A data science toolkit inside a docker image, build it once, run everywhere

If you never heard about Jupyter Notebook, I highly recommend you to check it out. It have been my primary platform to build reports and data driven case studies. On this post I’d like to show how I create a simple and isolated environment with a Bash script and Docker to run JupyterLab. Recently Jupyter Notebook received a major overhauling and become JupyterLab - currently in beta, but the new platform looks fresh and very powerful. Continue Reading »

Instalando Datastax Analytics (Cassandra y Spark) con Azure Templates

La última semana tuve la oportunidad de contar la experiencia de Socialmetrix instalando y configurando clusters de Datastax Analytics en Azure. Datastax brinda una solución comercial en un bundle, conteniendo Cassandra, Spark y Solr integrados. Las charlas se dieron en Argentina Big Data Meetup. Hosted by Jampp y el Nardoz Meetup. Hosted by Medallia

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Which is the best tool for copying a large directory tree locally?

Recently we had to move a full Cassandra backup to another cluster of machines (another Datacenter on Cassandra’s jargon). Although it can be achieved using DC replication we opted for a more conservative approach and not change production configurations neither increase its load due data streaming. This post is quick comparison to find out which tool would perform better for copying a large directory tree locally. The Data One of our Cassandra’s clusters contains 12 nodes, each node has 532Gb of data distributed among 1,753,200 files (the /var/lib/cassandra folder). Continue Reading »