monitoring - 🧑‍💻 Funky Penguin

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monitoring

A collection of 3 posts

Lazy monitoring breaks stuff

In Outage Postmortem - July 20, 2016, we read about how a (technically complex) programming flaw brought down StackOverflow for 34 minutes. Aside for the technical description of the bug (which is interesting), what stands out to me is that the impact of the bug was so severe because the

IT Monitoring lessons learned from FCC report into 911 outage

IEEE Spectrum highlighted an FCC report into a 911 outage in April 2014, which resulted in over 11 million Americans.. or about three and half percent of the population of the United States, being at risk of not being able to reach emergency help through 911. I found the report

Fixed Cacti not displaying interfaces for HP 1810G switch

While implementing a new network for a customer, we took an existing HP 1810G 48-port switch under management. As per normal, we setup monitoring (Icinga) and graphing (Cacti), but while the switch responded to Cacti sysname polls (leading us to believe it was happy), it didn’t return any interface