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MapReduce, mail # user - Re: New hadoop 1.2 single node installation giving problems


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Re: New hadoop 1.2 single node installation giving problems
bejoy.hadoop@... 2013-07-23, 16:40
Hi Ashish

In your hdfs-site.xml within  <configuration> tag you need to have the <property> tag and inside a <property> tag you can have <name>,<value> and <description> tags.
Regards
Bejoy KS

Sent from remote device, Please excuse typos

-----Original Message-----
From: Ashish Umrani <[EMAIL PROTECTED]>
Date: Tue, 23 Jul 2013 09:28:00
To: <[EMAIL PROTECTED]>
Reply-To: [EMAIL PROTECTED]
Subject: Re: New hadoop 1.2 single node installation giving problems

Hey thanks for response.  I have changed 4 files during installation

core-site.xml
mapred-site.xml
hdfs-site.xml   and
hadoop-env.sh
I could not find any issues except that all params in the hadoop-env.sh are
commented out.  Only java_home is un commented.

If you have a quick minute can you please browse through these files in
email and let me know where could be the issue.

Regards
ashish

I am listing those files below.
*core-site.xml *
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>
  <property>
    <name>hadoop.tmp.dir</name>
    <value>/app/hadoop/tmp</value>
    <description>A base for other temporary directories.</description>
  </property>

  <property>
    <name>fs.default.name</name>
    <value>hdfs://localhost:54310</value>
    <description>The name of the default file system.  A URI whose
    scheme and authority determine the FileSystem implementation.  The
    uri's scheme determines the config property (fs.SCHEME.impl) naming
    the FileSystem implementation class.  The uri's authority is used to
    determine the host, port, etc. for a filesystem.</description>
  </property>
</configuration>

*mapred-site.xml*
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>
  <property>
    <name>mapred.job.tracker</name>
    <value>localhost:54311</value>
    <description>The host and port that the MapReduce job tracker runs
    at.  If "local", then jobs are run in-process as a single map
    and reduce task.
    </description>
  </property>
</configuration>

*hdfs-site.xml   and*
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>
  <name>dfs.replication</name>
  <value>1</value>
  <description>Default block replication.
    The actual number of replications can be specified when the file is
created.
    The default is used if replication is not specified in create time.
  </description>
</configuration>

*hadoop-env.sh*
# Set Hadoop-specific environment variables here.

# The only required environment variable is JAVA_HOME.  All others are
# optional.  When running a distributed configuration it is best to
# set JAVA_HOME in this file, so that it is correctly defined on
# remote nodes.

# The java implementation to use.  Required.
export JAVA_HOME=/usr/lib/jvm/jdk1.7.0_25

# Extra Java CLASSPATH elements.  Optional.
# export HADOOP_CLASSPATH

All pther params in hadoop-env.sh are commented
On Tue, Jul 23, 2013 at 8:38 AM, Jitendra Yadav
<[EMAIL PROTECTED]>wrote:

> Hi,
>
> You might have missed some configuration (XML tags ), Please check all the
> Conf files.
>
> Thanks
> On Tue, Jul 23, 2013 at 6:25 PM, Ashish Umrani <[EMAIL PROTECTED]>wrote:
>
>> Hi There,
>>
>> First of all, sorry if I am asking some stupid question.  Myself being
>> new to the Hadoop environment , am finding it a bit difficult to figure out
>> why its failing
>>
>> I have installed hadoop 1.2, based on instructions given in the
>> folllowing link
>>
>> http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/
>>
>> All went well and I could do the start-all.sh and the jps command does
>> show all 5 process to be present.
>>
>> However when I try to do
>>
>> hadoop fs -ls
>>
>> I get the following error