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Displaying posts with tag: howto (reset)
Settingup DBT-2

DBT-2 is a TPC-C like OLTP benchmark, and very popular amongst many MySQL users. It is used by MySQL QA team to test the stability and performance before release. However, steps to setup DBT-2 is a little bit messy, and its README files include some dummy information. So I introduce you these steps below:

1. Download it!

You can download the source code from here: http://osdldbt.sourceforge.net/

2. Required packages

The following perl packages are required to build DBT-2. Unfortunately, configure script doesn't complain even if they are missing. Install them using, e.g. CPAN.

shell> sudo cpan Statistics::Descriptive
shell> sudo cpan Test::Parser
shell> sudo cpan Test::Reporter

If you want to make a graph from the output, you have to install gnuplot in advance. e.g. Ubuntu …

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OpenSolaris, Bazaar and SSH

Just a small tip for using Bazaar on OpenSolaris: set the BZR_SSH environment variable to openssh if you don't have the Python module Paramiko installed.
For example, in your ~/.bashrc:


export BZR_SSH=openssh


Could be useful if you're pulling MySQL stuff from Launchpad and use (Open)Solaris. Could also be useful on other Unix-like operating systems when the default is missing (Bazaar uses Paramiko as default).

Blueprints Wiki - Best Practices on ZFS, MySQL, Hadoop, and much more

I just bumped into the Sun BluePrints Wiki and I think it is worth a visit. It is a companion to the BluePrints Blog and part of the move towards Self-Published Content at Sun, which increases agility and responsiveness to user's needs.

The Recent Content page lists chronologically the latest changes. The more recent entries are created in Wiki format, while the earlier ones are PDF attachments.

Some of the documents that caught my attention include:

• …

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How to compile a C++ MySQL UDF on OSX 10.4

Recently, I came upon Baron Swartz's (xaprb's) great now_usec UDF:
http://www.xaprb.com/blog/2007/10/30/how-i-built-the-now_usec-udf-for-mysql/


I use an Intel Macbook Pro for my primary development environment. GCC on OS X has some interesting quirks. Usually to compile a UDF on GNU/Linux I use the following command line:

gcc -fPIC -Wall -I/usr/include/mysql -shared -o udf_now_usec.so udf_now_usec.cc


When I tried to execute the above on my OS X box, I got some errors:

$ gcc -fPIC -Wall -I../include -shared -o udf_now_usec.so udf_now_usec.cc
i686-apple-darwin8-gcc-4.0.1: unrecognized option '-shared'
/usr/bin/ld: Undefined symbols:
_main
___gxx_personality_v0</b>
collect2: ld returned 1 exit status



The …

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