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From Automation Me <anautom...@gmail.com>
Subject Re: New to Hadoop-SSH communication
Date Tue, 30 Apr 2013 22:18:05 GMT
Thank you Mitra..I will change the hostname


On Tue, Apr 30, 2013 at 6:16 PM, Mitra Kaseebhotla <
mitra.kaseebhotla@gmail.com> wrote:

> and change the hostname to reflect your actual hostnames.
>
>
>
> On Tue, Apr 30, 2013 at 3:14 PM, Mohammad Tariq <dontariq@gmail.com>wrote:
>
>> comment out 127.0.1.1 ubuntu in both the machines.
>>
>> if it still doesn't work change 127.0.1.1    master to something else,
>> like 127.0.0.3 or something.
>>
>> Warm Regards,
>> Tariq
>> https://mtariq.jux.com/
>> cloudfront.blogspot.com
>>
>>
>> On Wed, May 1, 2013 at 3:34 AM, Automation Me <anautomate@gmail.com>wrote:
>>
>>> Hi Tariq,
>>>
>>>
>>> Master:
>>>
>>> Users:
>>> hduser hduser
>>>
>>> hostname:
>>> ubuntu
>>>
>>> *etc/hosts*
>>>
>>> 127.0.0.1 localhost
>>> 127.0.1.1 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
>>>
>>> 127.0.1.1    master
>>> 127.0.0.2   slave
>>>
>>>
>>> Slave Machine:
>>>
>>> Etc/Hosts
>>> 127.0.0.1 localhost
>>> 127.0.1.1 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
>>>
>>>
>>> 127.0.1.1    master
>>> 127.0.0.2   slave
>>>
>>>
>>> users:
>>> hduser hduser
>>>
>>> Hostname:
>>>
>>> ubuntu
>>>
>>>
>>> On Tue, Apr 30, 2013 at 5:52 PM, Automation Me <anautomate@gmail.com>wrote:
>>>
>>>> @Mitra Yes I cloned the same VM's. By default Ubuntu takes 127.0.0.1
>>>> -ubuntu hostname for all machines
>>>>
>>>> @Tariq i will send the hosts file and users of all the machines.
>>>>
>>>>
>>>> On Tue, Apr 30, 2013 at 5:42 PM, Mitra Kaseebhotla <
>>>> mitra.kaseebhotla@gmail.com> wrote:
>>>>
>>>>> Looks like you have just cloned/copied the same VMs. Change the
>>>>> hostname of each:
>>>>>
>>>>> http://askubuntu.com/questions/87665/how-do-i-change-the-hostname-without-a-restart
>>>>>
>>>>>
>>>>>
>>>>> On Tue, Apr 30, 2013 at 2:30 PM, Automation Me <anautomate@gmail.com>wrote:
>>>>>
>>>>>> Thank you Tariq.
>>>>>>
>>>>>> I am using  the same username on both the machines and when i try
to
>>>>>> copy a file master to slave just to make sure SSH is working fine,
The file
>>>>>> is copying into master itself not an slave machine.
>>>>>>
>>>>>>   scp -r /usr/local/somefile hduser@slave:/usr/local/somefile
>>>>>>
>>>>>> Any suggestions...
>>>>>>
>>>>>>
>>>>>> Thanks
>>>>>> Annt
>>>>>>
>>>>>>
>>>>>>
>>>>>> On Tue, Apr 30, 2013 at 5:14 PM, Mohammad Tariq <dontariq@gmail.com>wrote:
>>>>>>
>>>>>>> ssh is actually *user@some_machine *to *user@some_other_machine*.
>>>>>>> either use same username on both the machines or add the IPs
along with
>>>>>>> proper user@hostname in /etc/hosts file.
>>>>>>>
>>>>>>> HTH
>>>>>>>
>>>>>>> Warm Regards,
>>>>>>> Tariq
>>>>>>> https://mtariq.jux.com/
>>>>>>> cloudfront.blogspot.com
>>>>>>>
>>>>>>>
>>>>>>> On Wed, May 1, 2013 at 2:39 AM, Automation Me <anautomate@gmail.com>wrote:
>>>>>>>
>>>>>>>> Hello,
>>>>>>>>
>>>>>>>> I am new to Hadoop and trying to install multinode cluster
on
>>>>>>>> ubuntu VM's.I am not able to communicate between two clusters
using SSH.
>>>>>>>>
>>>>>>>> My host file:
>>>>>>>>
>>>>>>>> 127.0.1.1 Master
>>>>>>>> 127.0.1.2 Slave
>>>>>>>>
>>>>>>>> The following changes i made in two VM's
>>>>>>>>
>>>>>>>> 1.Updated the etc/hosts file in two vm's
>>>>>>>>
>>>>>>>> on Master VM
>>>>>>>>  i did SSH keygen and trying to copy the key into Slave
>>>>>>>>
>>>>>>>> ssh-keygen -t rsa -P ""
>>>>>>>>        cat $HOME/.ssh/id_rsa.pub >> $HOME/.ssh/authorized_keys
>>>>>>>>        ssh-copy-id -i $HOME/.ssh/id_rsa.pub slave@ubuntu.
>>>>>>>>
>>>>>>>> When i login into master and slave  and check
>>>>>>>>
>>>>>>>> master@ubuntu>Hostname it says UBUNTU
>>>>>>>> slave@ubuntu>Hostname it says UBUNTU
>>>>>>>>
>>>>>>>>
>>>>>>>> Could you assist me on this?
>>>>>>>>
>>>>>>>> Thanks
>>>>>>>> Annt
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>
>>>>>>
>>>>>
>>>>>
>>>>> --
>>>>>  ________________________________________
>>>>>
>>>>>  To Understand Recursion,
>>>>>  You must first Understand Recursion
>>>>>  ________________________________________
>>>>>
>>>>
>>>>
>>>
>>
>
>
> --
>  ________________________________________
>
>  To Understand Recursion,
>  You must first Understand Recursion
>  ________________________________________
>

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