Skip to main content

Spark: Next big thing in Big Data?

Spark indeed has gained a lot of popularity. Its mailing list one of the most active in all of the big data projects(It shows lot of people are banging it). As one of the big data enthusiasts, I'm going to dig in ;-)



   Watch out this space for benchmarking + optimization factors in spark. Lets play spark

Comments

Popular posts from this blog

Common issues on Shark with CDH5-beta2

Issues on Shark with CDH5-beta2 1. IncompatibleClassChangeError: Implementing class Exception in thread "main" java.lang.IncompatibleClassChangeError: Implementing class at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:800) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) at java.net.URLClassLoader.access$100(URLClassLoader.java:71) at java.net.URLClassLoader$1.run(URLClassLoader.java:361) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.ClassLoader.defineC...

Upgrading nodejs in ubuntu 14.04

My machine has 5.x installed and had lot of trouble updating it to 8.x. Below are the steps I followed to upgrade nodejs from 5.x to 8.x #add the new source list sudo apt-key adv --keyserver keyserver.ubuntu.com --recv 68576280  sudo apt-add-repository "deb https://deb.nodesource.com/node_8.x $(lsb_release -sc) main" sudo apt-get update #Remove the previous installation sudo apt-get purge nodejs npm  #Verify if proper version is going to be installed apt-cache policy <package> #Install new version sudo apt-get install -y nodejs

rWordCloud - An htmlwidget interface for D3 word cloud

With htmlwidget, its become easy to bind d3 scripts to R. rWordCloud is one such package. To install rWordCloud require(devtools) install_github('adymimos/rWordCloud') Two main functions in rWordClouds are d3TextCloud - this function takes strings as input, and performs word count. Before word count, it does stemming, and stop word removal. content <- c('R is a programming language and software environment for statistical computing and graphics open source','The R language is widely used among statisticians and data miners for developing statistical software and data analysis','Polls, surveys of data miners,and studies of scholarly literature databases show that R popularity has increased substantially in recent years','languages programming study open source, analysis') label <- c('a1','a2','a3','a4') d3TextCloud(content = content, label = label ) d3Cloud - Function accepts word and it...