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Simple monitoring

As I already wrote about in the past I have a raspberry pi running at home. I do also have a VPS running somewhere on the interweb for an owncloud instance.

Being a sysadmin I wanted to know when my home devices become unreachable and when the owncloud instance is down. By mail in the first place if possible by sms message for free in the ideal world.

R and Graphite

R is a famous language in the statistical world. It
has a large ecosystem and today I wanted to try to do some predictions with R and
Graphite.

On the importance of idempotence.

A couple of months ago we were seeing weird behaviour with consul not knowing all it's members at a customer where we had deployed Consul for service registration as a POC
The first couple of weeks we hadn't noticed any difficulties but after a while we had the impression that the number of nodes in the cluster wasn't stable.

Obviously the first thought is that such a new tool probably isn't stable enough so it's expected behaviour , but rest asured that was not the case.

On the importance of idempodence.

A couple of months ago we were seeing weird behaviour with consul not knowing all it's members at a customer where we had deployed Consul for service registration as a POC
The first couple of weeks we hadn't noticed any difficulties but after a while we had the impression that the number of nodes in the cluster wasn't stable.

Obviously the first thought is that such a new tool probably isn't stable enough so it's expected behaviour , but rest asured that was not the case.

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Inuit, Open Source Enthusiast, Self Proclaimed Senior Junior Sysadmin
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Open Source consultant. Interests: Linux, PHP, Drupal, Ruby, Vim, Git, Sci-Fi.
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Open-Souce consultant. Sysadmin. <3 DevOps, monitoring and automation.
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Open Source consultant, web developer, hobbyist sysadmin, weeb, Inuit
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Kevin is an Open Source Consultant at Inuits.
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