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As i am getting the following error and my node manager is down
The ResourceManager considers this NodeManager unhealthy and will not use it.NodeManager health report: ' 1/1 log-dirs are bad: /var/log/hadoop-yarn/container'.
Check out Node Manager logs and look for WARN message similar to below :
WARN org.apache.hadoop.yarn.server.nodemanager.DirectoryCollection: Directory /var/log/hadoop-yarn/container error, used space above threshold of 90.0%, removing from list of valid directories
This will give you more insights and reason why you are getting those health alerts and take corrective action.