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Support use of xrootd by HEP experiments

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Subject:
From:
Matevz Tadel <[log in to unmask]>
Reply To:
Support use of xrootd by HEP experiments <[log in to unmask]>
Date:
Mon, 1 Oct 2012 12:38:15 -0700
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Hi,

I'm finally going to implement this at UCSD. Brian sort of mentioned that this 
might be possible by just running two cmsd-s at the redirector ... one for 
haddop/shared space and another one for the nfs space. Is this really possible?

So, I'd need to use xrootd.export, oss.export in the original xrootd config and 
use cms.export (or all.export) for the additional cmsd. Looking at the code, 
"oss" does not seem to take "oss.export" version, only "all.export" ... is this 
even relevant on the redirector? That is, is just "xrootd.export" sufficient?

Alternatively, I will run another xrootd/cmsd pair (on another port) with a 
static prefix-based redirect from the original redirector.

Matevz

On 04/24/12 20:48, Andrew Hanushevsky wrote:
> Hi Matevz,
>
> Correct. There is no way of having a redirector treat different paths as shared
> or not shared. So, you do need two redirectors for this.
>
> Andy
>
> On Tue, 24 Apr 2012, Matevz Tadel wrote:
>
>> Hi,
>>
>> I have a redirector that fronts two kind of servers:
>> a) hadoop, shared file-system for /store/ prefix;
>> b) nfs servers, share nothing, on other prefixes.
>>
>> Is there a way to tell the redirector that /store maps to a distributed file
>> system on the wildcard-enumerated list of nodes?
>>
>> I assume the answer is no and that I should have two redirectors for this to
>> work.
>>
>> Matevz
>>
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