in DevOps

Four Short Links, Oct 14, 2009

  • Larry Ellison hates cloud computing – funny clip of Ellison lambasting the idea of clouds. Yes, really, clouds have been around for over a decade, we just didn’t know it (or realize it).
  • Dynamic general and slow query log before MySQL 5.1 – This is an interesting way of handling the slow and general query logs on pre-5.1 MySQL instances. We don’t need this on slow, but there’s been occasions that we’ve needed the general query log, but enabling it and disabling it requires a full restart of the service on 5.0 and earlier. You still take a performance hit because you’re always logging, but I would think it to be fairly minimized on modern fast hardware.
  • Watch out for your CRON jobs – Over at the MySQL Performance Blog, Peter Zaitsev gives some good guidelines on things to pay attention to when designing your cron jobs. Not just for databases. I like the idea of keeping historical run time information so you can see when large jumps in run time occur (which could be a problem.
  • How Did Danger Not Backup Its Servers? How Did Microsoft Allow Such A Failure? – Oy. A few days late on this one, but really? Total data loss from an upgrade. Scary. This is a reminder: we all test our backups, but how many of us test our restores?
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    Travis Campbell
    Staff Systems Engineer at ghostar
    Travis Campbell is a seasoned Linux Systems Engineer with nearly two decades of experience, ranging from dozens to tens of thousands of systems in the semiconductor industry, higher education, and high volume sites on the web. His current focus is on High Performance Computing, Big Data environments, and large scale web architectures.