[AG-DEV] ANL Bridge registry turned off ?

Jason Bell j.bell at cqu.edu.au
Mon Jun 11 20:20:51 CDT 2012


G'day all

With the recent DNS moves - do we need to restart our unicast bridges???

Thanks,
Jason.

-----Original Message-----
From: ag-dev-bounces at lists.mcs.anl.gov [mailto:ag-dev-bounces at lists.mcs.anl.gov] On Behalf Of David Allingham
Sent: Thursday, 7 June 2012 02:44 PM
To: Graeme Glen; Christoph Willing
Cc: ag-dev
Subject: Re: [AG-DEV] ANL Bridge registry turned off ?


Not sure if it'll help with testing, but I've just found out that there's a www.accessgrid.com, which still points to the old ANL server (and returns the original peers.txt with its "vv3.mcs.anl.gov:8030" entry.

Note that this will soon be redirected to the new site where www.accessgrid.org lives.

 David



>>> Christoph Willing <c.willing at uq.edu.au> 7/06/2012 11:25 am >>>

On 07/06/2012, at 11:17 AM, Graeme Glen wrote:

> Hi All,
>
> Restarted the Auckland Bridge (because lots of errors, couldn't 
> connect to the URL any more, unhealthy CPU usage around 60%).
>
> After restart no errors, you will hopefully see it in the new 
> registry.

Thanks Graeme,

I see the Auckland bridge again now.


In fact, after a "Find Additional Bridges", I now see a number of the "old" bridges again. I guess they have also been restarted. The list of bridges is now looking much more like it used to.


chris


>> -----Original Message-----
>> From: Christoph Willing [mailto:c.willing at uq.edu.au]
>> Sent: Thursday, 7 June 2012 12:52 p.m.
>> To: Lloyd Pearson
>> Cc: ag-dev; Graeme Glen
>> Subject: Re: [AG-DEV] ANL Bridge registry turned off ?
>>
>>
>> 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
>>
>>
>

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





More information about the ag-dev mailing list