Troubleshooting – Hadoop In Real World

Troubleshooting

January 16, 2017

FSNamesystem initialization failed

FSNamesystem initialization failed FSNamesystem initialization failed is a common error Hadoop users gets especially if there are trying to set up of a Hadoop cluster for […]
January 12, 2017

Hadoop safemode recovery – taking too long!

Hadoop safemode recovery – taking too long! Any time NameNode is restarted or started, NameNode first goes into maintenance state called Safe Mode. When NameNode is […]
January 9, 2017

There are 0 datanode(s) running and no node(s)

There are 0 datanode(s) running and no node(s) You are trying to write a file to HDFS and this is what you see in your datanode […]
June 23, 2016

Missing Artifact JDK Tools Jar

Missing Artifact JDK Tools Jar Some versions of Maven / eclipse will give you the below error in your pom.xml [crayon-587e3325d8984990650493/] It is very easy to […]