Dear Sir/Madam
  I'm very new to hadoop. I'm trying to install hadoop on my computer. I
followed a weblink and try to install it. I want to install hadoop on my
single node cluster.
i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed
java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are
following

1: Make a group hadoop and a user hadoop with home directory
in hadoop directory i have a directory called projects and download
hadoop binary there than extract them there;
i configured the ssh also.

than i made changes to some file which are following. i'm attaching them
with this male please check them .
1: hadoop_env_sh
2:core-site.xml
3mapreduce-site.xml
4 hdfs-site. xml
5 hadoop's usre .bashrc
6 hadoop'user .profile

  After making changes to these fie ,I just enter the hadoop account and
enter the  few command following thing happen :

hadoop@ws40-man-lin:~$ echo $HADOOP_HOME
/home/hadoop/project/hadoop-0.20.0
hadoop@ws40-man-lin:~$ hadoop namenode -format
hadoop: command not found
hadoop@ws40-man-lin:~$ namenode -format
namenode: command not found
hadoop@ws40-man-lin:~$

now I'm completely stuck i don't know what to do? please help me as
there is no more help around the net.
i' m attaching the files also which i changed can u tell me the exact
configuration which i should use to install hadoop.

If you are interested in a quick start hadoop and don't mind if hbase is included take a look at the dashboard application at www.habermaas.com  It is a free packaged hadoop setup.  Just unzip it and run it.

Bill

-----Original Message-----
From: Manish Yadav [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 02, 2011 4:00 AM
To: [EMAIL PROTECTED]
Subject: hadoop installation problem(single-node)

Dear Sir/Madam
  I'm very new to hadoop. I'm trying to install hadoop on my computer. I followed a weblink and try to install it. I want to install hadoop on my single node cluster.
i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are following

1: Make a group hadoop and a user hadoop with home directory in hadoop directory i have a directory called projects and download hadoop binary there than extract them there; i configured the ssh also.

than i made changes to some file which are following. i'm attaching them with this male please check them .
1: hadoop_env_sh
2:core-site.xml
3mapreduce-site.xml
4 hdfs-site. xml
5 hadoop's usre .bashrc
6 hadoop'user .profile

  After making changes to these fie ,I just enter the hadoop account and enter the  few command following thing happen :

hadoop@ws40-man-lin:~$ echo $HADOOP_HOME /home/hadoop/project/hadoop-0.20.0
hadoop@ws40-man-lin:~$ hadoop namenode -format
hadoop: command not found
hadoop@ws40-man-lin:~$ namenode -format
namenode: command not found
hadoop@ws40-man-lin:~$

now I'm completely stuck i don't know what to do? please help me as there is no more help around the net.
i' m attaching the files also which i changed can u tell me the exact configuration which i should use to install hadoop.

hey Manish,

Are u giving the commands in the Hadoop_home directory ? if yes please
give "bin/hadoop namenode -format" dont forget to append "bin/" before
ur commands because all the scripts reside in the bin directory.

Matthew

On Wed, Mar 2, 2011 at 2:29 PM, Manish Yadav <[EMAIL PROTECTED]> wrote:
> Dear Sir/Madam
>  I'm very new to hadoop. I'm trying to install hadoop on my computer. I
> followed a weblink and try to install it. I want to install hadoop on my
> single node cluster.
> i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed
> java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are
> following
>
> 1: Make a group hadoop and a user hadoop with home directory
> in hadoop directory i have a directory called projects and download hadoop
> binary there than extract them there;
> i configured the ssh also.
>
> than i made changes to some file which are following. i'm attaching them
> with this male please check them .
> 1: hadoop_env_sh
> 2:core-site.xml
> 3mapreduce-site.xml
> 4 hdfs-site. xml
> 5 hadoop's usre .bashrc
> 6 hadoop'user .profile
>
>  After making changes to these fie ,I just enter the hadoop account and
> enter the  few command following thing happen :
>
> hadoop@ws40-man-lin:~$ echo $HADOOP_HOME
> /home/hadoop/project/hadoop-0.20.0
> hadoop@ws40-man-lin:~$ hadoop namenode -format
> hadoop: command not found
> hadoop@ws40-man-lin:~$ namenode -format
> namenode: command not found
> hadoop@ws40-man-lin:~$
>
> now I'm completely stuck i don't know what to do? please help me as there is
> no more help around the net.
> i' m attaching the files also which i changed can u tell me the exact
> configuration which i should use to install hadoop.
>
>
>

