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Discussion in 'Big Data and Analytics' started by Sidhant_1, Aug 6, 2016.
jps command not showing datanode running
You need to do something like this:
bin/stop-all.sh (or stop-dfs.sh and stop-yarn.sh in the 2.x serie)
rm -Rf /app/tmp/hadoop-your-username/*
bin/hadoop namenode -format (or hdfs in the 2.x serie)
the solution was taken from: http://pages.cs.brandeis.edu/~cs147a/lab/hadoop-troubleshooting/. Basically it consists in restarting from scratch, so make sure you won't loose data by formating the hdfs.