Hadoop start-all.cmd 命令：datanode 关闭

Question

我正在尝试在我的 Windows 10 中安装 hadoop

参考：https://github.com/MuhammadBilalYar/Hadoop-On-Window/wiki/Step-by-step-Hadoop-2.8.0-installation-on-Window-10

Hadoop start-all.cmd命令成功启动namenode、resourceManager和nodeManager，但datanode未启动

错误::

checker.StorageLocationChecker: Exception checking StorageLocation [DISK]file:/C:/hadoop-3.1.1/data/datanode
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$POSIX.getStat(NativeIO.java:455)
        at org.apache.hadoop.fs.RawLocalFileSystem$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$1.call(ThrottledAsyncChecker.java:142)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
2018-12-28 11:19:03,023 ERROR datanode.DataNode: Exception in secureMain
org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
        at org.apache.hadoop.hdfs.server.datanode.checker.StorageLocationChecker.check(StorageLocationChecker.java:220)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.makeInstance(DataNode.java:2762)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.instantiateDataNode(DataNode.java:2677)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.createDataNode(DataNode.java:2719)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.secureMain(DataNode.java:2863)
        at org.apache.hadoop.hdfs.server.datanode.DataNode.main(DataNode.java:2887)
2018-12-28 11:19:03,031 INFO util.ExitUtil: Exiting with status 1: org.apache.hadoop.util.DiskChecker$DiskErrorException: Too many failed volumes - current valid volumes: 0, volumes configured: 1, volumes failed: 1, volume failures tolerated: 0
2018-12-28 11:19:03,079 INFO datanode.DataNode: SHUTDOWN_MSG:
/************************************************************
SHUTDOWN_MSG: Shutting down DataNode at BHARTI/192.168.2.161
************************************************************/

Answer 1

我成功安装了hadoop 2.8.0从

参考：https://github.com/MuhammadBilalYar/Hadoop-On-Window/wiki/Step-by-step-Hadoop-2.8.0-installation-on-Window-10

Answer 2

我安装了hadoop 2.8.0

参考：https：Windows 上的 Hadoop

更改 xml 文件或从站点复制该文件时要小心，站点的 etc 文件仍然需要更改。

我遇到了同样的错误，然后我发现我没有在 hdfs-site.xml 文件中为 datanode 和 namenode 提供正确的路径值，更正后它工作正常

Answer 3

我正在发布对我有用的内容。 在etc/hadoop/core-site.xml中保留以下配置

<configuration>
<property>
    <name>fs.defaultFS</name>
    <value>hdfs://localhost:9000</value>
</property>

在etc/hadoop/hdfs-site.xml中保留以下配置

    <configuration>
  <property>
        <name>dfs.replication</name>
        <value>1</value>
    </property>
<property> 
<name>dfs.namenode.name.dir</name> 
<value>file:///C:/hadoop-3.2.2/data/namenode</value> //Your path to namenode may be different 
</property> 

<property> 
<name>dfs.datanode.data.dir</name> 
<value>datanode</value>
</property>
</configuration>

现在在 bin 目录中运行命令

hdfs namenode -format

，并在 sbin 目录中运行

start-dfs.cmd

。如果没有错误，Datanode 现在应该运行。

如果无法上传文件，则需要更改权限。例如，假设您使用命令

hdfs dfs -mkdir user

创建了一个名为 user 的目录。默认情况下，权限为“drwxr-xr-x”。您需要使用命令

hdfs dfs -chmod 777 /user

更改它。权限将设置为“drwxrwxrwx”。现在您可以上传和下载文件了。

Answer 4

我正在尝试在Windows 7上安装hadoop2.10.2

参考：- https://medium.com/analytics-vidhya/hadoop-how-to-install-in-5-steps-in-windows-10-61b0e67342f8

运行 start-all.cmd 命令时，其余所有都在工作，但 NodeManager 关闭了