[torqueusers] canot connect to port 1023 connection refused

David Beer dbeer at adaptivecomputing.com
Fri Apr 9 10:00:39 MDT 2010


If you're using privileged ports - which it looks like you are from the error message - then each connection will be on a port < 1024, so you're limited to 1024 concurrent connections minus whatever other ports under 1024 are being used by other programs.

David

----- "Brock Palen" <brockp at umich.edu> wrote:

> We started seeing a lot of messages like:
> 
> 04/08/2010 00:00:00;0001;   pbs_mom;Svr;pbs_mom;LOG_ERROR::Operation 
> 
> now in progress (115) in post_epilogue, cannot connect to port 1023 in
>  
> client_to_svr - connection refused
> 04/08/2010 00:00:00;0001;   pbs_mom;Svr;pbs_mom;LOG_ERROR::Operation 
> 
> now in progress (115) in post_epilogue, cannot connect to port 1023 in
>  
> client_to_svr - connection refused
> 
> In the mom logs, jobs still start and end fine, but we are seeing some
>  
> strange pbs_server pbs_mom sync issues at times.
> 
> Any idea what these errors mean?
> 
> netstat -a   on the server shows:
> 
> udp        0      0 *:1023                      *:*
> 
> is there a limit on how fast connections can be made?  We have been  
> adding a number of nodes recently, should we make setting changes on 
> 
> our server?
> 
> Thanks!
> 
> Brock Palen
> www.umich.edu/~brockp
> Center for Advanced Computing
> brockp at umich.edu
> (734)936-1985
> 
> 
> 
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-- 
David Beer | Senior Software Engineer
Adaptive Computing



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