Hadoop Yarn Daemons Stop Running

StackOverflow https://stackoverflow.com/questions/20775693

  •  21-09-2022
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Question

Running start-dfs.sh and start-yarn.sh followed by jps gives the following output:

8227 ResourceManager
8328 NodeManager
7804 NameNode
8366 Jps
8077 SecondaryNameNode
7901 DataNode

If I run jps about 5 seconds later, the ouput is:

7804 NameNode
8473 Jps
8077 SecondaryNameNode
7901 DataNode

The two yarn daemons (ResourceManager and NodeManager) stop working for some reasons. Any idea as to why this may happen?

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Solution

This typically happens when there are problems starting up the services. It could be a lot of things - missing configuration, permission issues, etc.

You'll have to inspect the logs of ResourceManager and NodeManager for more details.

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