Memory

Running a devstack virtual machine with limited memory

Ronald Bradford
April 4, 2016

If you have a system with only 4GB of RAM, you need to assign at least 2.5GB (2560M) to a virtual machine to install devstack . Even with this limited RAM there are times the devstack installation will fail.

Databases MySQL

More on understanding sort_buffer_size

Ronald Bradford
May 10, 2010

There have been a few posts by Sheeri and Baron today on the MySQL sort_buffer_size variable. I wanted to add some more information about this buffer, what is impacted when it is changed, and what to do about it?