Hi again,
I'd also like to know how this scheme is supposed to work on the storage
element.
thanks
cheers
alessandra
On Tue, 18 Oct 2005, Alessandra Forti wrote:
> Hi Oscar,
>
> is there any document describing this job-pool-account association scheme?
>
> I'll soon have a ~2000 cpus. The idea of creating and managing
> ~8000 accounts only for LHC + 4000 for babar and dzero + all the other VOs I
> have enabled makes me a bit nervous.
>
> thanks
>
> cheers
> alessandra
>
>
> On Tue, 18 Oct 2005, Oscar Koeroo wrote:
>
>> Hi,
>>
>> In GLite there is the WorkSpace Service (from Globus) which will enable
>> you to give lifetime properties to a poolaccount.
>> It uses LCMAPS as a backend.
>>
>> So it is in the pipeline to be deployed.
>>
>>
>> cheers,
>>
>> Oscar
>>
>>
>> Brew, CAJ (Chris) wrote:
>>
>>> Hi,
>>>
>>> Doesn't GUMS from BNL (http://grid.racf.bnl.gov/GUMS/index.html) work
>>> something like this. I seem to recall it creates accounts in a single
>>> pool on the fly and assigns them the right properties for the VO. It
>>> doesn't seem to do account recycling though but then no-one's ever
>>> really solved all the security problems with that anyway.
>>>
>>> Yours,
>>> Chris.
>>>
>>>
>>>> -----Original Message-----
>>>> From: LHC Computer Grid - Rollout
>>>> [mailto:[log in to unmask]] On Behalf Of Jeff Templon
>>>> Sent: 18 October 2005 11:07
>>>> To: [log in to unmask]
>>>> Subject: Re: [LCG-ROLLOUT] number of pool accounts per VO
>>>>
>>>> Valentin Vidic wrote:
>>>>
>>>>> On Tue, Oct 18, 2005 at 09:21:33AM +0200, Tim Bell wrote:
>>>>>
>>>>>
>>>>>> (which is currently at 15,000 users). One of the operations was
>>>>>> taking
>>>>>> 8 minutes since it was doing an O(n**2) lookup on the users.
>>>>>>
>>>>> nscd or libnss-db can be used to speed up the lookups.
>>>>>
>>>>> But here is another idea: we use LDAP and create/delete
>>>> accounts on the fly.
>>>>
>>>> hmm, but how do you keep your accounting data, and permissions on
>>>> files, straight? creating accounts on the fly OK, but deleting them?
>>>>
>>>> JT
>>>>
>>>>
>>
>
>
--
********************************************
* Dr Alessandra Forti *
* Technical Coordinator - NorthGrid Tier2 *
* http://www.hep.man.ac.uk/u/aforti *
********************************************
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