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Support use of xrootd by HEP experiments

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Subject:
From:
Sami Lehti <[log in to unmask]>
Reply To:
Date:
2 Apr 2008 14:10:55 +0300 (EEST)Wed, 2 Apr 2008 14:10:55 +0300 (EEST)
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On Wed, 2 Apr 2008, Fabrizio Furano wrote:

> Hi Sami,
>
> [CC-ed the message to xrootd-l]
>
> I really do not understand what you mean with "default timeout 999999999 
> secs", I've never heard anything about this. Could you please be more 
> specific?
I was digging the TXNetFile code in hope of a solution, and i found 
this:
TXNetFile::CreateXClient
// Set the timeout (default 999999999 secs, i.e. far, far in the future)
    gSystem->Setenv("XRDCLIENTMAXWAIT", 
Form("%d",TFile::GetOpenTimeout()));


> Have you verified that the file is not corrupted?
The file is corrupted, i checked that by copying the file from the dCache 
server. How can i check if it is corrupted without opening the file?
It seems that TFile::Open("corruptedFile.root") works, but 
TFile::Open("root://.../corruptedFile.root") hangs.

> If you are sure about those, to give some support I need a logfile telling 
> me what's happening, possibly done with the latest ROOT (should be 5.19.02b, 
> which bundles very recent stuff).
I'm using root version 5.18.00, retried with 5.19.02, i couldnt find 
5.19.02b in /afs/cern.ch/sw/lcg/external/root

Same effect with 5.19.02 also.

> gEnv->setValue("XNet.Debug", 3)    [this switches the XrdClient debug ON]
I couldnt get this working:
root [0]
Processing test.cxx...
Error: Can't call TEnv::setValue("XNet.Debug",3) in current scope 
test.cxx:2:
Possible candidates are...
*** Interpreter error recovered ***
root [1] .q

I've copied the test.cxx in my public 
/afs/cern.ch/user/s/slehti/public/test.cxx
The dCache data is world readable, so anyone can try the script.

Cheers,
Sami



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