The instructions at
http://hadoop.apache.org/common/docs/r0.20.2/quickstart.html should be
what you need.

Cheers,
Tom

On Wed, Mar 2, 2011 at 12:59 AM, Manish Yadav <[EMAIL PROTECTED]> wrote:
> Dear Sir/Madam
>  I'm very new to hadoop. I'm trying to install hadoop on my computer. I
> followed a weblink and try to install it. I want to install hadoop on my
> single node cluster.
> i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed
> java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are
> following
>
> 1: Make a group hadoop and a user hadoop with home directory
> in hadoop directory i have a directory called projects and download hadoop
> binary there than extract them there;
> i configured the ssh also.
>
> than i made changes to some file which are following. i'm attaching them
> with this male please check them .
> 1: hadoop_env_sh
> 2:core-site.xml
> 3mapreduce-site.xml
> 4 hdfs-site. xml
> 5 hadoop's usre .bashrc
> 6 hadoop'user .profile
>
>  After making changes to these fie ,I just enter the hadoop account and
> enter the  few command following thing happen :
>
> hadoop@ws40-man-lin:~$ echo $HADOOP_HOME
> /home/hadoop/project/hadoop-0.20.0
> hadoop@ws40-man-lin:~$ hadoop namenode -format
> hadoop: command not found
> hadoop@ws40-man-lin:~$ namenode -format
> namenode: command not found
> hadoop@ws40-man-lin:~$
>
> now I'm completely stuck i don't know what to do? please help me as there is
> no more help around the net.
> i' m attaching the files also which i changed can u tell me the exact
> configuration which i should use to install hadoop.
>
>
>

Matthew
thanks for the help now the command is working but I got the  following
errors .Will u help me to solve these error
i"m giving you the error list
i just use the command
hadoop@ws40-man-lin:~/project/hadoop-0.20.0$ bin/hadoop namenode -format
and i get following result
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/hdfs/server/namenode/NameNode
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.hdfs.server.namenode.NameNode
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class:
org.apache.hadoop.hdfs.server.namenode.NameNode.  Program will exit.
now what i'm doing wrong

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thanks for the help now the command is working but I got the  following
errors .Will u help me to solve these error
i"m giving you the error list which i faced in installing hadoop on single
node cluster all the configuration files are attached to the earlier post
i just use the command
hadoop@ws40-man-lin:~/project/hadoop-0.20.0$ bin/hadoop namenode -format
and i get following result
Exception in thread "main" java.lang.NoClassDefFoundError:
org/apache/hadoop/hdfs/server/namenode/NameNode
Caused by: java.lang.ClassNotFoundException:
org.apache.hadoop.hdfs.server.namenode.NameNode
at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
Could not find the main class:
org.apache.hadoop.hdfs.server.namenode.NameNode.  Program will exit.
now what i'm doing wrong
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Hey Manish,

I am not very sure if you have got your configurations correct
including the javapath. Can u try re-installing hadoop following the
guidelines given in the following link <step by step>. That would take
care of any glitches possible.

