Thanks for the quick answers. More questions inline:
> I think Tom's presentation explains the process in detail. > > True - this was more to confirm the infor read. > > My interest is to: > > - know where to define SecurityGroup rules (in ec2 dialect) - in > > flume it seems to be located in beforeConfigure while at that stage I > > would have assumed tthe VM to be already started > > Yes, the VM is already running but keep in mind that by default the > SecurityGroup denies outside access and allows any kind of > communication inside. If you wish you can change the firewall settings > in afterConfigure and it should work just fine. > > Warning: there is no firewall support for cloudservers and by default > there are no connection restrictions. > > > - know if I can set-up fw rules involving external/local addresses > > I don't really understand this question. You can specify the source IP > for a rule. > > Does this mean that until I set a rule involving an external host my cluster will not be usable ? Or is there default ports opened for any external hosts (22, 80) ? Anyway I thought that those ports add to be defined before (jclouds, ec2, ...) actually launch the vms. I was probably wrong. > > - know how to decide in which order ServiceMasterHandler / > > ServiceNodeHandler shall be run (sometimes nodes need the master ip > > or vice-versa) > > This is not supported. We are currently running scripts concurrently > on all machines for each cluster lifecycle step. There is an open > issue for this. On the long term we want to be able to define a DAG > for the supported services. > > https://issues.apache.org/jira/browse/WHIRR-221 > > I am not sure this is useful anymore in my case since I believe from what you explained that vms are already started when Bootstrap is run and therefore IPs hosname (private/local) are already known to whirr. Correct ? > I'm not sure how clear my answers are so feel free to ask more questions. > > Cheers, > > Cheers Guillaume > Andrei > > > > > Thanks for your help > > > > Guillaume > > > > On Mon, Aug 15, 2011 at 8:28 AM, tog <[email protected]> wrote: > >> > >> Thanks, looks pretty easy - will start creating new services > >> > >> On Sun, Aug 14, 2011 at 11:53 PM, Andrei Savu <[email protected]> > wrote: > >>> > >>> Take a look at the following presentation: > >>> > >>> http://www.oscon.com/oscon2011/public/schedule/detail/19214 > >>> > >>> Explains what Whirr is and how to add a new service. > >>> > >>> -- Andrei Savu / andreisavu.ro > >>> > >>> On Sun, Aug 14, 2011 at 8:16 AM, tog <[email protected]> > wrote: > >>> > i just came across whirr today - i was wondering if that could be > used to > >>> > configure a compute cluster on ec2 - for example something having: > >>> > - ntp, nfs, mpi, slurm configured > >>> > > >>> > I guess new roles have to be created for both the head node and slave > nodes > >>> > of the cluster. > >>> > > >>> > Is there some place where I could learn that ? > >>> > > >>> > Guillaume > >>> > > >>> > -- > >>> > PGP KeyID: 2048R/EA31CFC9 subkeys.pgp.net > >>> > > >> > >> > >> > >> -- > >> PGP KeyID: 2048R/EA31CFC9 subkeys.pgp.net > > > > > > > > -- > > PGP KeyID: 2048R/EA31CFC9 subkeys.pgp.net > > > -- PGP KeyID: 2048R/EA31CFC9 subkeys.pgp.net
