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From Automation Me <anautom...@gmail.com>
Subject Re: New to Hadoop-SSH communication
Date Wed, 01 May 2013 15:25:51 GMT
I am still not able to communicate between two Vm's. Changed the hostname
as Master and Slave.Copied the hostnames in master slave
etc/hosts.reinstalled SSH server.

But when i try to copy the file from master to slave its copying to the
master and not to the slave
scp -r /usr/local/hadoop/conf hduser@slave:/home/hduser/Downloads/Somethings

Master etc/hosts
# 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




127.0.0.2   slave
127.0.0.3   master

Slave etc/hosts
#127.0.0.1 localhost


# 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


127.0.0.2   slave
127.0.0.3   master


am i missing anything..Thanks in advance..


On Tue, Apr 30, 2013 at 6:18 PM, Automation Me <anautomate@gmail.com> wrote:

> 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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