[Swift-devel] Re: InternalHostname in sites file

[David Kelly]

Sure, Jon. The userguide is now kept in the docs/userguide directory of
Swift. It's in asciidoc format. Feel free to make changes there, or email me
the text and I can add it for you.

David

On Thu, Jun 2, 2011 at 3:10 PM, Jonathan S Monette <jonmon at utexas.edu>wrote:

> I can write something up and send it to David to add somewhere for the
> userguide.  Not sure where the files for the userguide are kept.
>
>
> On Thu, Jun 2, 2011 at 3:08 PM, Michael Wilde <wilde at mcs.anl.gov> wrote:
>
>> Thanks for clarifying. Jon and/or David, can you address this with a
>> cookbook entry on Coasters that heads towards a users guide section?
>>
>> We should tell users what they can run on their cluster (eg ping or
>> telnet-style connect tests) to validate the setting of internalHostName.
>>
>> - Mike
>>
>>
>>
>> ----- Original Message -----
>> > Right. If the head node has multiple network interfaces, only one of
>> > which is visible from the worker nodes.
>> >
>> > The choice of which interface is the one that worker nodes can connect
>> > to is a matter of the particular cluster. It's not particularly easy
>> > to
>> > have an automated mechanism that figures it out. We tried some scheme
>> > to
>> > pass all the interface addresses to the worker and let it try to
>> > connect
>> > to all of them in order, but that didn't work very well. Of course,
>> > there might be a scheme that works, but I didn't want to spend too
>> > much
>> > time on that.
>> >
>> > So that's why it's needed. To clarify to the workers which exact
>> > interface on the head node they are to try to connect to.
>> >
>> > Mihael
>> >
>> > On Thu, 2011-06-02 at 14:10 -0500, Jonathan S Monette wrote:
>> > > Mihael,
>> > >    I believe we have talked about this before but why is it
>> > >    necessary
>> > > for an InternalHostname to be specified for PADS? I know that the
>> > > address that coasters connects to is wrong but I do not remember why
>> > > that was. Could you give an explanation on why internalHostname
>> > > needs
>> > > to be set?
>> > >
>> > > --
>> > >
>> > >
>> > > Any intelligent fool can make things bigger and more complex... It
>> > > takes a touch of genius - and a lot of courage to move in the
>> > > opposite
>> > > direction.
>> > >
>> > > - Albert Einstein
>> > >
>> > >
>> > >
>> >
>> >
>> > _______________________________________________
>> > Swift-devel mailing list
>> > Swift-devel at ci.uchicago.edu
>> > http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>>
>> --
>> Michael Wilde
>> Computation Institute, University of Chicago
>> Mathematics and Computer Science Division
>> Argonne National Laboratory
>>
>>
>
>
> --
>
> Any intelligent fool can make things bigger and more complex... It takes a
> touch of genius - and a lot of courage to move in the opposite direction.
>
> - Albert Einstein
>
>
> _______________________________________________
> Swift-devel mailing list
> Swift-devel at ci.uchicago.edu
> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>
>
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