[Swift-devel] Rename versions of Globus commands in swift/bin?

Michael Wilde wilde at mcs.anl.gov
Wed Feb 11 22:37:35 CST 2009


These are cog-based versions of the commands.

The cool thing is that users get this core Globus functionality with no 
compilation needed: just untar Swift, and poof, you can make proxies, 
run jobs, move files (eg for setting this up on remote grid sites).

The issue I bumped into with proxies was cosmetic. The proxies are 
totally compatible as far as I know.  I just happened to have a 
front-end script for running swift code that checked to make sure the 
user has a valid proxy with some time left. And the time format returned 
by the swift grid-proxy-info was slightly different than the Globus one.

That broke my brittle little script - its not a criticism of the cog 
code version.

But its easy enough for us to refer, in swift docs, to swift-proxy-init, 
swift-proxy-info with a * explaining that the Globus versions of these 
are fine if you happen to have them.

- Mike


On 2/11/09 10:31 PM, Ian Foster wrote:
> Mike:
> 
> This begs the question for me as to why they are different. Are Swift 
> proxies different from Globus proxies, for example? And if so, why?
> 
> Ian.
> 
> 
> On Feb 11, 2009, at 10:29 PM, Michael Wilde wrote:
> 
>> Matt raises a good point below. Can we rename globus-url-copy, 
>> grid-proxy-init, and other commands that have the same name as Globus 
>> commands, to swift-url-copy, swift-proxy-init, etc?
>>
>> Especially for those that are not identical enough to the Globus 
>> versions (where that is tbd).
>>
>> Its extremely handy to have these commands there, but perhaps 
>> confusing for some users that get these in their paths ahead of the 
>> Globus versions. I realize calling them swift-* causes its own kind of 
>> confusion, but I'm excited that folks like Mats are installing Swift 
>> for users, and I'd like to remove any barriers, even the small ones.
>>
>> This is likely to be a bigger issue for users with the OSG client 
>> stack installed.
>>
>> On 2/11/09 10:18 PM, Michael Wilde wrote:
>>> On 2/11/09 9:28 PM, Mats Rynge wrote:
>>
>> ...
>>>>
>>>> Regarding bin/, it is pretty evil to have a globus-url-copy under the
>>>> swift bin/ which has a different set of command line options as the
>>>> Globus one. I had a plan on adding swift to the default path on our
>>>> submit node so all our users could use swift without doing anything
>>>> special. But having a different globus-url-copy means it would break
>>>> things for other users.
>>> I know what you mean. I actually got bit the other day by our copy of 
>>> grid-proxy-init - I was seeing the globus one, and one of my users 
>>> was seeing the swift one, with a slightly different output that broke 
>>> a script.
>>> So I agree - if the swift version is not pretty near identical, its 
>>> better to give it another name. I'll past your comment to the devel 
>>> list with a suggestion that we rename it. Perhaps swift-proxy-init, 
>>> swift-url-copy? (not sure how that will go over... ;)
>>> - Mike
>>
>> Mats, I would just go ahead and remove or rename those, in the meantime.
>>
>> I dont think anything points to them.
>>
>> - Mike
>>
>> _______________________________________________
>> Swift-devel mailing list
>> Swift-devel at ci.uchicago.edu
>> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
> 



More information about the Swift-devel mailing list