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GlassFish scales and configures very quickly for Micello - the "indoor Google Maps" company
We all (at least majority of us) use some sort of maps to reach from one destination, say home, to another destination, say a shopping mall or a convention center. But once you've reached the mall then you switch to a different set of tools to navigate that is typically either a paper flyer or sign boards within the mall. Micello.com fills that gaps by providing maps for any indoor locations like airport, shopping malls, convention centers, retail centers, and college campus.


Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

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Tuning MySQL Server Settings

The default configuration file for MySQL is intended not to use many resources, because its a general purpose sort of a configuration file. The default configuration does enough to have MySQL running happily with limited resources and catering to simple queries and small data-sets. The configuration file would most definitely need to be customized and tuned if you intend on using complex queries and when you have good amount of data. Most of the tunings mentioned in this post are applicable to the MyISAM storage engine, I will soon be posting tunings applicable to the Innodb storage engine. Getting started...

GlassFish scales and configures very quickly for Micello - the "indoor Google Maps" company
We all (at least majority of us) use some sort of maps to reach from one destination, say home, to another destination, say a shopping mall or a convention center. But once you've reached the mall then you switch to a different set of tools to navigate that is typically either a paper flyer or sign boards within the mall. Micello.com fills that gaps by providing maps for any indoor locations like airport, shopping malls, convention centers, retail centers, and college campus.


Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

[Read more]
GlassFish scales and configures very quickly for Micello - the "indoor Google Maps" company
We all (at least majority of us) use some sort of maps to reach from one destination, say home, to another destination, say a shopping mall or a convention center. But once you've reached the mall then you switch to a different set of tools to navigate that is typically either a paper flyer or sign boards within the mall. Micello.com fills that gaps by providing maps for any indoor locations like airport, shopping malls, convention centers, retail centers, and college campus.


Their application is built using "scalable stack" of GlassFish and MySQL, uses RESTful Web services, and has given them a 99.9% uptime in the past few months - no wonder its used to create indoor maps for 50 malls in Singapore. Listen …

[Read more]
Drizzle7 Beta!

Just in case you missed it, I’m rather thrilled that our latest tarball of Drizzle is named Beta. Specifically, we’re calling it Drizzle7. Seven is a very nice number, and it seems rather appropriate.

This release is for a stand alone database server. A lot of the infrastructure for replication is there (with testing), but the big thing we want to hammer on and get perfect here is Drizzle7 as a stand alone database server.

Can I trust it? If you trust InnoDB to store your data, then yes, you can trust Drizzle (it uses InnoDB too)

Percona Server scalability on multi-cores server

We now have hardware in our test lab that represents the next generation of commodity servers for databases. It’s a Cisco UCS C250 server, powered by two Intel Westmere CPUs (X5670 @ 2.93GHz). Each CPU has 6 cores and 12 threads. The most amazing part is the amount of memory. It has 384GB of RAM, which is actually more space than the disks contain.  The disks are 270GB in total, with the underlying configuration RAID10 over eight 2.5″ 15K RPM disks. To make the system even more powerful, I put a FusionIO 320GB SLC card in the PCI-E slot. Here is a link to the box specs.

The server was generously provided by Cisco Systems, Inc.

So, obviously I’m anxious to …

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Pentaho Kettle Solutions

I have several favorite authors -- Tim Dorsey, Clive Cussler, and few others that I buy their latest book just because I trust the quality of their work.  Now on that list are Roland Bouman, Jos van Dongen, and Matt Casters.  In a follow up to Bouman's and van Dongen's Pentaho Solutions: Business Intelligence and Data Warehousing with Pentaho and MySQL, the have now produced Pentaho Kettle Solutions which explores the often murky world of ETL and data integration. 

Kettle can be confusing as there are many components with  names such as spoon and pan but these tools are valuable to any DBA who has to feed data into an instance.  If you have a data ware house the tools are invaluable.

This book …

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Resolving the “Can’t create IP socket: No such file or directory” Error on Windows

Every now and again, when installing or upgrading MySQL on Windows, mysqld will not start, and it’s not due to any changes in the config file, using some old config option, permissions, something changed/removed, or anything else. It just simply fails, when you know it should work.

If you’re lucky, you’ll at least see the “Can’t create IP socket: No such file or directory” error in the error log.

However, the above error is generated when you invoke mysqld from the command line, and not via the service.

So if you’re not seeing any error on the console, or in the error log, when starting mysql via the service, then try it from the command line, so you can perhaps get more information in the error log.

The “Can’t create IP socket: No such file or directory” error is not very specific, nor is it helpful in determining the problem (especially since this in on Windows).

However, I’ve …

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O’Reilly MySQL 2011 conference CfP is open

Some people seem unclear about whether there will be a 2011 MySQL conference from O’Reilly. There most definitely will be, and the CfP is open. We are looking for speakers. I’m on the speaker selection committee again this year for the Nth time, and my advice from past years still stands. This year we’re also looking for a greater diversity of database products, including other relational databases, NoSQL databases, and ancillary technologies.

Related posts:

  1. Postgres folks, consider the 2011 MySQL …
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Drizzle7 Beta Released! (now with MySQL migration!)

Today is a big day for us working on the Drizzle project.  Our first official Beta! We have come a long way since the original MySQL 6.0 fork and we couldn’t have done it without the many community contributors involved, so many thanks to everyone who has helped us to get here (you know who you are).

One feature I have been working on recently is a MySQL migration tool.  This is basically a large modification to drizzledump which can do two extra things:

Firstly, it will automatically detect whether it is connecting to a MySQL or Drizzle server.  When connecting to a MySQL server it will automatically convert the table structures and data to create a Drizzle compatible dump file.

On top of this there are new options so that drizzledump can connect straight to a Drizzle server at the same time as a MySQL server and pipe the data …

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