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[LDM #LXP-916564]: ldmping

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  • Subject: [LDM #LXP-916564]: ldmping
  • Date: Tue, 14 Apr 2009 13:44:13 -0600
Michael,

> Some additional info...if I run ldmping, eventually the connection responds 
> but after several time-outs.
> 
> [ldm@webdata-1 etc]$ ldmping ldm-11.crh.noaa.gov
> Apr 14 18:05:12 INFO:      State    Elapsed Port   Remote_Host           
> rpc_stat
> Apr 14 18:05:12 INFO: Resolving ldm-11.crh.noaa.gov to 204.227.126.194 took 
> 0.000395 seconds
> Apr 14 18:05:22 ERROR:   H_CLNTED  10.000252  388   ldm-11.crh.noaa.gov  
> select: RPC: Timed out
> Apr 14 18:05:57 ERROR:   H_CLNTED  10.000015  388   ldm-11.crh.noaa.gov  
> select: RPC: Timed out
> Apr 14 18:06:32 ERROR:   H_CLNTED  10.000142  388   ldm-11.crh.noaa.gov  
> select: RPC: Timed out
> Apr 14 18:06:57 INFO: RESPONDING   0.000164  388   ldm-11.crh.noaa.gov
> Apr 14 18:07:22 INFO: RESPONDING   0.000175  388   ldm-11.crh.noaa.gov

Very odd problem.  I suspect a networking problem (e.g., DNS
server, firewall IP rules).

It looks like your TCP stack is set-up for a 10 second timeout.
That seems a little short (30 seconds is more reasonable).

Can you ping(1) ldm-11 from webdata-1?  How long does it take?

Please send me the output from the command "ldmping localhost"
on the system on which it doesn't work.  Give the output two
minutes to accumulation.

Regards,
Steve Emmerson

Ticket Details
===================
Ticket ID: LXP-916564
Department: Support LDM
Priority: Normal
Status: Closed