Recently I have been trying to determine what the impact of using MQ message persistence is on disk subsystem performance. There is alot of literature from IBM recommending ideal configurations to support MQ persistence, so I won’t turn this into a post that recommends ideal settings. What I did want to achieve though, was to get a better understanding of how MQ interacts with the disk subsystem when using message persistence, so that I could plan for capacity and make better recommendations for tuning on a production SAN environment.
Read MoreCPAN provides a great module for Perl called WWW:Mechanize. To quote CPAN:
WWW::Mechanize, or Mech for short, helps you automate interaction with a website. It supports performing a sequence of page fetches including following links and submitting forms. Each fetched page is parsed and its links and forms are extracted. A link or a form can be selected, form fields can be filled and the next page can be fetched. Mech also stores a history of the URLs you’ve visited, which can be queried and revisited.
This post details how to install the module as well as a quick example of automation that logs in to a secure website (MyThree.com.au) and extracts information (Bill Info & Data Usage) without ever having to leave your console …
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