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Archive for July 22nd, 2011

Charla de MySQL y Alta Disponibilidad del #crcOTNTour

Para aquellos que no pudieron acompañarnos en el OTN2011 la gran mayoría de las charlas quedaron grabadas así que aquí les entregamos esta primera por parte de la gente de MySQL Latinoamérica, donde Pedro Andrade y Manuel Contreras nos hablan de como implementar MySQL en ambientes de alta disponibilidad.

22/07/2011 | By | Reply More

Solucionar Error 2805 en Mysql-Cluster: ndbd can’t connect to mgm – ERROR 2805

Para todos aquellos a los que les haya tocado ver este error, asegúrense que las localizaciones (carpetas/directorios) que especificaron dentro de la configuración que crearon en cada nodo existan antes de comenzar.

22/07/2011 | By | Reply More

Passing Parameters To A MYSQL Query Inside A Shell Script

Passing Parameter To A MySQL query Inside A Shell Script.
From time to time, I found myself need to run some adhoc queries to pull data. I found that it was more convenience to create a shell script that could accept the query files as variable and can pass variables to the query.
Here is an example. I have a query to pull customer data from a customer table. It looks like this:

22/07/2011 | By | Reply More

MySQL How To: Table Corruption in MySQL Database

A Request Tracker (RT) enables you to keep a record of all the operations performed in MySQL database. RT creates a session by using a MySQL database, a PERL (Practical Extraction and Report Language) based main engine and front-end web and mail interfaces. However, if RT is unable to store your transactions made into the MySQL component, chances are that your MySQL component is either corrupt or missing. Corruption of MySQL database component can occur due to MySQL database server malfunctioning, operating system failure, malicious software like virus and more. In such situations, you need to recover the MySQL database component by restoring it from the latest backup. But, if you have not maintained any backup or backup falls short of providing the required data, then you should repair your corrupted MySQL component to extract data from it. To do so, you need to use advanced application.

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