After installing Hadoop on Windows7 NameNode failed to start

Question

I am installing Hadoop 2.2.0 on Windows machine. While starting the NameNode I am getting the following error:

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

You need to install Hadoop winutils to install Hadoop on windows. It is compulsory to install winutils on your Windows machine to work with Hadoop. Go through this link:

https://github.com/steveloughran/winutils

Refer to this official website to install Hadoop on Windows:

https://wiki.apache.org/hadoop/Hadoop2OnWindows