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From YIMEN YIMGA Gael <gael.yimen-yi...@sgcib.com>
Subject Error and problem when running a hadoop job
Date Tue, 09 Sep 2014 13:47:40 GMT
Hello Dear hadoopers,

I hope you are doing well.

I tried to run WordCount.jar file to experience running hadoop jobs. After launching the program
as shown in the screenshot below, I have the message in the screenshot.
The job tries to connect to the datanode. But failed after 10 attempts, I got the error in
the second screenshot.
After that, I first stop all the Hadoop deamons, second format the dfs, third re-launch Hadoop
deamons, and I notice using the JPS command that DATANODE is not running.
I then run the datanode alone with the command bin/hadoop -deamon.sh  start datanode as shown
in the third screenshot, but the datanode is still not up and running.

Could someone advice in this case, please ?

Standing by for your habitual support.

Thank in advance.




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