Author Archive

Checking for rogue Apache modules

magnifying_glass April 3rd, 2013

An Icinga check to detect rogue Apache modules.

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LOADays

loadays March 1st, 2013

We’re an official Gold Sponsor of LOADays! We’ll also have presence there, so if you’re attending, do stop by and say hi!

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Debugging puppet queueing

puppet December 9th, 2011

Today we ran into a problem where the data put in ActiveMQ by the puppetmaster seemed corrupted in some way. When running the puppet queue daemon on the foreground (with –debug –verbose –no-daemonize), we noticed messages like these: info: Loaded queued catalog in 22.16 seconds debug: Searched for resources in 0.31 seconds err: Could not […]

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Check SSL certificates

ssl_checks August 24th, 2011

This post is mostly a collection of commands that can help in juggling around SSL certificates and associated files. Check SSL certificates and make sure they are what you think they are. Especially when things do not go as expected, these commands are handy to have around.

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Another job opening

we're hiring June 7th, 2011

There’s another job opening at Kumina!

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Happy customers

May 4th, 2011

Always nice to get a token of appreciation!

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Cassandra: java.io.IOError: java.io.IOException: Map failed

Cassandra-Logo April 20th, 2011

How we solved a problem with the machine hitting max mmap count.

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Published our repositories

puppet April 15th, 2011

We published our internally developed puppet modules.

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Kumina designs, builds, operates and supports Kubernetes solutions that help companies thrive online. As Certified Kubernetes Service Partner, we know how to build real solutions.