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Almost ready to do the data transfer test to CMA



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>To: address@hidden
>cc: address@hidden,
>cc: address@hidden,
>cc: address@hidden,
>cc: address@hidden,
>cc: address@hidden,
>cc: address@hidden
>From: Doug Schuster <address@hidden>
>Subject: Re: [Fwd: Re: Re: Almost ready to do the data transfer test]
>Organization: UCAR/Unidata
>Keywords: 200608151617.k7FGHlqi026387

Manuel,

Do you have the following entry inside of ldmd.conf?

allow   ANY     tigge-ldm\.cma\.gov\.cn\.?$     .* #CMA ldm
allow   ANY     210\.73\.54\.   #CMA machines

Doug

On Aug 15, 2006, at 9:59 AM, Manuel Fuentes wrote:

> Hello there!,
>
> We are testing LDM connectivity between ECMWF and CMA and we seem to
> have problems. I can ldmping CMA's LDM from ECMWF but it seems the
> opposite doesn't work. Do you have any hint ?
>
> I include YangXin's e-mail below...
>
> Thanks in advance,
> Manuel
>
>
>
>
> -------- Original Message --------
> Subject: Re: Re: Almost ready to do the data transfer test
> Date: Tue, 15 Aug 2006 01:04:58 +0800
> From: <address@hidden>
> Organization: HPC
> To: address@hidden <address@hidden>
> CC: ÌïºÆ <address@hidden>, ÀɺéÁÁ <address@hidden>, baudouin  
> raoult
> <address@hidden>, David Ian Brown <address@hidden>, Doug
> Schuster <address@hidden>
> References: <address@hidden>
> <address@hidden>
> <address@hidden> <address@hidden>
> <address@hidden> <address@hidden>
>
> Dear Manuel Fuentes,
>
> It is a little bit strange that you can ldmping CMA with no problem
> while I cannot do it from us to ECMWF.
>
> Though our DNS / IP address mapping have changed, it should work OK as
> our network division told me, for your system can see
> "tigge-ldm.cma.gov.cn".
>
> On Jul 13, I successfully transfered nearly 3GB test data from
> tigge-ldm.ecmwf.int, so I am very confident that there should be  no
> problem between our site and ECMWF. I think ECMWF should have kept the
> same configuration regarding CMA. However, the fact is it does not  
> work,
> would you like give us any hints about what we should do next to solve
> this problem? Such as, do I need to change the REQUEST command in  
> ldmd.conf?
>
> My ldm server can start without error messages with the new pqact.conf
> from Doug, thanks.
>
> YangXin,
> Aug 15.
>
>       
>
> ======= 2006-08-11 16:58:44 ÄúÔÚÀ´ÐÅÖÐдµÀ£º=======
>
>> Hi YangXin,
>>
>> Well done! It works now...
>> ldm@tigge-ldm:~> ldmping tigge-ldm.cma.gov.cn
>> Aug 11 08:51:31 INFO:      State    Elapsed Port   Remote_Host
>> rpc_stat
>> Aug 11 08:51:32 INFO: RESPONDING   0.650371  388   tigge- 
>> ldm.cma.gov.cn
>>
>> Looking at our LDM logs, I see some entries related to your IP  
>> address,
>> but not your hostname:
>>
>> Aug 11 08:53:41 tigge-ldm rpc.ldmd[25348] INFO: gethostbyaddr: failed
>> for 210.73.54.24
>> Aug 11 08:53:41 tigge-ldm rpc.ldmd[25348] INFO: RPC buffer sizes for
>> 210.73.54.24: send=16384; recv=87380
>> Aug 11 08:53:41 tigge-ldm rpc.ldmd[25348] NOTE: Denying connection  
>> from
>> [210.73.54.24]
>>
>> Have you specified the hostname in ~/etc/ldmadmin-pl.conf ? I have
>> something like:
>> $hostname = "tigge-ldm.ecmwf.int";
>>
>>
>> Cheers,
>> Manuel
>>
>> address@hidden wrote:
>>> Hi, Manuel Fuentes,
>>>
>>> I eliminated a small problem in "/etc/hosts" and started the LDM  
>>> server, would you try ldmping once more?
>>>
>>> When I try the "ldmping 127.0.0.1", it responds.
>>>
>>> YangXin,
>>> Aug 11.
>>>
>>>     
>>>
>>> ======= 2006-08-11 16:02:14 ÄúÔÚÀ´ÐÅÖÐдµÀ£º=======
