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From Shekhar Sharma <shekhar2...@gmail.com>
Subject Re: New hadoop 1.2 single node installation giving problems
Date Tue, 23 Jul 2013 17:13:59 GMT
After starting  i would suggest always check whether your NameNode and job
tracker UI are working or not and check the number of live nodes in both of
the UI..
Regards,
Som Shekhar Sharma
+91-8197243810


On Tue, Jul 23, 2013 at 10:41 PM, Ashish Umrani <ashish.umrani@gmail.com>wrote:

> Thanks,
>
> But the issue was that there was no directory and hence it was not showing
> anything.  Adding a directory cleared the warning.
>
> I appreciate your help.
>
> Regards
> ashish
>
>
> On Tue, Jul 23, 2013 at 10:08 AM, Mohammad Tariq <dontariq@gmail.com>wrote:
>
>> Hello Ashish,
>>
>> Change the permissions of /app/hadoop/tmp to 755 and see if it helps.
>>
>> Warm Regards,
>> Tariq
>> cloudfront.blogspot.com
>>
>>
>> On Tue, Jul 23, 2013 at 10:27 PM, Ashish Umrani <ashish.umrani@gmail.com>wrote:
>>
>>> Thanks Jitendra, Bejoy and Yexi,
>>>
>>> I got past that.  And now the ls command says it can not access the
>>> directory.  I am sure this is a permissions issue.  I am just wondering
>>> which directory and I missing permissions on.
>>>
>>> Any pointers?
>>>
>>> And once again, thanks a lot
>>>
>>> Regards
>>> ashish
>>>
>>> *hduser@ashish-HP-Pavilion-dv6-Notebook-PC:/usr/local/hadoop/conf$
>>> hadoop fs -ls*
>>> *Warning: $HADOOP_HOME is deprecated.*
>>> *
>>> *
>>> *ls: Cannot access .: No such file or directory.*
>>>
>>>
>>>
>>> On Tue, Jul 23, 2013 at 9:42 AM, Jitendra Yadav <
>>> jeetuyadav200890@gmail.com> wrote:
>>>
>>>> Hi Ashish,
>>>>
>>>> Please check <property></property>  in hdfs-site.xml.
>>>>
>>>> It is missing.
>>>>
>>>> Thanks.
>>>> On Tue, Jul 23, 2013 at 9:58 PM, Ashish Umrani <ashish.umrani@gmail.com
>>>> > wrote:
>>>>
>>>>> 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 <
>>>>> jeetuyadav200890@gmail.com> 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 <
>>>>>> ashish.umrani@gmail.com> 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
>>>>>>>
>>>>>>>  hduser@ashish-HP-Pavilion-dv6-Notebook-PC:/usr/local/hadoop/conf$
>>>>>>> hadoop fs -ls
>>>>>>> Warning: $HADOOP_HOME is deprecated.
>>>>>>>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> 13/07/23 05:55:06 WARN conf.Configuration: bad conf file: element
>>>>>>> not <property>
>>>>>>> ls: Cannot access .: No such file or directory.
>>>>>>> hduser@ashish-HP-Pavilion-dv6-Notebook-PC:/usr/local/hadoop/conf$
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> Can someone help me figure out whats the issue in my installation
>>>>>>>
>>>>>>>
>>>>>>> Regards
>>>>>>> ashish
>>>>>>>
>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>

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