Re: [Condor-users] 7.8.2 / running out of ports for UDP

[Ian Chesal <ichesal@xxxxxxxxxxxxxxxxxx>]

Donald,

You could switch to TCP for collector updates:

UPDATE_COLLECTOR_WITH_TCP = True

See: http://research.cs.wisc.edu/condor/manual/v7.6/3_3Configuration.html#16701

Or even better: switch to using the shared port daemon. This should help reduce the number of connections needed on any one machine. See: http://research.cs.wisc.edu/condor/manual/v7.6/3_7Networking_includes.html#32152

Regards,

- Ian

-- 

Ian Chesal

Cycle Computing, LLC

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On Thursday, 6 September, 2012 at 9:28 AM, Shrum, Donald C wrote:

Looks like the collector -

udp 0 0 10.178.6.5:41796 10.178.6.5:1980 ESTABLISHED 580/condor_collecto

udp 0 0 10.178.6.5:43588 10.178.6.5:1980 ESTABLISHED 580/condor_collecto

udp 0 0 10.178.6.5:48964 10.178.6.5:1980 ESTABLISHED 580/condor_collecto

udp 0 0 10.178.6.5:40004 10.178.6.5:1980 ESTABLISHED 580/condor_collecto

udp 0 0 10.178.6.5:47684 10.178.6.5:1980 ESTABLISHED 580/condor_collecto

This was on the central manager. Next time I see it happen on a processing node I'll check there as well.

-----Original Message-----

From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-bounces@xxxxxxxxxxx] On Behalf Of Brian Candler

Sent: Thursday, September 06, 2012 8:36 AM

To: Condor-Users Mail List

Subject: Re: [Condor-users] 7.8.2 / running out of ports for UDP

On Thu, Sep 06, 2012 at 12:27:46PM +0000, Shrum, Donald C wrote:

I'm running redhat 6.3 with condor 7.8.2

On a number of my servers, both processing and on the central manager;

I find condor holding open a massive number of UDP ports. So many that

it blocks any new connections and DNS lookups fail.

Is this happening for anyone else?

Can you say which particular condor process is holding open the ports?

netstat -naup

(as root) should show you the process name and pid for each socket.

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