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

Post a Comment

Popular posts from this blog

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
Post a Comment
Read more

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...
5 comments
Read more

org.apache.hadoop.yarn.exceptions.YarnException: Unauthorized request to start container.

Recently installed the latest cloudera hadoop. First issue I faced while working with hive. Diagnostic Messages for this Task: Container launch failed for container_1406173012885_0009_01_000021 : org.apache.hadoop.yarn.exceptions.YarnException: Unauthorized request to start container . This token is expired. current time is 1406254943000 found 1406254938244     at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)     at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)     at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)     at java.lang.reflect.Constructor.newInstance(Constructor.java:526)     at org.apache.hadoop.yarn.api.records.impl.pb.SerializedExceptionPBImpl.instantiateException(SerializedExceptionPBImpl.java:152)     at org.apache.hadoop.yarn.api.records.impl.pb.Serial...
1 comment
Read more