Re: [ldm-users] diagnosing problem when ldmping works one-way (not both ways)

  • To: Steve Emmerson <emmerson@xxxxxxxx>
  • Subject: Re: [ldm-users] diagnosing problem when ldmping works one-way (not both ways)
  • From: Donna Cote <d-cote@xxxxxxxx>
  • Date: Tue, 7 Jun 2016 10:12:23 -0500
Thanks Steve, indeed port 388 appears to not be open on the earthdata host.

Wish me a quick response from IT in getting 388 open!!
On Jun 6, 2016 11:43 AM, "Steve Emmerson" <emmerson@xxxxxxxx> wrote:

> Donna,
>
> Use telnet(1) to verify that each host can contact the LDM port on the
> other:
>
> On Earthdata:
>
> telnet curio 388
>
> On Curio:
>
> telnet earthdata 388
>
> (You should use the fully-qualified hostnames for each to reduce DNS
> issues). If one of them doesn't work and both LDM-s are running, then
> something is blocking the TCP connection.
>
> Regards,
> Steve Emmerson
>
> On Sun, Jun 5, 2016 at 1:41 PM, Donna Cote <d-cote@xxxxxxxx> wrote:
>
>> I have recently started up an LDM server for the sole purpose of
>> gathering and holding rtstats data for our relay, cluster and storage LDM
>> systems.
>>
>> The new LDM is on our host called earthdata. Now, I can ssh, scp, and
>> ping just fine between our systems but ldmping on any of our LDM servers
>> gives me a "SVC_UNAVAIL" message.
>>
>> All of our LDM is version 6.12.14. I have checked the exec entry in the
>> ldmd.conf file. I have checked the allow and request entries. I have
>> restarted LDM on each system. Still, curoi - to - earthdata is
>> "SVC_UNAVAIL" while earthdata - to - curoi is "RESPONDING" just fine. With
>> the notifyme utility, I see no rtstats data getting to earthdata.
>>
>> Any ideas on what to check for and how I could fix this?
>>
>> Thanks,
>> Donna
>>
>> > [ldm@curoi ~]$ ldmping earthdata
>>
>> > Jun 05 04:03:46 ulog INFO:      State    Elapsed Port   Remote_Host
>>       rpc_stat
>> > Jun 05 04:03:46 ulog INFO: Resolving earthdata to 128.194.165.79 took
>> 0.000851 seconds
>> > Jun 05 04:03:56 ulog ERROR: SVC_UNAVAIL  10.000997    0   earthdata
>>  h_clnt_create(earthdata): Timed out while creating connection
>> > Jun 05 04:04:21 ulog ERROR:  ADDRESSED   0.000002    0   earthdata
>>  h_clnt_create(earthdata): Timed out while creating connection
>> > ^C
>>
>> >
>>
>> > [ldm@curoi ~]$ grep -w earthdata etc/ldmd.conf
>> > exec "rtstats -f ANY -h earthdata.tamu.edu"
>> > allow ANY ^((earthdata)|(earthdata\.tamu\.edu))$
>> > [ldm@curoi ~]$
>>
>>
>> >
>> >
>>          ----------------------------------
>>
>>
>> >
>> > [ldm@earthdata ~]$ ldmping curoi
>> > Jun 05 04:03:23 ulog INFO:      State    Elapsed Port   Remote_Host
>>       rpc_stat
>> > Jun 05 04:03:23 ulog INFO: Resolving curoi to 128.194.165.100 took
>> 0.001789 seconds
>> > Jun 05 04:03:23 ulog INFO: RESPONDING   0.004038  388   curoi
>> > Jun 05 04:03:48 ulog INFO: RESPONDING   0.000335  388   curoi
>> > ^C
>> > >
>> > > [ldm@earthdata ~]$ > grep curoi etc/ldmd.conf
>> > > request ANY "^rtstats" curoi.tamu.edu
>> > > allow ANY ^((curoi)|(curoi\.tamu\.edu))$
>> > > [ldm@earthdata ~]$
>>
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