Archivo de la categoría: Varios

Python – Parte III

En la última parte de este tutorial de Pandas, procederemos a graficar nuestros resultados. Para esto, necesitamos instalar la librería matplotlib Instalación Instrucciones básicas Y, para comenzar a utilizarla, debemos importarla en nuestro programa. Ejercicio: ¿Cuántos superhéroes pertenecen por cada … Sigue leyendo

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Crawling and Parsing with Java

Yes, another java crawler/parser! But, it offers something different that others: it imitates the DOM with OO, in order to parse content. And of course, you could do it «on-line» or by using a raw file. So, make some soup and … Sigue leyendo

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Finding names on a raw text

Sometimes is difficult to find out names on a text. Maybe the most naïve way is to get all the words that starts with a capital letter and that’s it! But, it you check on this paragraph you could find … Sigue leyendo

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Hadoop can’t replicate to nodes

«org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException as:aavendan cause:java.io.IOException: File /usr/local/hadoop/tmp/hadoop-aavendan/mapred/system/jobtracker.info could only be replicated to 0 nodes, instead of 1» This exception was thrown twice during my tests, looks weird (because I´m working in a local node, so no reason!) After looking for around … Sigue leyendo

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IPC::Run for OSx

Maybe a little bit tricky, but I have some advances on e2e testing for Pig: installing ipc::run module for perl! It took me half day, but it was quite instructive. Let’s start by installing xcode «developer tools» for Mac, according … Sigue leyendo

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