I Don’t Think This Means What You Think It Means: Red Herrings in OpenStack
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OpenStack’s complexity comes with operational challenges. And in situations where OpenStack misbehaves, it is frequently non-trivial to find the actual cause of an issue. This talk includes several examples of red herrings in OpenStack, and suggestions for spotting and avoiding them.
Talk (>30-45 minutes)
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When working with OpenStack, you deal with an environment that is inherently complex. As with all complex environments, things sometimes go wrong or behave unexpectedly. And when that happens, your immediate goal is to locate, pinpoint, and then troubleshoot the issue.
And then, sometimes, you go down the dead-wrong path, and end up chasing a red herring for some time, before you find the real problem. This talk contains examples of such red herrings, enabling you to recognize and avoid them.
This talk is both for those who run an OpenStack cloud, and those who consume its functionality as a service. It talks about both red herrings in OpenStack operations, and red herrings in operating applications on OpenStack.
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I’ve been working on OpenStack since 2012, have consulted on lots of private and public cloud deployments using OpenStack, and I work for the operator of a multi-region global OpenStack Cloud. “I've seen things you people wouldn't believe. Attack ships on fire off the shoulder of Orion...”
In addition to what I have seen, others have seen other things, which is why I am crowdsourcing the content of this talk. That being so, the talk proposal is public, and I am asking people on Twitter to send me their stories, which I will add to and mix with my own, with due attribution.
Just to give one example of what I would like to cover, see this article on my web site, which talks about how you can run into what looks like a quota issue in Neutron, but whose cause is in fact buried deep in RFC 5798.