Hi, thanks for your answers. Sorry, I forgot to add it, I couldn´t run the command neither:
C:\development\tools\hadoop>%HADOOP_PREFIX%\bin\hdfs dfs -format -format: Unknown command C:\development\tools\hadoop>echo %HADOOP_PREFIX% C:\development\tools\hadoop By using –help command there is no format param. My Hadoop version: 2.4.0 (the latest version supported by mongo-hadoop). Best regards, Blanca Von: Arpit Agarwal [mailto:aagar...@hortonworks.com] Gesendet: Dienstag, 26. August 2014 21:39 An: user@hadoop.apache.org Betreff: Re: Running job issues > And the namenode does not even start: 14/08/26 12:01:09 WARN > namenode.FSNamesystem: Encountered exception loading fsimage > java.io.IOException: NameNode is not formatted. Have you formatted HDFS (step 3.4)? On Tue, Aug 26, 2014 at 3:08 AM, Blanca Hernandez <blanca.hernan...@willhaben.at<mailto:blanca.hernan...@willhaben.at>> wrote: Hi! I have just installed hadoop in my windows x64 machine.l followd carefully the instructions in https://wiki.apache.org/hadoop/Hadoop2OnWindows but in the 3.5<https://wiki.apache.org/hadoop/Hadoop2OnWindows%20but%20in%20the%203.5> and 3.6 points I have some problems I can not handle. %HADOOP_PREFIX%\sbin\start-dfs.cmd The datanode can no connect: 14/08/26 12:01:30 WARN datanode.DataNode: Problem connecting to server: 0.0.0.0/0.0.0.0:19000<http://0.0.0.0/0.0.0.0:19000> And the namenode does not even start: 14/08/26 12:01:09 WARN namenode.FSNamesystem: Encountered exception loading fsimage java.io.IOException: NameNode is not formatted. Trying to get running the mapreduce-example indicated in the pont 3.6, I get the connection exception again. Tha brings me to the http://wiki.apache.org/hadoop/ConnectionRefused page where the exception in explained. So I guess I have some misunderstandings with the configuration. I tried to find information about that and found the page http://wiki.apache.org/hadoop/HowToConfigure but is still not very clear for me. I attach my config files, the ones I modified maybe you can help me out… Many thanks!! CONFIDENTIALITY NOTICE NOTICE: This message is intended for the use of the individual or entity to which it is addressed and may contain information that is confidential, privileged and exempt from disclosure under applicable law. If the reader of this message is not the intended recipient, you are hereby notified that any printing, copying, dissemination, distribution, disclosure or forwarding of this communication is strictly prohibited. If you have received this communication in error, please contact the sender immediately and delete it from your system. Thank You.
