Hadoop Installation Issue on Windows

Question

I installed Hadoop on windows 7 but after installing Hadoop, Namenode is not running. I guess there is some issue with hdfs-site.xml file but I’m not able to figure it out. Can anyone please help?

hdfs-site.xml

<?xml version="1.0" encoding="UTF-8"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
<configuration>
   <property>
       <name>dfs.replication</name>
       <value>1</value>
   </property>
   <property>
       <name>dfs.namenode.name.dir</name>
       <value>F:\hadoop-2.7.2\data\namenode</value>
   </property>
   <property>
       <name>dfs.datanode.data.dir</name>
     <value>F:\hadoop-2.7.2\data\datanode</value>
   </property>
</configuration>
Please check hdfs configuration.
And the error log looks like this
java.net.URISyntaxException: Illegal character in opaque part at index 2: F:\had
oop-2.7.2\data\namenode
        at java.net.URI$Parser.fail(URI.java:2829)
        at java.net.URI$Parser.checkChars(URI.java:3002)
        at java.net.URI$Parser.parse(URI.java:3039)
        at java.net.URI.<init>(URI.java:595)

Answer 1

Below is the main error you are getting because you are not using the correct syntax
ERROR common.Util: Syntax error in URI F:\hadoop-2.7.2\data\namenode.
In hdfs-site.xml you’ve specified like this:
<property>
    <name>dfs.namenode.name.dir</name>
    <value>F:\hadoop-2.7.2\data\namenode</value>
</property>

Instead of using backward slash, use the forward slashes
F:/hadoop-2.7.2/data/namenode
Alternatively make it a valid URI
file:///f:/hadoop-2.7.2/data/namenode

Comments

it resolved the issue

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Hey there! Thanks for letting me know. Glad it worked ! :-)

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This was very helpful