Re: [Condor-users] condor port problems

[Matthew Farrellee <matt@xxxxxxxxxx>]

$ condor_version
$CondorVersion: 7.2.1 Mar 20 2009 BuildID: RH-7.2.2-0.8.el5 $
$CondorPlatform: I386-LINUX_F10 $

$ for i in $(seq 1000); do env _CONDOR_LOWPORT=10000 
_CONDOR_HIGHPORT=10005 condor_shadow -t -f 2>&1 | grep "Command Socket" 
| awk '{print $7}' | sed 's/[^:]*:\(.*\)>/\1/'; done | sort | uniq -c
    160 10000
    165 10001
    167 10002
    178 10003
    167 10004
    163 10005

Is it possible you've flipped LOW/HIGHPORT? If you set LOWPORT to 10006 
above you'll see it is ignored, and the ports are randomly distributed.

If you don't have any free ports in the range you'll see:

Sock::bindWithin - failed to bind any port within (10000 ~ 10005)

(You can simulate used ports with "nc -l localhost 10000"...)

You can

Best,


matt


Cole Uhlman wrote:
> Perhaps I should clarify my problem.  I setup iptables to let through
> the same port range I put in LOWPORT/HIGHPORT (50000 - 50199).  But for
> some reason, the shadow daemon is taking it's random port outside this
> range.  For example, in ShadowLog:
>
> 3/16 15:54:20 DaemonCore: Command Socket at <x.x.x.x:59521>
>
> So the firewall blocks communication to the shadow and my VM job doesn't
> run.  The only time I've had it run is when I left in in the queue long
> enough to retry enough times to randomize to a valid port.
>
> Does anyone have an idea why condor_shadow would be ignoring my
> HIGH/LOWPORT settings?  Please help.
>
> -Cole
>
> On Mon, 2009-03-16 at 17:28 -0700, Cole Uhlman wrote:
> > Hi, all.
> >
> > I am still having the same problem from a little while ago
> > ("[Condor-users] running a xen vm universe job"), but I know a little
> > more now.
> >
> > It looks to me like condor_shadow is not following my port restrictions.
> > I have HIGHPORT and LOWPORT set in condor_config.  However, ShadowLog on
> > the submitter/centralmanager shows it using ports outside my set range;
> > and StarterLog on the execute machine shows my jobs failing because it
> > can't communicate with the shadow.
> >
> > So, is this a bug?  Is there some way I can fix it to actually follow my
> > HIGHPORT/LOWPORT settings?  Btw, I am running condor 7.2.1.  Does anyone
> > know about this?
> >
> > Thanks
> >
> > -Cole
> >
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