http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/

Thanks,
Matthew

On Thu, Mar 3, 2011 at 10:42 AM, manish.yadav <[EMAIL PROTECTED]> wrote:
>
> thanks for the help now the command is working but I got the  following
> errors .Will u help me to solve these error
> i"m giving you the error list which i faced in installing hadoop on single
> node cluster all the configuration files are attached to the earlier post
> i just use the command
> hadoop@ws40-man-lin:~/project/hadoop-0.20.0$ bin/hadoop namenode -format
> and i get following result
> Exception in thread "main" java.lang.NoClassDefFoundError:
> org/apache/hadoop/hdfs/server/namenode/NameNode
> Caused by: java.lang.ClassNotFoundException:
> org.apache.hadoop.hdfs.server.namenode.NameNode
>        at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>        at java.security.AccessController.doPrivileged(Native Method)
>        at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:307)
>        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>        at java.lang.ClassLoader.loadClass(ClassLoader.java:248)
> Could not find the main class:
> org.apache.hadoop.hdfs.server.namenode.NameNode.  Program will exit.
> now what i'm doing wrong
>
>
>
> --
> View this message in context: http://lucene.472066.n3.nabble.com/hadoop-installation-problem-single-node-tp2613742p2623014.html
> Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
>

hi  thanx for replying . i already attached the configuration files in my
earlier post please check them and tell me what I'm doing wrong

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Try
$HADOOP_HOME/bin/hadoop namenode -format

or maybe consider
export PATH=$HADOOP_HOME/bin:$PATH

Regards,
Tanping
-----Original Message-----
From: Manish Yadav [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, March 02, 2011 1:00 AM
To: [EMAIL PROTECTED]
Subject: hadoop installation problem(single-node)

Dear Sir/Madam
  I'm very new to hadoop. I'm trying to install hadoop on my computer. I followed a weblink and try to install it. I want to install hadoop on my single node cluster.
i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are following

1: Make a group hadoop and a user hadoop with home directory in hadoop directory i have a directory called projects and download hadoop binary there than extract them there; i configured the ssh also.

than i made changes to some file which are following. i'm attaching them with this male please check them .
1: hadoop_env_sh
2:core-site.xml
3mapreduce-site.xml
4 hdfs-site. xml
5 hadoop's usre .bashrc
6 hadoop'user .profile

  After making changes to these fie ,I just enter the hadoop account and enter the  few command following thing happen :

hadoop@ws40-man-lin:~$ echo $HADOOP_HOME /home/hadoop/project/hadoop-0.20.0
hadoop@ws40-man-lin:~$ hadoop namenode -format
hadoop: command not found
hadoop@ws40-man-lin:~$ namenode -format
namenode: command not found
hadoop@ws40-man-lin:~$

now I'm completely stuck i don't know what to do? please help me as there is no more help around the net.
i' m attaching the files also which i changed can u tell me the exact configuration which i should use to install hadoop.

Are you configure your ssh service?

2011/3/5 Tanping Wang <[EMAIL PROTECTED]>

> Try
> $HADOOP_HOME/bin/hadoop namenode -format
>
> or maybe consider
> export PATH=$HADOOP_HOME/bin:$PATH
>
> Regards,
> Tanping
> -----Original Message-----
> From: Manish Yadav [mailto:[EMAIL PROTECTED]]
> Sent: Wednesday, March 02, 2011 1:00 AM
> To: [EMAIL PROTECTED]
> Subject: hadoop installation problem(single-node)
>
> Dear Sir/Madam
>  I'm very new to hadoop. I'm trying to install hadoop on my computer. I
> followed a weblink and try to install it. I want to install hadoop on my
> single node cluster.
> i 'm using Ubuntu 10.04 64-bit as my operating system . I have installed
> java in /usr/java/jdk1.6.0_24. the step i take to install hadoop are
> following
>
> 1: Make a group hadoop and a user hadoop with home directory in hadoop
> directory i have a directory called projects and download hadoop binary
> there than extract them there; i configured the ssh also.
>
> than i made changes to some file which are following. i'm attaching them
> with this male please check them .
> 1: hadoop_env_sh
> 2:core-site.xml
> 3mapreduce-site.xml
> 4 hdfs-site. xml
> 5 hadoop's usre .bashrc
> 6 hadoop'user .profile
>
>  After making changes to these fie ,I just enter the hadoop account and
> enter the  few command following thing happen :
>
> hadoop@ws40-man-lin:~$ echo $HADOOP_HOME
> /home/hadoop/project/hadoop-0.20.0
> hadoop@ws40-man-lin:~$ hadoop namenode -format
> hadoop: command not found
> hadoop@ws40-man-lin:~$ namenode -format
> namenode: command not found
> hadoop@ws40-man-lin:~$
>
> now I'm completely stuck i don't know what to do? please help me as there
> is no more help around the net.
> i' m attaching the files also which i changed can u tell me the exact
> configuration which i should use to install hadoop.
>
>
>

