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

["Shrum, Donald C" <DCShrum@xxxxxxxxxxxxx>]

As always, thanks Ian.

 

We had flocking set up with another University and using the ‘this was one of the last things I touched’ trouble shooting method I just disabled flocking and Condor Connection Brokering (CCB_ADDRESS)

 

That may have resolved the problem… we’ll see.

 

--Don

FSU HPC

 

 

From: condor-users-bounces@xxxxxxxxxxx [mailto:condor-users-bounces@xxxxxxxxxxx] On Behalf Of Ian Chesal
Sent: Thursday, September 06, 2012 9:34 AM
To: Condor-Users Mail List
Subject: Re: [Condor-users] 7.8.2 / running out of ports for UDP

 

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

Leader in Open Compute Solutions for Clouds, Servers, and Desktops

Enterprise Condor Support and Management Tools

888.292.5320

 

http://www.cyclecomputing.com

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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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