Posts Tagged ‘Bash

Whilst recently looking into usage of SSL, I needed to analyse some logs from apache to determine requests per second. Initially I wrote a quick bash script to do this, however figured it would be handy to elaborate on this, as a result I have posted a perl script on github at apache-log-stats total_requests=$(zcat b2f01_ApacheAccess.2011-12-05.gz […]

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I previously wrote about “Installing Java & MySQL – unattended/non-interactive installation”. Whilst using slack, I have been running apt-get during postinstall rather than preinstall. Files are transferred from slack after preinstall as such transferring any files that conflict with the packages configuration files, apt-get will prompt regardless of DEBIAN_FRONTEND=noninteractive. Not ideal if your trying to […]

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Vagrant is simply a wrapper around Virtualbox headless that allows for provisioning virtual machines with support for puppet, chef-solo, chef, and bash. This allows you to automate the deployment and sandboxing of development sites. Additional base box images can be found at vagrantbox.es. Installing Vagrant apt-get install -y ruby1.9.1 ruby1.9.1-dev ln -svf /usr/bin/ruby1.9.1 /etc/alternatives/ruby gem […]

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I wrote a few munin plugins to monitor memory, CPU and IO usage per process. After collecting the stats for a few days I noticed that MySQL CPU usage had a constant value of 9.1, however all other processes collected CPU usage correctly.. CPU usage proc=mysqld value=$(ps u -C $proc | awk ‘BEGIN { sum […]

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About this blog

Andrew Johnstone is a software engineer / lead developer working at Everlution Software.

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  • Multiple Ucarp on the same host | PaoloBertasi: […] http://ajohnstone.com/achives/running-several-vips-on-the-same-interface-with-ucarp-and-ha [...]
  • mohit: I am working the same on windows server 2008 and mysql version 5.1.39 ,but it is not working and i a [...]
  • Steve: Hi there... sorry that this is old, but I'm trying to use your script to check for my usage per seco [...]
  • vinodh: great. thanks . My boss wanted me to configure multiple mysql instances on same physical machine . i [...]
  • andrew.johnstone: In the example above this was in fact using spl_autoload_register. I've never debugged this properly [...]

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