>>>
>>>> Hi Yangxin,
>>>>
>>>>
>>>>> I wait for some moments but no data have been received. Can we  
>>>>> start doing some test, using LDM to transfer data continuously,  
>>>>> simulating a real time operation?
>>>>>
>>>> We are sending data continuously. You can check the realtime  
>>>> statistics
>>>> from: http://tigge.ecmwf.int/ldm.html
>>>>
>>>>> In fact, the "ldmping" is still not successful, the output is  
>>>>> as the following:
>>>>>
>>>>> $ ldmping tigge-ldm.ecmwf.int
>>>>> Aug 11 07:32:12 INFO:      State    Elapsed Port    
>>>>> Remote_Host           rpc_stat
>>>>> Aug 11 07:32:12 INFO: Resolving tigge-ldm.ecmwf.int to  
>>>>> 193.61.196.74 took 0.007322 seconds
>>>>> Aug 11 07:32:12 ERROR:  ADDRESSED   0.643075    0   tigge- 
>>>>> ldm.ecmwf.int  RPC: Unable to receive; errno = Connection reset  
>>>>> by peer
>>>>> Aug 11 07:32:47 ERROR:      NAMED  10.000614    0   tigge- 
>>>>> ldm.ecmwf.int  can't contact portmapper: RPC: Timed out
>>>>> Aug 11 07:33:12 INFO: Resolving tigge-ldm.ecmwf.int to  
>>>>> 193.61.196.74 took 0.005182 seconds
>>>>> Aug 11 07:33:13 ERROR:  ADDRESSED   0.635871    0   tigge- 
>>>>> ldm.ecmwf.int  RPC: Unable to receive; errno = Connection reset  
>>>>> by peer
>>>>>
>>>>>
>>>> It can be a problem on your firewall. Does it allow incoming  
>>>> connections
>>>> ? I can ldmping our LDM:
>>>> ldm@tigge-portal:~> ldmping tigge-ldm.ecmwf.int
>>>> Aug 11 07:47:05 INFO:      State    Elapsed Port   Remote_Host
>>>> rpc_stat
>>>> Aug 11 07:47:05 INFO: RESPONDING   0.005960  388   tigge- 
>>>> ldm.ecmwf.int
>>>>
>>>> but I can't ping your LDM:
>>>> ldm@tigge-ldm:~> ldmping tigge-ldm.cma.gov.cn
>>>> Aug 11 07:55:15 INFO:      State    Elapsed Port   Remote_Host
>>>> rpc_stat
>>>> Aug 11 07:55:27 ERROR:      NAMED  12.336784    0   tigge- 
>>>> ldm.cma.gov.cn
>>>> can't contact portmapper: RPC: Timed out
>>>>
>>>>
>>>>> Maybe there is one reason should be considered, that is the DNS- 
>>>>> Name/Internet-IP-Address mapping of our LDM-Server has changed  
>>>>> recently. The network administrator told me the DNS-Name might  
>>>>> not be accessed thoughout the world immediately after the  
>>>>> change, maybe it need one day or more time for the entire  
>>>>> internet to synchronize it. Can you access "tigge- 
>>>>> ldm.cma.gov.cn" now?
>>>>>
>>>> It seems your hostname is recognised. If I try the IP address I  
>>>> get the
>>>> same problem:
>>>> ldm@tigge-portal:~> ldmping 210.73.54.24
>>>> Aug 11 07:59:24 INFO:      State    Elapsed Port   Remote_Host
>>>> rpc_stat
>>>> Aug 11 07:59:36 ERROR:      NAMED  12.326223    0    
>>>> 210.73.54.24  can't
>>>> contact portmapper: RPC: Timed out
>>>>
>>>> Can you try ldmping your LDM ?
>>>>
>>>> Cheers,
>>>> Manuel
>>>
>>> = = = = = = = = = = = = = = = = = = = =
>>>                     
>>>
>>> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ÖÂ
>>> Àñ£¡
>>>
>>>                             
>>> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡yangxin
>>> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡address@hidden
>>> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2006-08-11
>>>
>
> = = = = = = = = = = = = = = = = = = = =
>                       
>
> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡ÖÂ
> Àñ£¡
>
>                               
> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡yangxin
> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡address@hidden
> ¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡¡2006-08-15
>


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