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From Christian Schäfer <syrious3...@yahoo.de>
Subject Re: hbase cluster setup works - ssh to machine doesnt
Date Mon, 31 Oct 2011 13:15:18 GMT
Hello Andrei,

mainly I will use whirr to create comparable hbase and cassandra test clusters.

On these I will perform some benchmarks to make a afterwards an comprehensible decision for
a kind of a often called "web of things" project 
where a lot of rfid-scan-event need to be stored and processed to monitor logistics.

Because there are also some good benchmark papers (like http://research.yahoo.com/files/ycsb.pdf)

I will look closer to HBase and will compare performance of using hbase-raw-api with datanucleus-hbase-jpa

If anybody knows further (not too old) benchmark papers concerning hbase and cassandra they
are welcome :-)

regards
Christian

P.S. just a kind notice: it would be sufficient if you would let the "mail to" only on user@whirr.apache.org
as I'm get all mails twice because my mail address is additionally in the "mail to"


________________________________
Von: Andrei Savu <savu.andrei@gmail.com>
An: user@whirr.apache.org; Christian Schäfer <syrious3000@yahoo.de>
Gesendet: 12:57 Montag, 31.Oktober 2011 
Betreff: Re: hbase cluster setup works - ssh to machine doesnt


Christian - 
I'm glad it works for you! 

Can you share more about how are you using or planning to use Apache Whirr? 

Thanks,


-- Andrei Savu


On Mon, Oct 31, 2011 at 1:52 PM, Christian Schäfer <syrious3000@yahoo.de> wrote:

tried b) and it works ...thanks for the help :)
>
>
>
>
>________________________________
>Von: Andrei Savu <savu.andrei@gmail.com>
>An: user@whirr.apache.org; Christian Schäfer <syrious3000@yahoo.de>
>Gesendet: 12:07 Montag, 31.Oktober 2011 
>
>Betreff: Re: hbase cluster setup works - ssh to machine doesnt
>
>
>
>Both approaches should have the same end result: a successful ssh login on the remote
machine.
>
>
>whirr.cluster-user defaults to the local user running Whirr. 
>
>
>On Mon, Oct 31, 2011 at 1:02 PM, Christian Schäfer <syrious3000@yahoo.de> wrote:
>
>So before I burn another $ for nothing....should I try
>>
>>
>>a)  ssh-i ~/.ssh/id_rsa ec2-50-17-89-76.compute-1.amazonaws.com
>>or did you mean
>>
>>b) define whirr.cluster-user  = myName
>>and after cluster launch connect with:
>>ssh-i ~/.ssh/id_rsa myName@ec2-50-17-89-76.compute-1.amazonaws.com
>>
>>
>>?
>>
>>
>>
>>________________________________
>>Von: Andrei Savu <savu.andrei@gmail.com>
>>An: user@whirr.apache.org; Christian Schäfer <syrious3000@yahoo.de>
>>Gesendet: 10:23 Montag, 31.Oktober 2011 
>>
>>Betreff: Re: hbase cluster setup works - ssh to machine doesnt
>>
>>
>>
>>It is just discard ubuntu@host. 
>>
>>
>>whirr.cluster-user  = your local user
>>
>>
>>
>>-- Andrei Savu
>>
>>
>>On Mon, Oct 31, 2011 at 11:19 AM, Christian Schäfer <syrious3000@yahoo.de>
wrote:
>>
>>As written in my inital mail I exactly do installl and login as in the whirr faq/tutorial
>>>
>>>e.g. 
>>>
>>>hbase-ec2.properties
>>>
>>>>whirr.private-key-file=${sys:user.home}/.ssh/id_rsa
>>>>whirr.public-key-file=${sys:user.home}/.ssh/id_rsa.pub
>>>
>>>
>>>>ssh -i ~/.ssh/id_rsa ubuntu@ec2-204-236-242-13.compute-1.amazonaws.com
>>>
>>>the jira is maybe helpful...but when I configure whirr with freshly generated
rsa key pair it should after install be possible to login with the same keys...but isnt :(
>>>
>>>
>>>________________________________
>>>Von: Andrei Savu <savu.andrei@gmail.com>
>>>An: user@whirr.apache.org; Christian Schäfer <syrious3000@yahoo.de>
>>>Gesendet: 8:49 Montag, 31.Oktober 2011 
>>>Betreff: Re: hbase cluster setup works - ssh to machine doesnt
>>>
>>>
>>>
>>>From the FAQ: http://whirr.apache.org/faq.html
>>>How do I log in to a node in the cluster?
>>>On EC2, if you know the node's address you can do:
>>>ssh -i ~/.ssh/id_rsa <whirr.cluster-user>@host
>>>This assumes that you use the default private key; if this is not the case then
specify the one you used at cluster launch.
>>>whirr.cluster-user defaults to the name of the local user running Whirr.
>>>I have also created this new JIRA issue so that we can actually display the SSH
command in the console:
>>>https://issues.apache.org/jira/browse/WHIRR-419
>>>Cheers,
>>>-- Andrei Savu / andreisavu.ro
>>>
>>>
>>>
>>>On Mon, Oct 31, 2011 at 1:22 AM, Christian Schäfer <syrious3000@yahoo.de>
wrote:
>>>
>>>
>>>>
>>>>Hi there,
>>>>
>>>>
>>>>just trying to get my first hbase test cluster of 6 machines working using
whirr-0.6.0-incubating...
>>>>
>>>>
>>>>
>>>>before cluster launch  I generated public/private key 
>>>>
>>>>>ssh-keygen -t rsa -P '' -f ~/.ssh/id_rsa
>>>>
>>>>..and set  key files in hbase-ec2.properties as follows
>>>>
>>>>>whirr.private-key-file=${sys:user.home}/.ssh/id_rsa
>>>>>whirr.public-key-file=${sys:user.home}/.ssh/id_rsa.pub
>>>>
>>>>
>>>>After:
>>>>>/whirr-0.6.0-incubating$ bin/whirr launch-cluster --config hbase-ec2.properties
(prop. copied from recipes to parent dir)
>>>>
>>>>..cluster setup finished without a problem..
>>>>
>>>>
>>>>But when I try (<user>@<machine> is copied from the aws console
after choosing "connect" on an  actually running machine ):
>>>>>ssh -i ~/.ssh/id_rsa ubuntu@ec2-204-236-242-13.compute-1.amazonaws.com
>>>>
>>>>...I get permission denied:
>>>>
>>>>>The authenticity of host 'ec2-204-236-242-13.compute-1.amazonaws.com (204.236.242.13)'
can't be established.
>>>>>RSA key fingerprint is **********************
>>>>>Are you sure you want to continue connecting (yes/no)? yes
>>>>>Warning: Permanently added 'ec2-204-236-242-13.compute-1.amazonaws.com,204.236.242.13'
(RSA) to the list of known hosts.
>>>>>Permission denied (publickey).
>>>>
>>>>
>>>>Has anybody a clue why that
 happens?
>>>>
>>>>Another thing I dont understand is that whirr is creating a security group
(jcloud...) and when I choose "connect" in the aws console it proposes a jclouds...pem file 
that I dont own and dont know where to get it from
>>>>
>>>>
>>>>
>>>>regards
>>>>Chris
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>
>>
>>
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