Monthly Archives: September 2013

Simple Formula To Count MySQL RAM Usage

Every so often people ask the question how should estimate memory consumption by MySQL Server in given configuration. What is the best value they could use in the configuration. First, we need to know that there are 2 kind of variable in MySQL which are global variable and session variable. Global variable are allocated at… Read More »

How To Install Java on Raspberry PI

First thing you have to download the Java from Oracle site []. Please choose the Linux Arm version. Currently the filename is jdk-7u21-linux-arm-sfp.tar.gz. Untar the jdk distribution (i.e. the tar file copied above) tar xvzf ~/jdk-7u21-linux-arm-sfp.tar.gz Create a java directory and move the untarred distribution to it. delete the tar file once we are done… Read More »