Hi
Ok, I've start reading code :)
About WHIRR-221, some questions (the first batch, please bear with me
if the questions are too basic or obvious):
I know it somewhat breaks encapsulation between roles but some roles
have dependencies right?
e.g. - HBase depends on nn,dn and zookeeper.
Couldn't these dependencies be explicit per role?
We could then calculate start order based on the dependency graph
starting root nodes first and progressing up to the leaves, booting multiple
non-dependent roles per level.
Anyway and pertaining to what Tibor Kiss commented in JIRA on this
issue is there a requirement to also serialize ConfigureClusterAction?
Regards
David
On Feb 2, 2011, at 10:04 AM, Andrei Savu wrote:
> See bellow.
>
> On Wed, Feb 2, 2011 at 11:06 AM, David Alves <[email protected]> wrote:
>
>> Hi Andrei
>>
>> Great!!
>> I had already started browsing the project, looks good!
>> I think I'll start with WHIRR-221 just to get my feet wet and then
>> move on to WHIRR-214.
>>
>
> Awesome!
>
>
>> Some questions:
>> - Testing - beyond unit tests the wiki suggests iTests must be run
>> on a cloup provider. Do you have amazon (or other provider's) credits? do
>> you use your company(ies) credits?
>>
>
> I am using my credit card now, it's cheap enough but unfortunately slow. I'm
> trying to build a local Eucalyptus based private cloud at my university,
> they have some unused hardware.
>
>
>> - About WHIRR-214 the issue mentions adding/removing zookeeper
>> nodes, but zookeeper doesn't have this feature as of yet.
>> Are you thinking of a static zk ensemble (dynamic only for the other
>> services)?
>>
>
> You could resize a ZK ensemble by shutting down all the nodes and
> reconfiguring them. This is less than ideal but it could work.
>
>
>>
>> Thanks
>> david
>>
>>
>>
>> On Feb 1, 2011, at 10:08 PM, Andrei Savu wrote: I had already started
>> browsing the project, looks good!
>>
>>
>>> Hi David,
>>>
>>> Welcome :)
>>>
>>> You should start by reading:
>>>
>>> https://cwiki.apache.org/confluence/display/WHIRR/How+To+Contribute
>>>
>>> checking the sources from svn (or git), setting the IDE and running the
>> test
>>> suite.
>>>
>>> Here are two interesting unassigned issues that you could work on:
>>>
>>> https://issues.apache.org/jira/browse/WHIRR-221
>>> https://issues.apache.org/jira/browse/WHIRR-214
>>>
>>> What research project are you working on?
>>>
>>> Feel free to ask more questions :)
>>>
>>> On Tue, Feb 1, 2011 at 11:52 PM, David Alves <[email protected]>
>> wrote:
>>>
>>>> Hi
>>>>
>>>> I have some cloud/hadoop/hbase experience and I'd like to
>>>> contribute to whirr, if possible.
>>>> The project sounds very interesting and very inline with my
>> current
>>>> research.
>>>> Any outstanding unassigned issues I can start with, with a little
>>>> mentorship?
>>>>
>>>> Thanks
>>>> David
>>>
>>>
>>>
>>>
>>> --
>>> Andrei Savu -- andreisavu.ro
>>
>>
>
>
> --
> Andrei Savu -- andreisavu.ro
