[AG-DEV] ANL Bridge registry turned off ?

Christoph Willing c.willing at uq.edu.au
Wed Jun 6 19:52:01 CDT 2012


On 07/06/2012, at 10:20 AM, Lloyd Pearson wrote:

> Thanks Chris,
>
> Currently using only http://www.ap-accessgrid.org/registry/peers.txt  
> I get only the APAG bridge.
>
> Deleting that http://www.ap-accessgrid.org/registry/peers.txt and  
> using only http://www.accessgrid.org/registry/peers.txt I get 7  
> bridges but not APAG.
>
> UQ-RCC
> ARCS-Melbourne
> Westgrid
> LSU
> UPSAG
> And 2 x NDHU bridges which are disabled.
>
> Using both entries I get APAG as well to give a total of 8 bridges.

Great - all the above is consistent with how I think it should work.


> (Graeme Glen looks after the Auckland bridge, so I'm sure he'll see  
> this discussion and hopefully restart.

I'm cc'ing Graeme too ...


chris


> - There are a few uni's in NZ that are running unicast so they'll  
> probably raise a question soon.)
>
> Regards,
> Lloyd Pearson
> AVC Operator
> University of Otago
> Ph +64 3 479 8997
> lloyd.pearson at otago.ac.nz
>
>
> -----Original Message-----
> From: Christoph Willing [mailto:c.willing at uq.edu.au]
> Sent: Thursday, 7 June 2012 11:18 a.m.
> To: Lloyd Pearson
> Cc: ag-dev
> Subject: Re: [AG-DEV] ANL Bridge registry turned off ?
>
>
> On 07/06/2012, at 8:02 AM, Lloyd Pearson wrote:
>
>> Hello team,
>>
>> Currently I get 7 bridges after a purge with only
>> http://www.accessgrid.org/registry/peers.txt
>> as a bridge registry.
>> APAG
>> UQ-RCC
>> ARCS-Melbourne
>> Westgrid
>> LSU
>> And 2 x NDHU bridges which are disabled.
>>
>> Using only http://www.ap-accessgrid.org/registry/peers.txt the result
>> is the same.
>
> Lloyd,
>
> I think there's some sort of timeout or ageing mechanism such that  
> if you did a purge before removing www.accessgrid.org/... and then  
> another purge, the list of bridges will remain the same as before. I  
> think if you were to wait 5 (or 10, or 15, whatever ....), another  
> purge would produce fewer bridges. Also, I think you'll need to Save  
> after deletions to the peers.txt entries.
>
>>
>> Another PC which has not been purged for several weeks currently  
>> lists
>> about 26 bridges.
>
> Yes we've found that too. As soon as you do a purge on that machine,  
> it will look through the bridge registries for bridges to test and  
> add to the list of bridges - also removing bridges not registered  
> with whatever registries you have enabled (bearing in mind the  
> ageing mechanism for remembering them).
>
>
>> The Auckland bridge doesn't show on the recently purged PC, even
>> though it appears on the unpurged PC and it does appear to be useable
>> when selected. (That PC normally runs multicast.)
>
> Most of the previous bridges are still running and will work if  
> their existence is still recognised e.g. by unpurged VenueCLients. I  
> think they probably need to be restarted so that they're registered  
> with the new registry. Do you know who runs that bridge to ask them  
> to restart it?
>
>
> chris
>
>
>> -----Original Message-----
>> From: ag-dev-bounces at lists.mcs.anl.gov
>> [mailto:ag-dev-bounces at lists.mcs.anl.gov
>> ] On Behalf Of Christoph Willing
>> Sent: Thursday, 7 June 2012 9:25 a.m.
>> To: Todd Zimmerman
>> Cc: ag-dev
>> Subject: Re: [AG-DEV] ANL Bridge registry turned off ?
>>
>>
>> On 07/06/2012, at 12:33 AM, Todd Zimmerman wrote:
>>
>>> On 06/06/2012 03:52 AM, Christoph Willing wrote:
>>>>
>>>> Until the DNS is transferred and we can create an entry for
>>>> vv3.accessgrid.org, I wonder if a plain IP address would work there
>>>> instead? Todd, could we try this by you changing the peers.txt file
>>>> to be:
>>>> 130.102.78.188:8030
>>>> please?
>>>
>>> Done
>>
>> Thanks. It seems to have worked; I see a lot more bridges now -
>> although not yet as many as in the old days ...
>>
>>
>> chris
>>
>>
>> Christoph Willing              +61 7 3365 8316
>> Research Computing Centre
>> University of Queensland
>>
>>
>>
>
> Christoph Willing              +61 7 3365 8316
> Research Computing Centre
> University of Queensland
>
>
>

Christoph Willing              +61 7 3365 8316
Research Computing Centre
University of Queensland





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