This package gets a list of hadoop slave nodes using YARN API and compares it to autoscaled group nodes to identify instances that failed to register with YARN master.
pip install yarn-unreg-nodes
From source code
git clone https://github.com/seeker815/hadoop-yarn-unreg-nodes.git
pushd hadoop-yarn-unreg-nodes
python setup.py install
popd
bin/yarn_unreg_nodes --help
alternative
python -m yarn_unreg_nodes --help