windows 安装 hadoop 3.21 bug
https://www.cnblogs.com/alpha-cat/p/12866505.html
https://issues.apache.org/jira/browse/HDFS-14890
https://www.cnblogs.com/hang-shao/p/12860000.html
https://github.com/FahaoTang/big-data/blob/master/hadoop-hdfs-3.2.1.jar
namenode.NameNode: Failed to start namenode. java.lang.UnsupportedOperationException at java.nio.file.Files.setPosixFilePermissions(Files.java:2044) at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.clearDirectory(Storage.java:452) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:591) at org.apache.hadoop.hdfs.server.namenode.NNStorage.format(NNStorage.java:613) at org.apache.hadoop.hdfs.server.namenode.FSImage.format(FSImage.java:188) at org.apache.hadoop.hdfs.server.namenode.NameNode.format(NameNode.java:1206) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1649) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1759) 2021-08-10 14:10:43,776 INFO util.ExitUtil: Exiting with status 1: java.lang.UnsupportedOperationException