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Sqoop >> mail # user >> hadoop namenode problem


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Re: hadoop namenode problem
to start the hdfs use -

$ for service in /etc/init.d/hadoop-hdfs-*
> do
> sudo $service start
> done

and to start mapreduce do -

$ for service in /etc/init.d/hadoop-0.20-mapreduce-*
> do
> sudo $service start
> done

Regards,
    Mohammad Tariq
On Fri, Jun 15, 2012 at 4:54 PM, soham sardar <[EMAIL PROTECTED]> wrote:
> hey mohammad
> i wanna knw how to start all the nodes of hadoop like in cdh3 there
> was a script /bin/start-all.sh
> but in the cdh4 tarballs  i dont find any such script??
>
> On Fri, Jun 15, 2012 at 4:39 PM, Mohammad Tariq <[EMAIL PROTECTED]> wrote:
>> in both the lines???i mean your hosts file should look something like this -
>>
>> 127.0.0.1       localhost
>> 127.0.0.1       ubuntu.ubuntu-domain    ubuntu
>>
>> # The following lines are desirable for IPv6 capable hosts
>> ::1     ip6-localhost ip6-loopback
>> fe00::0 ip6-localnet
>> ff00::0 ip6-mcastprefix
>> ff02::1 ip6-allnodes
>> ff02::2 ip6-allrouters
>>
>> Regards,
>>     Mohammad Tariq
>>
>>
>> On Fri, Jun 15, 2012 at 4:32 PM, soham sardar <[EMAIL PROTECTED]> wrote:
>>> hey mohammad but its already 127.0.0.1 i guess
>>>
>>>
>>> On Fri, Jun 15, 2012 at 4:24 PM, Mohammad Tariq <[EMAIL PROTECTED]> wrote:
>>>> All looks fine to me..change the line "127.0.1.1" in your hosts file
>>>> to "127.0.0.1" and see if it works for you.
>>>>
>>>> Regards,
>>>>     Mohammad Tariq
>>>>
>>>>
>>>> On Fri, Jun 15, 2012 at 4:14 PM, soham sardar <[EMAIL PROTECTED]> wrote:
>>>>> configuration in the sense i have given the following configs
>>>>>
>>>>> hdfs-site
>>>>>
>>>>> <property>
>>>>>  <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>
>>>>> </property>
>>>>>
>>>>> core-site
>>>>>
>>>>> <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>
>>>>>
>>>>> and yarn-site
>>>>>
>>>>> <property>
>>>>>    <name>yarn.resourcemanager.resource-tracker.address</name>
>>>>>    <value>localhost:8031</value>
>>>>>    <description>host is the hostname of the resource manager and
>>>>>    port is the port on which the NodeManagers contact the Resource Manager.
>>>>>    </description>
>>>>>  </property>
>>>>>
>>>>>  <property>
>>>>>    <name>yarn.resourcemanager.scheduler.address</name>
>>>>>    <value>localhost:8030</value>
>>>>>    <description>host is the hostname of the resourcemanager and port
>>>>> is the port
>>>>>    on which the Applications in the cluster talk to the Resource Manager.
>>>>>    </description>
>>>>>  </property>
>>>>>
>>>>>  <property>
>>>>>    <name>yarn.resourcemanager.scheduler.class</name>
>>>>>    <value>org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler</value>
>>>>>    <description>In case you do not want to use the default
>>>>> scheduler</description>
>>>>>  </property>
>>>>>
>>>>>  <property>
>>>>>    <name>yarn.resourcemanager.address</name>
>>>>>    <value>localhost:8032</value>
>>>>>    <description>the host is the hostname of the ResourceManager and
>>>>> the port is the port on
>>>>>    which the clients can talk to the Resource Manager. </description>
>>>>>  </property>
>>>>>
>>>>>  <property>
>>>>>    <name>yarn.nodemanager.local-dirs</name>
>>>>>    <value></value>