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Monthly Archives: December 2018
R Studio: Doing data science on my health data – Part 1
Up to seven years ago my doctor would nag me every half year that I should lose some weight. Nagging didn’t work on me that much. What did work however was competition. I wanted to become faster in a bike … Continue reading
Posted in Learning Big Data, Weird experiments
Tagged Big Data, ggplot2, health data, R Studio, Udemy
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Check your /tmp on HDFS
If you have sensitive data on your Hadoop cluster, you might want to check /tmp on HDFS once a while to see what ends up there. /tmp is used by several components. Hive for example stores its “scratch data” there. … Continue reading
Tech dossier: Elasticsearch / the ELK stack
Because tech is moving so fast, I’ve been keeping dossiers in Evernote of open source products I have to learn more of, which I’ve decided to put on my blog. My last one was about Kubernetes. This one is about … Continue reading
Posted in Tech dossier
Tagged Elastic, ElasticSearch, Kibana, Logstash, Vega, VirtualBox
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Tech dossier: Kubernetes
Because tech is moving so fast, I’ve been keeping dossiers in Evernote of open source products I have to learn more of. Like Kubernetes. This morning I suddenly thought this would be perfect for a blog.. if properly organized. My … Continue reading
Posted in Kubernetes, Tech dossier
Tagged Backup, Certified Kubernetes Administrator, CKA, etcd, Google Cloud, Kubernetes, Security, The hard way, VirtualBox
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