[Starcluster] problem with centOS ami?

[Dan Yamins]

On Thu, Sep 2, 2010 at 9:53 PM, Fred Rotbart <rotbart at softbart.com> wrote:

> Hi Dan,
>
> Thanks for the help.
>
> I had started building a lot of stuff from sources. However, the Python 2.6
> I took from
> http://chrislea.com/2009/09/09/easy-python-2-6-django-on-centos-5/. Any
> advantage to building the Python from sources?
>

Well, three reasons:

1) I needed a 64-bit install.   Typically I've found that 64-bit
pre-compiled binaries are less reliable than building 64-bit.   This is the
main reason I used a source as opposed to a pre-compiled binary (e.g from
python.org itself).

2) As explained at the top of Chris Lea's post, overwriting the system
python on centOS with python26 is really bad.   I really really needed to
make sure that it didn't screw things up and so I decided to install in
/opt, where a completely standard install would work fine and be sure not to
interfere.  To make a package install work while completely not interfering
with the other system installs, putting all the relevant byte-compiled
dependencies in version-number-named places throughout the distros, requires
alot of finicky work. I'm not comfortable enough with yum to feel like I
totally understood how to evaluate whether any given person's repo was
likely to be "right".    This is the main reason I would use a non-yum-based
install vs. a repo install.

3) I wasn't aware of Chris Lea's work -- thank you so much for telling me of
it  If I had known of it, perhaps I would have used it (if there's a 64-bit
version) -- but subject to the above provisos.


BTW why did you use the Rightscale image rather than using the Amazon one?
>

I've typically found Rightscale images to be more reliable than Amazon ones
actually -- and more things I already need are on them.   Which amazon
image  were you referring to?




>
> - Fred
>
>
> On 3/09/10 09:49 , Dan Yamins wrote:
>
>> Fred, sorry for the delay in reply.
>>
>> I've put the instructions up here at this google doc
>>
>>
>> https://docs.google.com/Doc?docid=0Aa_xSFd7IOCfZGhzN3JwanBfMTA1ZjRwNWp6dGo&hl=en&authkey=CI2p-t8J
>> <
>> https://docs.google.com/Doc?docid=0Aa_xSFd7IOCfZGhzN3JwanBfMTA1ZjRwNWp6dGo&hl=en&authkey=CI2p-t8J
>> >
>>
>> Let me know if you can't access this doc.
>>
>> On Tue, Aug 31, 2010 at 8:35 PM, Fred Rotbart <rotbart at softbart.com
>> <mailto:rotbart at softbart.com>> wrote:
>>
>>      Hi Dan,
>>
>>    Did you happen to make a cookbook for making the CentOS StarCluster
>> AMI?
>>    If so can you make it available?
>>
>>    - Fred
>>
>>
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>>
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>
> --
> ===================================================================
> Dr. Frederick C. Rotbart    Rotbart Software Technologies Pty. Ltd.
> Tel: +61 9024 3914          38 Arthur Street,
> Mobile: +61 422 569 102     Vic. 3141 Australia
> rotbart at softbart.com
>
>
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