When I try to connect to Hadoop, I get a error as -"Connecting to Resource Manager failed".

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After installing hadoop 2.2 and trying to launch pipes example I've got the following error (the same error shows up after trying to launch hadoop jar hadoop-mapreduce-examples-2.2.0.jar wordcount someFile.txt /out):

Sep 28, 2018 in Big Data Hadoop by Neha
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Make sure you've started Yarn. Use this command to start it:

start-yarn.sh

Then use this command to verify that the Resource Manager is running:

jps

The output should look something like this:

17542 NameNode

17920 SecondaryNameNode

22064 Jps

17703 DataNode

18226 ResourceManager

18363 NodeManager

answered Sep 28, 2018 by Frankie
• 9,710 points

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