Atlas-connect-l mailing list

[Frederick Luehring <luehring AT indiana.edu>]

Hi Rob,

   I confirm that the two errors that Harinder lists ("failed to read header"
and "session not found") are harmless. For sure there is a version of XRootD
being developed that suppresses by default the "failed to read header"
messages as they are no longer of use to normal user.

Fred

On 9/12/14 3:10 PM, Rob Gardner wrote:
> Harinder,
> 
> I believe this is the well-known but innocuous error from Xrootd itself.  I
> have Andy in cc to confirm.
> 
> Rob
> 
> 
> On Sep 12, 2014, at 11:30 AM, Dr. Harinder Singh Bawa
> <harinder.singh.bawa AT gmail.com <mailto:harinder.singh.bawa AT gmail.com>> 
> wrote:
> 
>> Excuse me of my previous email. I realised that I could actually read the
>> files but not sure was getting warning messages. My script could actually
>> ran over and gave me the output. The only thing is that the reading of file
>> is not consistent, I mean it takes more than 1 trial to read the file. Like
>> below:
>>
>>
>> *****************************************************
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000035.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000035.root.1>
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000035.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000035.root.1>
>> retry reading 1
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000057.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000057.root.1>
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000057.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000057.root.1>
>> retry reading 1
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000118.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000118.root.1>
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000118.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000118.root.1>
>> retry reading 1
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000068.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000068.root.1>
>>
>>
>> & server error messages in my error file as:
>>
>> 140911 18:40:24 25755 Xrd: XrdClientMessage::ReadRaw: Failed to read header
>> (8 bytes).
>> Info in <D3PD::TrigConfigSvcD3PD::Initialize>: Loaded configuration: SMK:
>> 1487, L1PSK: 8979, HLTPSK: 7238
>> Info in <D3PD::TrigConfigSvcD3PD::Initialize>: Loaded configuration: SMK:
>> 1487, L1PSK: 8979, HLTPSK: 7238
>> 140911 18:47:24 26415 Xrd: XrdClientMessage::ReadRaw: Failed to read header
>> (8 bytes).
>> 140911 18:48:41 25741 Xrd: XrdClientMessage::ReadRaw: Failed to read header
>> (8 bytes).
>> 140911 18:48:53 25710 Xrd: CheckErrorStatus: Server
>> [agh3.atlas.unimelb.edu.au:11000 <http://agh3.atlas.unimelb.edu.au:11000/>]
>> declared: session not found(error code: 3011)
>>
>>
>>
>> Harinder
>>
>> root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000068.root.1
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SLIMSMQCD.01196851._000068.root.1>
>> retry reading 1
>>
>>
>>
>> On Thu, Sep 11, 2014 at 9:29 PM, Dr. Harinder Singh Bawa
>> <harinder.singh.bawa AT gmail.com <mailto:harinder.singh.bawa AT gmail.com>> 
>> wrote:
>>
>>     Hello,
>>
>>     I am wondering if this is FAXBOX problem or dataset/site problem. In 
>> one
>>     example code, I am could read the dataset using xrootd but In another
>>     code, I am getting following error. (The diff is only input dataset).
>>     BTW I can run interactively with no problem using xrootd. When I submit
>>     the job in atlasconnect: I am getting following error:
>>
>>     [hbawa@login SkimAndSlimD3PDs_Fresno]$ vi error/Example_Skim.error.1
>>     TClass::TClass:0: RuntimeWarning: no dictionary for class
>>     pair<string,string> is available
>>     140825 16:17:17 19181 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:17:41 19185 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:18:17 19190 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:18:47 19331 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:19:47 19337 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:20:03 19342 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:20:08 19163 Xrd: Connect: can't open connection to
>>     [mardisk12.in2p3.fr:1095 <http://mardisk12.in2p3.fr:1095/>]
>>     140825 16:20:08 19163 Xrd: XrdNetFile: Error creating logical 
>> connection
>>     to mardisk12.in2p3.fr:1095 <http://mardisk12.in2p3.fr:1095/>
>>     140825 16:20:08 19163 Xrd: GoToAnotherServer: Error connecting to
>>     [mardisk12.in2p3.fr:1095 <http://mardisk12.in2p3.fr:1095/>
>>     140825 16:20:17 19345 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:20:37 19163 Xrd: Connect: can't open connection to
>>     [xrdfed08.cern.ch:1094 <http://xrdfed08.cern.ch:1094/>]
>>     140825 16:20:37 19163 Xrd: XrdNetFile: Error creating logical 
>> connection
>>     to xrdfed08.cern.ch:1094 <http://xrdfed08.cern.ch:1094/>
>>     140825 16:20:37 19163 Xrd: GoToAnotherServer: Error connecting to
>>     [xrdfed08.cern.ch:1094 <http://xrdfed08.cern.ch:1094/>
>>     140825 16:20:43 19349 Xrd: XrdClientMessage::ReadRaw: Failed to read
>>     header (8 bytes).
>>     140825 16:20:53 19163 Xrd: SendGenCommand: Too many redirections for
>>     request  kXR_open. Aborting command.
>>     140825 16:20:53 19163 Xrd: Open: Error opening the file
>>     /atlas/rucio/data12_8TeV:NTUP_SMWZ.01122550._000047.root.2 on host
>>     dcdum01.aglt2.org:1094 <http://dcdum01.aglt2.org:1094/>
>>     Error in <TXNetFile::CreateXClient>: open attempt failed on
>>     
>> root://xrootd.aglt2.org//atlas/rucio/data12_8TeV:NTUP_SMWZ.01122550._000047.root.2
>>     
>> <http://xrootd.aglt2.org//atlas/rucio/data12_8TeV:NTUP_SMWZ.01122550._000047.root.2>
>>     Traceback (most recent call last):
>>       File "slimming_d3pd.py", line 965, in <module>
>>         sys.exit(main())
>>       File "slimming_d3pd.py", line 673, in main
>>         raise RuntimeError("no such file [%s]" % fname)
>>     RuntimeError: no such file
>>     
>> [root://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SMWZ.01122550._000047.root.2
>>     
>> <http://xrootd.aglt2.org:1094//atlas/rucio/data12_8TeV:NTUP_SMWZ.01122550._000047.root.2>]
>>
>>     -- 
>>     /*Dr. Harinder Singh Bawa*/
>>
>>                                               
>>     [web <http://www.fresnostate.edu/csm/physics/>][facebook
>>     <https://www.facebook.com/FresnoStPhysics>][youtube
>>     <http://www.youtube.com/FresnoStPhysics>][twitter
>>     <https://twitter.com/fresnostphysics>]
>>     California State University, Fresno Logo
>>
>>
>>
>>
>> -- 
>> /*Dr. Harinder Singh Bawa*/
>>
>>                                           
>> [web <http://www.fresnostate.edu/csm/physics/>][facebook
>> <https://www.facebook.com/FresnoStPhysics>][youtube
>> <http://www.youtube.com/FresnoStPhysics>][twitter
>> <https://twitter.com/fresnostphysics>]
>> California State University, Fresno Logo
>>
> 
> 
> 
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-- 
Fred Luehring Indiana U. HEP mailto:luehring AT indiana.edu  +1 812 855 1025 IU
http://cern.ch/Fred.Luehring mailto:Fred.Luehring AT cern.ch +41 22 767 1166 CERN
http://cern.ch/Fred.Luehring/Luehring_pub.asc             +1 812 391 0225 GSM