perfSONAR User Q&A and Other Discussion

["Lixin Liu" <>]

Hi Jason,

Sorry I should mention that the latency host is down right now.
Someone will take a look at the machine itself. Will let you
know when it comes up.

So looks like the bandwidth host is registered, but how long I
need to wait to see its services listed in "Global Performance
Services"?

I noticed these two sites has one thing in common: SELinux is
enabled. I disabled it, but not sure if that is root cause of
our service registration issue.

Thanks,

Lixin.


> -----Original Message-----
> From: Jason Zurawski 
> [mailto:]
> Sent: September-27-13 10:26 AM
> To: Lixin Liu
> Cc: 
> ;
>  Performance Node Users
> Subject: Re: [perf-node-users] Re: [perfsonar-user] LSRegistrationDaemon
> duplicate checksum lookup/host/ error
>
> 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>