Hi Lukasz,
I'm sorry, but this is just not true... I mean the part where ROOT only
uses v4 these days.
The latest ROOT 5 version that we have on CVMFS (5.34/25), which (the
binary) I think came from the ROOT webpage, is definitely built against
XRootD 3. Because if I try to set it up with any version of XRootD 4 in
my environment, I get this:
root [0] f = TFile::Open( "root://...", "READ" );
dlopen error: libXrdMain.so.1: cannot open shared object file: No such
file or directory
Load Error: Failed to load Dynamic link library
/cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/5.34.25-x86_64-slc6-gcc48-opt/lib/libNetxNG.so
Error in <TCint::AutoLoad>: failure loading library libNetxNG.so for
class TNetXNGSystem
Error in <TPluginHandler::SetupCallEnv>: class TNetXNGSystem not found
in plugin NetxNG
Error in <TPluginHandler::SetupCallEnv>: class TNetXNGFile not found in
plugin NetxNG
When setting up 3.3.6 alongside of it, it works fine.
The same goes for the ROOT build under
/afs/cern.ch/sw/lcg/app/releases/ROOT/5.34.25/. Mind you, where is an
XRootD 4.X.Y installation under /afs/cern.ch/sw/?
So you should be much more careful with declaring that we are using out
of date code by choice. :-(
Attila
-----------------------------------------------------
Attila Krasznahorkay [log in to unmask]
CERN PH-ADP-OS Phone: +41-22-76 71180
The ATLAS Collaboration Room: 40/3-D06
-----------------------------------------------------
On 18/02/15 17:00, Lukasz Janyst wrote:
> Hello everyone,
>
> so to sum up. The bug that you're referring to has been reported
> long ago by CMS (Brian) and fixed in xrootd-4 series that CMS is was
> using at the time. Then, unsurprisingly, LHCb hit the same bug and we
> decided that the best way to proceed is to hot-patch the LCG 3.3.6
> release, which was kindly done by Benedikt. From the xrootd standpoint
> the 3.3.x branch is dead and all the recent ROOT releases just use
> xrootd 4.
>
> Cheers,
> Lukasz
>
> On 02/18/2015 04:26 PM, Benedikt Hegner wrote:
>> Hi Asoka,
>>
>> thanks. I confirm the patch (*) is in. I added it to the procedure
>> August 4th and re-build xrootd August 13.
>>
>> Cheers,
>> Benedikt
>>
>> (*)
>> diff --git a/src/XrdCl/XrdClXRootDMsgHandler.cc
>> <http://XrdClXRootDMsgHandler.cc> b/src/XrdCl/XrdClXRootDMsgHandler.cc
>> <http://XrdClXRootDMsgHandler.cc>
>> index 5eb3128..5a329e6 100644
>> --- src/XrdCl/XrdClXRootDMsgHandler.cc <http://XrdClXRootDMsgHandler.cc>
>> +++ src/XrdCl/XrdClXRootDMsgHandler.cc <http://XrdClXRootDMsgHandler.cc>
>> @@ -783,6 +783,12 @@ namespace XrdCl
>>
>>
>> //------------------------------------------------------------------------
>>
>> if( !st.IsOK() )
>> return st;
>> +
>> +
>>
>> //------------------------------------------------------------------------
>>
>> + // If we are not done reading the header, return back to the
>> event loop.
>> +
>>
>> //------------------------------------------------------------------------
>>
>> + if( st.IsOK() && st.code != suDone )
>> + return st;
>> }
>>
>>
>>
>> //--------------------------------------------------------------------------
>>
>> --
>>
>> On 18 Feb 2015, at 16:18, Asoka De Silva <[log in to unmask]
>> <mailto:[log in to unmask]>> wrote:
>>
>>> Thanks - I’ll add a pdf snapshot of the ticket for the others then …
>>> please see attached.
>>>
>>>
>>>
>>>
>>> regards,
>>> Asoka
>>>
>>> > On Feb 18, 2015, at 7:15 AM, Benedikt Hegner
>>> <[log in to unmask] <mailto:[log in to unmask]>> wrote:
>>> >
>>> > Hi Asoka,
>>> >
>>> > (let me add Patricia)
>>> >
>>> > non-ATLAS members don’t have access to that ticket…
>>> >
>>> > Cheers,
>>> > Benedikt
>>> >
>>> >
>>> > On 18 Feb 2015, at 16:10, Asoka De Silva <[log in to unmask]
>>> <mailto:[log in to unmask]>> wrote:
>>> >
>>> >> Hi,
>>> >>
>>> >> Can you please look at this thread
>>> >>
>>> >>https://its.cern.ch/jira/browse/ATLASG-3
>>> >>
>>> >> where LCG seems to have modified xrootd 3.3.6 or a bug fix. I
>>> was wondering if you can put these changes in a release 3.3.7 so that
>>> future root versions will be able to use it ?
>>> >>
>>> >> Many thanks !
>>> >>
>>> >> regards,
>>> >> Asoka
>>> >>
>>> >>
>>> -----------------------------------------------------------------------
>>> >> Adr: ATLAS Tier-1, TRIUMF, 4004 Wesbrook Mall,
>>> >> Vancouver B.C. V6T 2A3, Canada
>>> >> Url:http://trshare.triumf.ca/~desilva/Personal
>>> >> Tel: (604) 222-7496
>>> >> Fax: (604) 222-1074
>>> >>
>>> -----------------------------------------------------------------------
>>> >>
>>> >>
>>> >>
>>> >>
>>> >
>>> >
>>>
>>> -----------------------------------------------------------------------
>>> Adr: ATLAS Tier-1, TRIUMF, 4004 Wesbrook Mall,
>>> Vancouver B.C. V6T 2A3, Canada
>>> Url: http://trshare.triumf.ca/~desilva/Personal
>>> Tel: (604) 222-7496
>>> Fax: (604) 222-1074
>>> -----------------------------------------------------------------------
>>>
>>>
>>>
>>>
>>> <[ATLASG-3] New p1838 Derivations need several attempts to read - CERN
>>> Central Jira.pdf>
>>
>>
>> ------------------------------------------------------------------------
>>
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