************************************************************/
2019-04-04 09:44:42,114 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: registered UNIX signal handlers for [TERM, HUP, INT]
2019-04-04 09:44:46,654 INFO org.apache.hadoop.hdfs.server.datanode.checker.ThrottledAsyncChecker: Scheduling a check for [DISK]file:/opt/hdfs/data
2019-04-04 09:44:47,320 WARN org.apache.hadoop.hdfs.server.datanode.checker.StorageLocationChecker: Exception checking StorageLocation [DISK]file:/opt/hdfs/data
java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$POSIX.stat(Ljava/lang/String;)Lorg/apache/hadoop/io/nativeio/NativeIO$POSIX$Stat;
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.stat(Native Method)
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.getStat(NativeIO.java:451)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfoByNativeIO(RawLocalFileSystem.java:796)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.loadPermissionInfo(RawLocalFileSystem.java:710)
at org.apache.hadoop.fs.RawLocalFileSystem$DeprecatedRawLocalFileStatus.getPermission(RawLocalFileSystem.java:678)
at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:233)
at org.apache.hadoop.util.DiskChecker.checkDirInternal(DiskChecker.java:141)
at org.apache.hadoop.util.DiskChecker.checkDir(DiskChecker.java:116)
at org.apache.hadoop.hdfs.server.datanode.StorageLocation.check(StorageLocation.java:239)
at org.apache.hadoop.hdfs.server.datanode.StorageLocation.check(StorageLocation.java:52)
at org.apache.hadoop.hdfs.server.datanode.checker.ThrottledAsyncChecker$1.call(ThrottledAsyncChecker.java:142)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:748)
2019-04-04 09:44:47,379 ERROR org.apache.hadoop.hdfs.server.datanode.DataNode: Exception in secureMain
org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
at org.apache.hadoop.hdfs.server.datanode.checker.StorageLocationChecker.check(StorageLocationChecker.java:231)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2776)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2691)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2733)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2877)
at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2901)
2019-04-04 09:44:47,499 INFO org.apache.hadoop.util.ExitUtil: Exiting with status 1: org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
2019-04-04 09:44:47,659 INFO org.apache.hadoop.hdfs.server.datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at master/192.168.236.128
根本问题在哪里呢？是磁盘的问题吗，还有在网上看到有人用chown解决，我看了/opt/hdfs/下面都是归属于hadoop:hadoop。
权限对的话看看你的磁盘空间（或者目录的空间）是不是不足了？
实在不行改变一下你data数据存放目录
要根据配置文件检查，可能是磁盘坏了