If you missed the recent MySQL Cluster 7.3 GA webinar then the replay is now available here.

In the webinar replay you can learn how MySQL Cluster 7.3 has delivered key features enabling the latest generation of web and mobile services to take advantage of high scalability on commodity hardware, SQL and NoSQL interfaces and 99.999% availability; these include:

• Support for Foreign Key constraints – implemented to be as compatibile with InnoDB as possible
• NoSQL JavaScript connector allowing native access from node.js applications to MySQL Cluster, bypassing the SQL layer
• Browser-based Auto-Installer for fast configuration of production-grade clusters
• Connection Thread Scalability …

Join 7500 others and follow Sean Hull on twitter @hullsean.

There’s a lot of talk on the web about scalability. Making web applications scale is not easy. The modern web architecture has so many moving parts. How can we grapple with the underlying problem?

Also: Why Are MySQL DBAs So Hard to Find?

The LAMP stack scales well

The truth that is half right. True there are a lot of moving parts, and a lot to setup. The internet stack made up of Linux, Apache, MySQL & PHP. LAMP as it’s called, was built to be resilient, dynamic, and scalable. It’s essentially why Amazon works. Why what they’re doing is possible. Windows & .NET …

Memcache access for MySQL Cluster (or NDBCluster) provides faster access to the data because it avoids the SQL parsing overhead for simple lookups – which is a great feature. But what happens if I try to get multiple records via memcache API (multi-GET) and via SQL (SELECT with IN())? I’ve encountered this a few times now, so I decided to blog about it. I did a very simple benchmark with the following script:

#!/bin/bash
mysql_server="192.168.56.75"
mc_server="192.168.56.75"
mysql_cmd="mysql -h${mysql_server} --silent --silent"
mysql_schema="percona"
mysql_table="memcache_t"
mc_port=11211
mc_prefix="mt:"
function populate_data () {
  nrec=$1
  $mysql_cmd -e "delete from ${mysql_table};" $mysql_schema > /dev/null 2>&1
  for rec in `seq 1 $nrec`
  do
    $mysql_cmd -e "insert into ${mysql_table} values ($rec, repeat('a',10), 0, 0);" $mysql_schema > /dev/null 2>&1
  done
}
function mget_via_sql() {
  nrec=$1
  in_list=''
  for rec in …

I made a new tutorial for how to use MySQL to develop Big Data Applications. This is a 'Udacity'/explaining-on-paper style of video which I hope you will enjoy and find helpful.
Please 'like' or retweet if you feel it is informative.

As I mentioned in a previous post that I’d mention how I resolved some additional missing include files when building MySQL on Windows.

In this post I cover 4 missing header files, as they are all related and have to do with polling, and headers (and functions) from libevent, and in the folder /sys. I’m not sure if one should even use these functions from libevent on Windows, as these are not needed for Windows, and may not be beneficial either (that last part I’ve just read briefly about, so I’d need to that a bit more myself to be 100%), but including the headers won’t hurt, as it doesn’t hurt if they don’t exist.

At any rate, here were the 4 related missing header file warnings:

-- Looking for include file sys/devpoll.h
-- Looking for include file sys/devpoll.h - not found
-- Looking for include file sys/devpoll.h
-- Looking for include file …

Percona Server version 5.5.32-31.0

Percona is glad to announce the release of Percona Server 5.5.32-31.0 on July 2nd, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.32, including all the bug fixes in it, Percona Server 5.5.32-31.0 is now the current stable release in the 5.5 series. All of Percona‘s software is …

This week we continue talking about the Openark Kit. Ear candy is the Percona Configuration Wizard, and At the Movies is a keynote from the SkySQL and MariaDB Solutions Day about the SkySQL and MariaDB merger and the MariaDB Foundation.

Openark Kit series:
Part 1
Part 3

Events
DB Hangops - every other Wednesay at noon Pacific time

Upcoming MySQL events

Training
SkySQL Trainings

read more

By default the included Lua within MySQL proxy (0.8.3) does not include socket, necessary for getting microsecond granularity. To setup you have to install Lua and socket on the OS first:

For CentO5

$ sudo yum install lua lua-socket

For Ubuntu

$ sudo apt-get install lua5.1 liblua5.1-socket2

The following enables use within MySQL Proxy.

cp /usr/share/lua/5.1/socket.lua /path/to/mysqlproxy/lib/mysql-proxy/lua
cp -r /usr/lib64/lua/5.1/socket /path/to/mysqlproxy/lib/mysql-proxy/lua
cp -r /usr/lib64/lua/5.1/mime /path/to/mysqlproxy/lib/mysql-proxy/lua

My lua script can now use syntax similar to:

require 'socket'

function read_query( packet )
...
  now=socket.gettime()
  print( string.format("# %s.%3dn%s;n",os.date("%X",now),select(2,math.modf(now))*1000 , query))

With our recent release of TokuMX 1.0, we’ve made some bold claims about how fast TokuMX can run MongoDB workloads. In this post, I want to dig into one of the big areas of improvement, write performance and reduced I/O.

One of the innovations of TokuMX is that it eliminates a long-held rule of databases: to get good write performance, the working set of your indexes should fit in memory. The standard reasoning goes along the lines of: if your indexes’ working set does not fit in memory, then your writes will induce I/O, you will become I/O bound, and performance will suffer. So, either make sure your indexes fit in …

Installing Nginx With PHP5 (And PHP-FPM) And MySQL Support (LEMP) On Ubuntu 13.04

Nginx (pronounced "engine x") is a free, open-source, high-performance HTTP server. Nginx is known for its stability, rich feature set, simple configuration, and low resource consumption. This tutorial shows how you can install Nginx on an Ubuntu 13.04 server with PHP5 support (through PHP-FPM) and MySQL support (LEMP = Linux + nginx (pronounced "engine x") + MySQL + PHP) .