Development, Analysis And Research
by Andrew Johnstone
Posts Tagged ‘Bash’
Requests per second from Apache logs
22 Sep 2012Whilst 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=$(zcat b2f01_ApacheAccess.2011-12-05.gz [...]
- (1) Comment
- Tags: Bash, perl
I previously wrote about “Installing Java & MySQL – unattended/non-interactive installation”. Whilst using slack, I have been running apt-get during postinstall rather than preinstall. Files are transferred from slack after preinstall as such transferring any files that conflict with the packages configuration files, apt-get will prompt regardless of DEBIAN_FRONTEND=noninteractive. Not ideal if your trying to [...]
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- Tags: apt-get, Bash, non-interactive
Vagrant is simply a wrapper around Virtualbox headless that allows for provisioning virtual machines with support for puppet, chef-solo, chef, and bash. This allows you to automate the deployment and sandboxing of development sites. Additional base box images can be found at vagrantbox.es. Installing Vagrant apt-get install -y ruby1.9.1 ruby1.9.1-dev ln -svf /usr/bin/ruby1.9.1 /etc/alternatives/ruby gem [...]
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- Tags: Bash, MySQL, PHP, Slack, Virtualbox, Virtualization
Monitoring Processes with PS
In: Linux
22 May 2010I wrote a few munin plugins to monitor memory, CPU and IO usage per process. After collecting the stats for a few days I noticed that MySQL CPU usage had a constant value of 9.1, however all other processes collected CPU usage correctly.. CPU usage proc=mysqld value=$(ps u -C $proc | awk ‘BEGIN { sum [...]
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- Tags: Bash, Linux, Monitoring
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Andrew Johnstone is a software engineer / lead developer working at Everlution Software.
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- 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 [...]
- Mike: I had a similar problem I think where a random class would fail to load when others loaded just fine [...]
- John Cannon: Hey that was really needful. Thanks for sharing. I'll surely be looking for more. [...]
- Awk craziness: Processing log files
- Elastic Search Presentation
- Requests per second from Apache logs
- Hackday @ Everlution
- apt-get unattended / non-interactive installation
- PHP apache_note, Graphite & Logster for logging
- Vagrant – Automating PHP/MySQL Installation with bash/slack for continuous deployment
- PHP5.3 autoload/class_exists fail
- Selenium
- Installing Java & MySQL – unattended/non-interactive installation
