https://hadoop.apache.org/docs/stable/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/apidocs/org/apache/hadoop/yarn/server/nodemanager/recovery/NMStateStoreService.RecoveredNMTokensState.html
NMStateStoreService.RecoveredNMTokensState (Apache Hadoop YARN NodeManager 3.3.5 API)
apache hadoopyarnapi