May 21st, 2009 |

Sun Announces MySQL 5.4 Release

Sun Microsystems, Inc. today announced MySQL™ 5.4, a new version of the world’s most popular open source database, designed to deliver significant performance and scalability improvements to MySQL applications. A preview version of MySQL 5.4 is available now for download at http://www.mysql.com/5.4.

 
Today’s announcement was made at the seventh annual MySQL Conference & Expo being held this week at the Santa Clara Convention Center. With more than 2,000 attendees, it is the world’s largest event for open source database developers, DBAs, vendors and corporate IT managers.
 
MySQL 5.4 includes performance and scalability improvements enabling the InnoDB storage engine to scale up to 16-way x86 servers and 64-way CMT servers. MySQL 5.4 also includes new subquery optimizations and JOIN improvements, resulting in 90% better response times for certain queries*. These performance and scalability gains are transparent and don’t require any additional application or SQL coding to take advantage of them.
 
In the conference’s opening keynote, Karen Tegan Padir, vice president of Sun’s MySQL and Software Infrastructure Group, addressed the MySQL community, "Without any modifications to your applications, MySQL 5.4 will transparently increase the performance and scalability of your applications, to enable them to scale under more demanding user and data processing loads. MySQL 5.4 is also better suited for scale-up deployments on SMP systems. Please download today’s preview version and send us your feedback – we want this to be the fastest, highest-quality release of MySQL ever."
 
"Our initial tests of MySQL 5.4 show our application performance is up to 40% faster right out-of-the-box," said Phil Hildebrand, manager of Database & Deployments at thePlatform (www.theplatform.com). "We’ll continue to follow this release closely for additional improvements."
 

MySQL 5.4 Features & Benefits

A number of new enterprise features and compelling fixes are planned for MySQL 5.4, including:

  • Scalability improvements — these fixes allow the InnoDB storage engine to scale up to 16-way x86 servers and 64-way CMT servers, more than doubling its previous capability;
  • Subquery optimizations — improves the performance of analytic query operations, with some subqueries now executing in a fraction of the time compared to previous MySQL versions;
  • New query algorithms — utilizes main memory to speed up the execution time of multi-way joins, especially for MySQL Cluster because the number of round-trips between the server and cluster nodes is minimized;
  • Improved stored procedures — enables more robust error management through the implementation of the SIGNAL/RESIGNAL functions, so applications can more easily rely on stored procedures for business logic;
  • Improved prepared statements — Output parameters will now be supported in prepared statements, which increases their functionality;
  • Improved Information Schema — provides more metadata access to parameters and data return types that stored procedures use, which allows much more information to be made available for developers using connectors such as ODBC and JDBC;
  • Improved DTrace support — improves diagnostics and troubleshooting capabilities for MySQL on the Solaris(TM) Operating System.
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May 12th, 2009 |

How to promote any user as Gforge Admin [Hack]

Sometime we would like to have more than one admin user in gforge and this can be accomplished using the below step directly in gforge database

  • Get user_id i.e value in id field from user table
  • Add that id value in the site_roles table
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May 12th, 2009 |

How to delete user permanently from Gforge Advance server

Non-commercial version of Gforge Advance server is limited to 15 users only. Admin can’t delete the user permanently if user gets created by mistake using the gforge admin interface. We have to go to gforge database to delete the user permanently. Below the steps to do the same

  • Get user id from user table e.g id =108
  • Open table audit_trail and remove all records where user_id =108
  • Open mailmen table and delete all records where user_id=108
  • Open user_session table and delete all records where user_id =108
  • Open user_preference table and delete all records where user_id=108
  • Open user table and delete the record where id=108
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May 12th, 2009 |

How to recover Gforge Admin [Hack]

If you have deleted the Admin user from Gforge accidently then follow the steps steps below to activate the user again

  • Open the Gforge database
  • Get user id from User table 
  • Add user id in site_admin table
  • Set 1 in the status field in the user table
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