sorry for responding late. Thanks for ur help  I tried your command but the
result is same can u tell me what should i do

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hi everybody
 Thanks for your help. I configured the hadoop on single node but there is a
problem which is
every time I issue the command bin/start-all .sh ,Its always ask me for
password.
Here  are the command and result of what I'm doing:

hadoop@ws40-man-lin:~/project/hadoop-0.20.0$ bin/start-all.sh
starting namenode, logging to
/var/log/hadoop/hadoop-hadoop-namenode-ws40-man-lin.out
hadoop@localhost's password:
localhost: starting datanode, logging to
/var/log/hadoop/hadoop-hadoop-datanode-ws40-man-lin.out
hadoop@localhost's password:
localhost: starting secondarynamenode, logging to
/var/log/hadoop/hadoop-hadoop-secondarynamenode-ws40-man-lin.out
starting jobtracker, logging to
/var/log/hadoop/hadoop-hadoop-jobtracker-ws40-man-lin.out
hadoop@localhost's password:
localhost: starting tasktracker, logging to
/var/log/hadoop/hadoop-hadoop-tasktracker-ws40-man-lin.out

 can anyone tell me the way that i don't have to issue the password again
and again ?
can anyone tell me the way that all the process or hadoop scripts start
automatically when i  turn on my  machine means i don't want to issue
command bin/start-all.sh every time when  I reboot my computer?

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It's because you have not configured password-free ssh. The master node
should be able to ssh without password into all slaves. Read the ssh access
section here:
http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-multi-node-cluster/

On Tue, Mar 8, 2011 at 9:46 AM, manish.yadav <[EMAIL PROTECTED]>wrote:

> hi everybody
>  Thanks for your help. I configured the hadoop on single node but there is
> a
> problem which is
> every time I issue the command bin/start-all .sh ,Its always ask me for
> password.
> Here  are the command and result of what I'm doing:
>
> hadoop@ws40-man-lin:~/project/hadoop-0.20.0$ bin/start-all.sh
> starting namenode, logging to
> /var/log/hadoop/hadoop-hadoop-namenode-ws40-man-lin.out
> hadoop@localhost's password:
> localhost: starting datanode, logging to
> /var/log/hadoop/hadoop-hadoop-datanode-ws40-man-lin.out
> hadoop@localhost's password:
> localhost: starting secondarynamenode, logging to
> /var/log/hadoop/hadoop-hadoop-secondarynamenode-ws40-man-lin.out
> starting jobtracker, logging to
> /var/log/hadoop/hadoop-hadoop-jobtracker-ws40-man-lin.out
> hadoop@localhost's password:
> localhost: starting tasktracker, logging to
> /var/log/hadoop/hadoop-hadoop-tasktracker-ws40-man-lin.out
>
>  can anyone tell me the way that i don't have to issue the password again
> and again ?
> can anyone tell me the way that all the process or hadoop scripts start
> automatically when i  turn on my  machine means i don't want to issue
> command bin/start-all.sh every time when  I reboot my computer?
>
>
>
> --
> View this message in context:
> http://lucene.472066.n3.nabble.com/hadoop-installation-problem-single-node-tp2613742p2649448.html
> Sent from the Hadoop lucene-users mailing list archive at Nabble.com.
>
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