Hadoop: …be replicated to 0 nodes instead of minReplication (=1). There are 1 datanode(s) running and no node(s) are excluded in this operation

Question

I\'m getting the following error when attempting to write to HDFS as part of my multi-threaded application

could only be replicated to 0 nodes instead of min         


        

Answer 1

Got this error as Data Node was not running. To resolve this on VM

1. Removed Name/Data Node directories
2. Re-Created the directories
3. Formatted the name node & data node(not required)hadoop namenode -format
4. Restarted the service start-dfs.sh
5. Now jps shows both Name & Data nodes and Sqoop job worked successfully