we can determine the 10 closest Thai restaurants to a particular location. For this example, we’ll be using the apartment that I lived in when I first started working at MySQL, back in 2003.

For more details on all of the new GIS related work that we’ve done in MySQL 5.7, please read through these blog posts from the developers:

• Why Boost.Geometry in MySQL?
• Making Use of …

MySQL adopts a very different approach to 'NoSQL' than other databases. With the memcached plugin, MySQL provides the speed and high availability benefits of a standard 'NoSQL' database solution, while mitigating many of the drawbacks to this approach.

A traditional memcached application bypasses the SQL layer entirely, and stores all its data in memory. This makes data access extremely fast, but there is a risk that the data will disappear in the event of a system problem. 

The MySQL memcached plugin for InnoDB also bypasses the SQL and optimization layers, resulting in excellent performance. It goes further, writing key-value data directly to  InnoDB tables. The result is fast data access while retaining the advantages provided by the existing relational database infrastructure, such as the ability to run complex queries with SQL, maintain data integrity, provide real-time analytics to the business, and work …

Ok, so I wanted to look into the new compression options of MEB 3.10.

And I would like to share my tests with you. Remember, they’re just this, tests, so please feel free to copy n paste and obtain your own results and conclusions, and should I say it, baselines, in order to compare future behaviour, on your own system.

An Oracle Linux 6.3 virtual machine with 3Gb RAM, 2 virtual threads, on a 1x quad core, windows laptop. Not pretty, but hey.

So, these tests are solely about backup. I’ll do restore when I get some *more* time.

First up, lets compare like with like, i.e. MEB version 3.9 & 3.10:

Let’s make this interesting, hence, want to use as much resources available as possible, read, write, process threads and number of buffers.

mysqlbackup --user=root --password=oracle --socket=/tmp/mysql5614.sock \
--backup-dir=/home/mysql/MEB/test --with-timestamp …

Ok, so I wanted to look into the new compression options of MEB 3.10.

And I would like to share my tests with you. Remember, they’re just this, tests, so please feel free to copy n paste and obtain your own results and conclusions, and should I say it, baselines, in order to compare future behaviour, on your own system.

An Oracle Linux 6.3 virtual machine with 3Gb RAM, 2 virtual threads, on a 1x quad core, windows laptop. Not pretty, but hey.

So, these tests are solely about backup. I’ll do restore when I get some *more* time.

First up, lets compare like with like, i.e. MEB version 3.9 & 3.10:

Let’s make this interesting, hence, want to use as much resources available as possible, read, write, process threads and number of buffers.

mysqlbackup --user=root --password=oracle --socket=/tmp/mysql5614.sock \
--backup-dir=/home/mysql/MEB/test --with-timestamp …

We are about to release upgrades to both SQLyog and MONyog with an important fix: linked libraries possibly vulnerable to the ‘Heartbleed’ OpenSSL bug have been upgraded to non-affected versions (the new MONyog release will have a few more fixes as well).

Since this security issue became known a few days ago, media and Internet have swollen with information about vulnerable systems. There is probably both a lot of facts and fiction circulating.

A good summary appeared in the Percona blog. It mostly focuses on server-side vulnerabilities. However this blog indicates that the vulnerability may also be exploitable from clients linking a vulnerable OpenSSL version. SQLyog and MONyog users …

Dotdeb is a repository currently targeting Debian and Ubuntu, providing a nice set of packages for LAMP servers.

Recently, MySQL 5.6 was added to the dotdeb repository. On the surface, this is a very harmless addition. MariaDB is a replacement for MySQL and it should be possible for applications designed for MySQL to easily switch to MariaDB. Therefore MariaDB also includes the libraries that applications using MySQL depend upon, such as libmysqlclient18 and mysql-common. The dpkg package manager looks at the MySQL 5.6 packages in dotdeb and assumes that 5.6 is a higher version than 5.5, which results in it removing or replacing libraries during normal apt-get installation and upgrade procedures.

The problems appear in the following scenarios:

1. apt-get install mariadb-server-5.5 …

If you are a MySQL power user in Korea, its well worth joining the Korean MySQL Power User Group. This is a group led by senior DBAs at many Korean companies. From what I gather, there is experience there using MySQL, MariaDB, Percona Server and Galera Cluster (many on various 5.5, some on 5.6, and quite a few testing 10.0). No one is using WebScaleSQL (yet?). The discussion group is rather active, and I’ve got a profile there (I get questions translated for me).

This is just a natural evolution of the DBA Dinners that were held once every quarter. Organised by OSS Korea, and sometimes funded by SkySQL, people would eat & drink, while hearing …

MySQL 5.6.17 was recently released (it is the latest MySQL 5.6, is GA), and is available for download here:

For this release, I counted 7 “Functionality Added” and/or “Incompatible Change” fixes:

1. Incompatible Change: The AES_ENCRYPT() and AES_DECRYPT() functions now permit control of the block encryption mode and take an optional initialization vector argument.
2. Incompatible Change: The ERROR_FOR_DIVISION_BY_ZERO, NO_ZERO_DATE, and NO_ZERO_IN_DATE SQL modes now are deprecated and setting the sql_mode value to include any of them generates a warning. In MySQL 5.7, these modes do nothing. Instead, their effects are included in the effects of strict SQL mode (STRICT_ALL_TABLES or …