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 [email protected] as I'm get all mails twice because my mail address is additionally in the "mail to" ________________________________ Von: Andrei Savu <[email protected]> An: [email protected]; Christian Schäfer <[email protected]> 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 <[email protected]> wrote: tried b) and it works ...thanks for the help :) > > > > >________________________________ >Von: Andrei Savu <[email protected]> >An: [email protected]; Christian Schäfer <[email protected]> >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 <[email protected]> >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 [email protected] >> >> >>? >> >> >> >>________________________________ >>Von: Andrei Savu <[email protected]> >>An: [email protected]; Christian Schäfer <[email protected]> >>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 <[email protected]> >>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 [email protected] >>> >>>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 <[email protected]> >>>An: [email protected]; Christian Schäfer <[email protected]> >>>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 <[email protected]> >>>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 [email protected] >>>> >>>>...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 >>>> >>>> >>>> >>>> >>>> >>>> >>> >>> >>> >> >> >> > > >
