November 1, 2017
We hosted this webinar on Saturday, October 28th 2017. In this webinar we discussed the most common memory related issues with MapReduce jobs and how to […]
January 19, 2017
DataNode process killed due to Incompatible clusterIDs error This blog post will describe how to address Incompatible clusterIDs with DataNodes. 2013-04-11 16:26:15,720 FATAL org.apache.hadoop.hdfs.server.datanode.DataNode: Initialization failed […]
January 16, 2017
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! 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) 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 Some versions of Maven / eclipse will give you the below error in your pom.xml Missing artifact jdk.tools:jdk.tools:jar:1.7.0_79 It is very […]
