As many of you know I'm actively developing libAttachSQL and am rapidly heading towards the first beta release.  For those who don't, libAttachSQL is a lightweight C connector for MySQL servers with a non-blocking API.  I am developing it as part of my day job for HP's Advanced Technology Group.  It was in-part born out of my frustration when dealing with MySQL and eventlet in Python back when I was working on various Openstack projects.  But there are many reasons why this is a good thing for C/C++ applications as well.

What you may not know is I will be giving a talk about libAttachSQL, the technology behind it and the decisions we made to get here at  …

With MySQL Enterprise Backup(MEB) 3.9.0 we had introduced full instance backup feature for cloning the MySQL server. Now with MEB 3.11.0 we have enhanced the feature by copying all the master-slave setup files like MySQL server binary logs(will be referred as 'binlogs'), binary log index files, relay logs of slave, relay log index files, master info of slave, slave info files. As part of full instance backup, copying of binlog files is default behavior MEB-3.11.0 onwards. DBA should be aware of the fact that current full instance backup is bigger than the backups with old MEB's.

As every event on MySQL production database goes as a entry to binlog files in particular format, binlog files could be huge. Backing of huge binlog and/or relaylog files should not impact the performance of MySQL server. Hence, all the binlog files, …

With the upcoming release of MySQL 5.7 I begin to see a problem which I think needs attention at least for 5.8 or whatever comes next. The GA release cycle is too long, being about 2 years and that means 3 years between upgrades in a production environment More people use MySQL and the data … Continue reading Making MySQL Better More Quickly

The early release of Fedora 20 disallowed installation of MySQL Workbench but the current version allows it. Almost like Tom Cruise’s Edge of Tomorrow without the drama. All you need to do is follow my earlier instructions for installing MySQL on Fedora 20. I’d check your kernel to know whether it’s supported. You can check that with this command:

<shell> uname -r

My Fedora is at the following version:

3.14.8-200.fc20.x86_64

Then, you can install MySQL Workbench with yum, like this:

<shell> sudo yum install mysql-workbench

It generates the following log file, and if you have Oracle 11g XE …

When you're testing out a new version of MySQL in a non-production environment there is a temptation to go wild and turn on all kinds of new features.  Especially if you're reading the changelogs or the manual and scanning through options.  You want to start with the most reasonable set of defaults, right?  Maybe you're even doing benchmarks to optimize performance using all the new bells and whistles.

Resist the temptation!  If your goal is to upgrade your production environment then what you really want is to isolate changes.  You want to preform the upgrade with as little to no impact as possible.  Then you can start turning on features or making changes one-by-one.

Why?  Anytime you're doing a major upgrade to something as fundamental as your core RDBMS, there are many ways things can go wrong.  Performance regressions & incompatible changes, client/server incompatibilities …

For those of you lucky enough to come and listen to all the great talks within the MySQL Central @ Oracle OpenWorld this year, I’ll also be giving a talk about the MySQL sys schema this year.

This builds upon the talks that I’ve given in the past around Performance Schema, as well as some of the great looking talks on Performance Schema that are on the schedule this year by other MySQL @ Oracle engineers (see below).

The schedule builder is now live, here are some of the other interesting ones on my list that I’d like to attend:

• …

MySQL team is attending the PyCon Japan conference on September 13-15, 2014, our local colleagues will be available for your questions either at our MySQL booth or around the conference. We are also having a MySQL Lightening talk, please watch the conference schedule for any updates. 

Earlier this week I blogged about the MySQL Central @ OpenWorld tutorials. Let's focus today on the Hands-On Labs (HOLs), giving you the opportunity to get hands-on experience across a number of MySQL areas.

All HOLs will be held at the Nikko hotel. Here is the schedule:

Tuesday, September 30

DevOps Made Easy with MySQL Utilities

Charles Bell, Software Development Manager, Oracle - 10:15 AM - 11:15 AM Hotel Nikko - Bay View

Practical Introduction to MySQL Monitoring for Oracle Enterprise Manager Users

…

戴尔近日推出了旗下的13G服务器,其主力机型为R730xd,包含了诸多的特性,为其成为主流db server以及规模存储集群打下了良好的基础。

具体参考：http://www.storagereview.com/dell_poweredge_13g_r730xd_review
http://www.storagereview.com/dell_poweredge_gen13_servers_released

具体增强为：

1.CPU 为intel haswall最新架构,减少了功能的损耗
2.更多的插槽,扩展为可支持18块1.8寸SSD的槽位 以及多种磁盘混插的模式
3.DDR4 memory 拥有更高的主频
4.更加智能的基于iDRAC的装机模式
5.扩展的万兆网卡
6.基于iDRAC8的自动管理功能 包括服务器性能的监控,邮件报警(app端)等等
…

I was fortunate to attend an Ops discussion about databases at the OpenStack Summit Atlanta this past May as one of the panelists. The discussion was about deadlock issues OpenStack operators see with Percona XtraDB Cluster (of course this is applicable to any Galera-based solution). I asked to describe what they are seeing, and as it turned out, nova and neutron uses the SELECT … FOR UPDATE SQL construct quite heavily. This is a topic I thought was worth writing about.

Write set replication in a nutshell (with oversimplification)

Any node is writable, and replication happens in write sets. A write …