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Results of EnterpriseDB Open Source Database Survey

EnterpriseDB announced the results of the survey they did a few months ago at OSCON. Now, take the results with a grain of salt as it was done by EnterpriseDB. EnterpriseDB is based on Postgres so there is a vested interest in making Postgres sound good. Results can be skewed depending on how the survey is worded, what options are available as answers and who the respondents are.

The results summary is available for free.

Some key facts:

500 respondents. The download page says "500 corporate IT leaders". Or maybe, 500 open source developers. ;-)

Only 9% of respondents indicated that they preferred commercial solutions over open source solutions. I would guess that a majority of those responding …

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eBox premieres new website

Since I didn’t have any MySQL public courses planned this summer, I’ve been using my work time from the last week in the new eBox website.

I’m still far away from what I’d like, but I’m proud my design skills have improved considerably.

For those of you who still don’t know what it is, eBox is a server for the easy administration of corporate networks. eBox was included with the last release of Ubuntu. See eBox in Ubuntu

Innodb RAID performance on 5.1

I've been doing some benchmarking recently to satisfy the curiosity about 5.1's performance compared with 4.1.  The major question this time revolves around how much additional performance an external RAID array can provide (for us it's typically beyond the 6 drives a Dell 2950 can hold). 


These tests are done on using an MSA-30 drive enclosure with 15k-SCSI drives.  The testing framework is sysbench oltp.  The test names are hopefully fairly obvious:  selects = single selects, reads = range tests, xacts = transaction tests, etc.   Transaction tests are counting individual queries, not transactions.   The "Rdm" tests are using a uniform distribution, whereas the non-'Rdm' tests are 75% of queries are using 10% of the rows.  

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Innodb RAID performance on 5.1

I've been doing some benchmarking recently to satisfy the curiosity about 5.1's performance compared with 4.1.  The major question this time revolves around how much additional performance an external RAID array can provide (for us it's typically beyond the 6 drives a Dell 2950 can hold). 


These tests are done on using an MSA-30 drive enclosure with 15k-SCSI drives.  The testing framework is sysbench oltp.  The test names are hopefully fairly obvious:  selects = single selects, reads = range tests, xacts = transaction tests, etc.   Transaction tests are counting individual queries, not transactions.   The "Rdm" tests are using a uniform distribution, whereas the non-'Rdm' tests are 75% of queries are using 10% of the rows.  

[Read more]
On open source and cloud computing

Last week I wrote about whether Google’s potential acquisitions might be stifled by its focus on its own infrastructure software projects but noted that by releasing App Engine the company was encouraging a wider ecosystem of applications based on its platform.

What I didn’t discuss at the time was the potential risk of application vendors finding themselves locked-in to the App Engine platform. Of course Amazon also has this issue, the potential impact of which was …

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Has them all

A question that pops up frequently on Devshed forums is "How can I get all products that are available in Red and Green colors?" or "How can I find out which customers bought this book and that CD?", solution is simple and I'll provide an example here, it can be made more complicate at your option, but it all boils down to a where and an having condition.Say we have a table that lists all

MySQL Camp, just a week away

We are just a week away

Come join us. Details at : http://blogs.sun.com/amitsaha/entry/mysql_camp_in_bangalore_july

Link to visit: http://mysql.meetup.com/297/

PS:

MySQL camp is on http://in.sun.com  (picture from Collin's blog entry



MySQL Camp, just a week away

We are just a week away

Come join us. Details at : http://blogs.sun.com/amitsaha/entry/mysql_camp_in_bangalore_july

Link to visit: http://mysql.meetup.com/297/

PS:

MySQL camp is on http://in.sun.com  (picture from Collin's blog entry



First working revision of SIGAR information schema plugin is available

Intro

The first working version (0.4.3) of SIGAR I_S plugin is now available on Launchpad. You are welcome to download and give it a try:
bzr branch lp:~m.ch/mysql-server/sigar-plugin
As this product is still in development stage you probably don't want to install it on you production server. I'd rather suggest to play with it on some non-important MySQL server instance.
So what actually this plugin does. It uses Hyperix SIGAR library to gather and analyze operating system information. As SIGAR library is OS independent we can gather information on different unix platforms as well as on Windows family OS.
What this plugin is not. It's not a way to start or stop OS services, interrupt its work or affect it in any way.

Features

1. You don't need to install or compile SIGAR library yourself as the source files come already with SIGAR files …

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how to fix eleven bugs in mysql 5.1

my “mysql client fixes” branch on launchpad contains fixes for eleven bugs (nine of them reported on bugs.mysql.com).

don’t get too excited — these are all the lowest priority-level bugs, mostly typos in comments and documentation.

now i have to figure out the latest process for actually getting these changes into the official tree. there are different policies around how and when to push to trees since i was last doing any server development. from someone who is partially outside, it all seems very tedious and designed to make it impossible to fix anything. process gone bad.

the mysql server isn’t going to get the benefits of using a good, …

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