[Swift-devel] Re: Worker connection

[Mihael Hategan]

On Fri, 2010-08-13 at 11:43 -0500, Jonathan Monette wrote:
> Right now I am using "internalHostname".  I was just wondering if an 
> should this be changed since I am always changing this entry depending 
> if I am on login1 or login2?

It should, but the question is to what.

I offer $20 to the first person to find a reliable (that works on all TG
sites + PADS + Intrepid), quick (that does not, by itself, delay worker
startup or the overall workflow by more than a few seconds) and
automated way of figuring out that IP. I reserve the right to refuse a
solution if it does not meet certain propriety criteria that I did not
necessarily specify here.

(btw you could make a wrapper around swift that detects whether you are
on login1 or login2 and picks one of two sites files and passes that to
swift).

Mihael

> 
> On 8/13/10 11:35 AM, Mihael Hategan wrote:
> > On Fri, 2010-08-13 at 11:30 -0500, Jonathan Monette wrote:
> >    
> >> Hello,
> >>       How does the worker decide what connection to connect to?  Right
> >> now what I think it does is it runs ifconfig and greps the inet address
> >> and then test each of these connections.  Is this correct?  When I am
> >> running on PADS it seems that the worker always chooses the wrong
> >> connection to the service.  It seems to choose the UBS0 connection where
> >> the correct connection is the ib0 connection.  Is there a way that maybe
> >> the worker can be fixed to choose a better connection or the correct
> >> connection?  This seems to be only happening on PADS.
> >>
> >>      
> > That was temporary. Initially it would use the same address as the url
> > in sites.xml. Then I added the "try all interfaces" thing, but in some
> > cases the connect on certain wrong addresses does not fail quickly
> > enough and has to timeout instead, which usually takes a few minutes. So
> > that got disabled and only the frist address is used now (unless
> > overridden - see below).
> >
> > You can say<profile namespace="globus"
> > key="internalHostname">x.y.z.w</profile>  in sites.xml
> >
> > Mihael
> >
> >
> >
> >    
>