Donkey system is a fully automatic MySQL database change system.
It gives a great help both to the release of the business and the company’s automated operation and maintenance.

Donkey.pptx
Donkey_intro.pdf

Based on messages, we create mysql replication platforms , using async message to build strong distributed subscription system.

read this PDF : http://www.vmcd.org/docs/MySQL_async_message.pdf

Hello dear readers and attendees,

This is the post that I will be/ will have been referencing during my presentation to the Seattle Central Community College’s Byte club on Thursday, December 10th at 1500-1630.

I will begin with a bit of an autobio and find out what kind of students we have in attendance. Please feel free to comment if you’d like to keep in touch before or after the presentation. I will discuss some of the bits and pieces of some industry standard platforms which I’ve developed, deployed, maintained, managed, co-operated, administered and replaced. We can discuss some of the patterns that work well in the industry, and some that are a bit harder to tame.

Once we have touched most of the areas of specialization represented at the meeting, I will dive in to an AngularJS demo I am developing in github here:

…

Interview mit Lukas und mir auf der DevOpsCon 2015 in Berlin, kurz nach dem Talk über Private Cloud mit OpenSource.

In this article, we introduce myawr and mongoawr system .

Read this PDF, you will learn how to configure them.

How to configure AWR system.

Architecture of WEBM system.

Reference:

http://www.vmcd.org/2014/10/webm_v2-has-been-released/
http://www.vmcd.org/2014/09/webm-mysql-database-performance-web-monitor/

View this PDF:

http://www.vmcd.org/docs/How%20to%20configure%20WEBM.pdf

Foto: Ana Rey CC-BY-SA-2.0El “Concurso Universitario de Software Libre” (CUSL) es una iniciativa similar a la del Google Summer of Code, pero específicamente dirigida la comunidad universitaria y de estudiantes de bachillerato españoles y organizada por una grupo de Oficinas de software libre de universidades.

Como parte del esfuerzo para promover el crecimiento del ecosistema del software libre, así como introducir a talento joven en el desarrollo de aplicaciones y tecnologías libres, DBAHire.com acaba de convertirse en patrocinador plata de la competición, proporcionando recursos para los premios, gastos de …

MySQL 5.7 will be a great milestone in MySQL total history.
Oracle has released many useful new features in LAB version . MySQL is becoming more similar to Oracle database

Read this presentation I post on slideshare:

MySQL 5.7 milestone

Recently, we create a mysql data warehouse which is based on message queue.

Most companies must prepare for particular queries in their systems if they consider to split their databases or tables into many pieces.

some problems should be solved in this situation:

1. how to get correct results in-time
2. how to build strong data warehouse for future analyst

These policies were used by YHD

They have already deployed a middle-ware layer to support these requests (between web apps and databases). Every aggregation SQL was splited into many small SQLs and runs in every data nodes.The Final result is the aggregation of these all small SQLs. In this procedure, everything was computed in memory to get high performance.

In data warehouse layer, they use self-defined ETL tools to extract data from different databases to oracle-Exadata platform. Log-based data was put into hadoop and hbase.

In this post ,we mainly talk about MHA GTID behavior, we test different cases and find something is different from previous versions .

we have four machines for this test.

environment:

master server: 10.0.128.77
slave server : 10.0.128.110/113/114
port : 3306 

————————————————————————————–

we first do normal failover .

kill master server

we find MHA outputs:

Tue Dec 30 13:32:14 2014 - [warning] Got error on MySQL connect ping: DBI connect(';host=10.0.128.77;port=3306;mysql_connect_timeout=1','dbadmin',...) failed: Lost connection to MySQL server at 'reading initial communication packet', system error: 111 at /usr/share/perl5/vendor_perl/MHA/HealthCheck.pm line 97
2013 (Lost connection to MySQL server at 'reading initial communication packet', system error: 111)
Tue Dec 30 13:32:14 2014 - [info] Executing secondary network check …