我最近以单集群模式将hadoop 3.1.1安装到我的计算机上。在完成hdfs site.xml、yarn site.xml、core site.xml、mapred-site.xml和hadoop-env.sh的所有配置后，不会出现任何错误
*启动全时
*停止全时
*start-dfs.sh
*启动-学习.sh
*hadoop名称节点
*hadoop名称节点-格式
但我试图执行hadoop数据节点，它给出了以下错误。
2018-12-12 14:20:16,129 WARN checker.StorageLocationChecker: Exception checking StorageLocation [DISK]file:/usr/local/hadoop_store/hdfs/datanode
EPERM: Operation not permitted
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.chmodImpl(Native Method)
at org.apache.hadoop.io.nativeio.NativeIO$POSIX.chmod(NativeIO.java:233)
at org.apache.hadoop.fs.RawLocalFileSystem.setPermission(RawLocalFileSystem.java:836)
at org.apache.hadoop.fs.ChecksumFileSystem$1.apply(ChecksumFileSystem.java:508)
at org.apache.hadoop.fs.ChecksumFileSystem$FsOperation.run(ChecksumFileSystem.java:489)
at org.apache.hadoop.fs.ChecksumFileSystem.setPermission(ChecksumFileSystem.java:511)
at org.apache.hadoop.util.DiskChecker.mkdirsWithExistsAndPermissionCheck(DiskChecker.java:234)
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$1.call(ThrottledAsyncChecker.java:142)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
2018-12-12 14:20:16,131 ERROR datanode.DataNode: Exception in secureMain
org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
at org.apache.hadoop.hdfs.server.datanode.checker.StorageLocationChecker.check(StorageLocationChecker.java:220)
at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2762)
at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2677)
at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2719)
at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2863)
at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2887)
2018-12-12 14:20:16,133 INFO util.ExitUtil: Exiting with status 1: org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
2018-12-12 14:20:16,135 INFO datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at mihiran-Inspiron-5558/127.0.1.1
为了解决这个问题，我遵循了之前的许多stackover问答。但仍无法解决
hdfs-site.xml
<configuration>
<property>
<name>dfs.replication</name>
<value>1</value>
</property>
<property>
<name>dfs.namenode.name.dir</name>
<value>file:/usr/local/hadoop_store/hdfs/namenode</value>
</property>
<property>
<name>dfs.datanode.data.dir</name>
<value>file:/usr/local/hadoop_store/hdfs/datanode</value>
</property>
<property>
<name>dfs.permissions</name>
<value>false</value>
</property>
</configuration>
这是core-site.xml 的代码
core-site.xml
<configuration>
<property>
<name>fs.default.name</name>
<value>hdfs://localhost:9000</value>
</property>
</configuration>
以下是mapred-site.xml 的代码
mapred-site.xml
<configuration>
<property>
<name>mapred.job.tracker</name>
<value>localhost:54311</value>
</property>
</configuration>
这是yarn-site.xml 的代码
yarn-site.xml
<configuration>
<property>
<name>yarn.nodemanager.aux-services</name>
<value>mapreduce_shuffle</value>
</property>
<property>
<name>yarn.nodemanager.aux- services.mapreduce.shuffle.class</name>
<value>org.apache.hadoop.mapred.ShuffleHandler</value>
</property>
</configuration>
我使用命令解决错误
sudo chown -R mihiran /usr/local/hadoop_store/hdfs/datanode