NameNode：无法在 windows 7 中启动名称节点

Question

我正在尝试在 windows 机器上安装 Hadoop，中间出现以下错误。

日志

 17/11/28 16:31:48 ERROR namenode.NameNode: Failed to start namenode.
 java.lang.UnsatisfiedLinkError: org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Ljava/lang/String;I)Z
    at org.apache.hadoop.io.nativeio.NativeIO$Windows.access0(Native Method)
    at org.apache.hadoop.io.nativeio.NativeIO$Windows.access(NativeIO.java:609)
    at org.apache.hadoop.fs.FileUtil.canWrite(FileUtil.java:996)
    at org.apache.hadoop.hdfs.server.common.Storage$StorageDirectory.analyze 
 Storage(Storage.java:490)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverStorageDirs(FSImage.java:369)
    at org.apache.hadoop.hdfs.server.namenode.FSImage.recoverTransitionRead(FSImage.java:225)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFSImage(FSNamesystem.java:978)
    at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.loadFromDisk(FSNamesystem.java:685)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.loadNamesystem(NameNode.java:585)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:645)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:819)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:803)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1500)
    at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1566)

Answer 1

您似乎没有安装 Hadoop winutils 或使用本机库构建 Hadoop

Native IO is mandatory on Windows and without it you will not be able to get your installation working. You must follow all the instructions from BUILDING.txt to ensure that Native IO support is built correctly

Hadoop2 on Windows

Answer 2

我也遇到了类似的问题。我正在使用 Hadoop-2.8.1。这些步骤为我解决了错误。

从 GitHub

下载您的版本的 winutils

复制粘贴 winutils 在 <HADOOP_HOME>/bin/

还有。仔细检查 JAVA_HOME 环境是否正确设置并在 hadoop-env.cmd 文件

中引用

NameNode：无法在 windows 7 中启动名称节点

NameNode: Failed to start namenode in windows 7

windows

hadoop

hdfs

namenode