perfSONAR User Q&A and Other Discussion

[Jason Zurawski <>]

Hi Lixin;

Looking in one of the global servers. I do see your bdw host:

http://ndb1.internet2.edu:8090/lookup/records?host-name=bdw-umanitoba.westgrid.ca

Unfortunately you are correct in that the latency host has not registered, I 
don't see that anywhere.  Can you send the latest log message for 
lat-umanitoba.westgrid.ca again?  Everything after the point where you did 
the removal of the db file and the restart. 

Thanks;

-jason

On Sep 27, 2013, at 1:02 PM, "Lixin Liu" 
<>
 wrote:

> Hi Jason,
> 
> Thanks for your information.
> 
> I rebooted two hosts (in University of Saskatoon) and they are now
> showing up in the list of Global Services.
> 
> I still have issue with two other hosts (in University of Manitoba).
> I followed your suggestion. It has been more than two hours, but I
> still do not see this host in the list. However, there was a network
> (BGP) problem early today that may affect the registration.
> 
> Here is the log file (hostname bdw-umanitoba.westgrid.ca).
> 
> The NTP server on the host you mentioned was changed by the local admin
> to use local NTP servers, but there are only two servers in the config.
> I added two more and should be fine now.
> 
> Thanks,
> 
> Lixin.
> 
>> -----Original Message-----
>> From: Jason Zurawski 
>> [mailto:]
>> Sent: September-27-13 6:19 AM
>> To: Lixin Liu
>> Cc: 
>> ;
>>  Performance Node Users
>> Subject: Re: [perf-node-users] Re: [perfsonar-user] LSRegistrationDaemon
>> duplicate checksum lookup/host/ error
>> 
>> And naturally I meant "rm -f
>> /var/lib/perfsonar/ls_registration_daemon/lsKey.db" for the cache file …
>> 
>> Thanks;
>> 
>> -jason
>> 
>> On Sep 27, 2013, at 9:17 AM, Jason Zurawski 
>> <>
>>  wrote:
>> 
>>> Hi Lixin;
>>> 
>>> In looking at the logs, we don't see anything out of the ordinary, the
>> 'duplicate' message you see is actually just unfortunate wording on our 
>> part
>> - it means 'renew' the registration instead of making a new one.  Since 
>> you
>> noted you changed DNS/IP, it may be an issue of a stake cache.  Try the
>> following steps:
>>> 
>>>> sudo /etc/init.d/ls_registration_daemon stop
>>>> /var/lib/perfsonar/ls_registration_daemon/lsKey.db
>>>> sudo /etc/init.d/ls_registration_daemon start
>>> 
>>> 
>>> This will stop the service, delete the local db, and then start it all
>> over.  After a couple of hours the information should show up, or at a
>> minimum the logs will let us know if there is something else locally bad
>> that is going on.
>>> 
>>> As an aside, it appears that your NTP is not configured, some of the 
>>> tools
>> may not work until that is fixed.  You may want to run the NTP 
>> configuration
>> script again.
>>> 
>>> Thanks;
>>> 
>>> -jason
>>> 
>>> On Sep 26, 2013, at 3:43 PM, "Lixin Liu" 
>>> <>
>>>  wrote:
>>> 
>>>> Sorry I didn’t realize that the link is password protected and I
>>>> already logged as admin.
>>>> 
>>>> Here is the log.
>>>> 
>>>> Thanks,
>>>> 
>>>> Lixin.
>>>> 
>>>>> -----Original Message-----
>>>>> From: 
>>>>> 
>>>>>  [
>>>>> ]
>>>>>  On Behalf Of Lixin Liu
>>>>> Sent: September-26-13 12:36 PM
>>>>> To: 
>>>>> 
>>>>> Subject: [perfsonar-user] LSRegistrationDaemon duplicate checksum
>>>>> lookup/host/ error
>>>>> 
>>>>> Hi,
>>>>> 
>>>>> On a number of our perfSONAR hosts, we get
>>>>> 
>>>>> perfSONAR_PS::LSRegistrationDaemon::Base::find_duplicate - Found
>> duplicate
>>>>> checksum lookup/host
>>>>> 
>>>>> error and hosts do not show up in "Global Service and Data View".
>>>>> These cases may be related to the IP and DNS changes. But I think
>>>>> hosts are configured correctly.
>>>>> 
>>>>> How do I correct the problem?
>>>>> 
>>>>> You can see the log from this link:
>>>>> 
>>>>> https://lat-
>>>>> umanitoba.westgrid.ca/toolkit/admin/logs/ls_registration_daemon.log
>>>>> 
>>>>> Thanks,
>>>>> 
>>>>> Lixin.
>>>>> 
>>>>> 
>>>>> =======================
>>>>> Lixin Liu
>>>>> IT Services
>>>>> Simon Fraser University
>>>> 
>>>> <ls_registration_daemon.log>
> <ls_registration_daemon.log>