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Hi Carlos, is there a way I could access your server from CERN to test that? Cheers, Lukasz On Tue, Sep 21, 2010 at 1:55 PM, Carlos Osuna <[log in to unmask]> wrote: > Hello > > I am using the xrootd door of a dcache storage (1.9.5). With xrdcp I dont > have any troubles, but when using root as a client (v5.26) that requests > data through xrootd protocol I get errors randomly. > > I reproduce the errors in root by simply creating a TChain of files and for > example calling the method GetEntries(). > > Error in <TXNetFile::CreateXClient>: open attempt failed on > root://xrootd.ifae.es//pnfs/pic.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc09_7TeV.107653.AlpgenJimmyZeeNp3_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107653.AlpgenJimmyZeeNp3_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD.D3PD._00001.root > > If I turn on debugging on the client, I get more information with an error > like: > > 100917 20:49:24 001 Xrd: CheckErrorStatus: Server [dcgftp12.ifae.es:1094] > declared: OpenRequest different from the one the redirector got(error code: > 3000) > > Has anybody already experienced this problem or can anyone help me to better > understand this error message? > > thanks, Carlos > > the full log. > > 100917 20:49:24 001 Xrd: TakeUrl: Host: dcgftp12.ifae.es > 100917 20:49:24 001 Xrd: TakeUrl: Port: 1094 > 100917 20:49:24 001 Xrd: GetAccessToSrv: Ok: the server on > [dcgftp12.ifae.es:1094] is an xrootd redirector. > 100917 20:49:24 001 Xrd: GetAccessToSrv: Reusing physical connection to > server [dcgftp12.ifae.es:1094]). > Open Access to server granted. > Open Opening the remote file > /pnfs/ifae.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_ > s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD.D3PD._00001.root > 100917 20:49:24 001 Xrd: SendGenCommand: Sending command Open > 100917 20:49:24 001 Xrd: ReadPartialAnswer: Reading a XrdClientMessage from > the server [dcgftp12.ifae.es:1094]... > 100917 20:49:24 001 Xrd: ReadPartialAnswer: Server [dcgftp12.ifae.es:1094] > answered [kXR_redirect] (4004) > 100917 20:49:24 001 Xrd: Disconnect: LogConnID: 9 destroyed > 100917 20:49:24 001 Xrd: HandleServerError: Redir count=1 > 100917 20:49:24 001 Xrd: TakeUrl: parsing url: > root://dcgftp12.ifae.es:1094//pnfs/ifae.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc09_7TeV > .107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZ > phys.100612.07.D3PD.D3PD._00001.root > 100917 20:49:24 001 Xrd: TakeUrl: Proto: root > 100917 20:49:24 001 Xrd: TakeUrl: HostWPort: dcgftp12.ifae.es:1094 > 100917 20:49:24 001 Xrd: TakeUrl: File: > /pnfs/ifae.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20 > .recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD.D3PD._0000 > 1.root > 100917 20:49:24 001 Xrd: TakeUrl: Host: dcgftp12.ifae.es > 100917 20:49:24 001 Xrd: TakeUrl: Port: 1094 > 100917 20:49:24 001 Xrd: HandleServerError: Received redirection to > [dc011:33130]. Token=[]]. Opaque=[]. > 100917 20:49:24 001 Xrd: XrdClientConn: Trying to connect to > 193.109.172.11:33130 > 100917 20:49:24 001 Xrd: Connect: Creating a logical connection... > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > key='cosuna@dc011:33116', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > key='cosuna@dc016:33123', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > [log in to unmask]:1094', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > key='cosuna@dc011:33127', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > key='cosuna@dc011:33130', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > [log in to unmask]:1094', LogCnt=1 Valid > 100917 20:49:24 001 Xrd: DumpPhyConn: Phyconn entry, > [log in to unmask]:1094', LogCnt=0 Valid > 100917 20:49:24 001 Xrd: Connect: LogConn: size:11 count: 2PhyConn: size:7 > 100917 20:49:24 001 Xrd: Connect: Connect(dc011, 33130) returned 10 > 100917 20:49:24 001 Xrd: DoHandShake: The physical channel is already bound > to the data server [dc011:33130]. No handshake is needed. > 100917 20:49:24 001 Xrd: GetAccessToSrv: Ok, the server on [dc011:33130] is > an xrootd data server. > 100917 20:49:24 001 Xrd: GetAccessToSrv: Reusing physical connection to > server [dc011:33130]). > 100917 20:49:24 001 Xrd: SendGenCommand: Got (and maybe recovered) an error > from dc011:33130 > 100917 20:49:24 001 Xrd: SendGenCommand: Sending command Open > 100917 20:49:24 001 Xrd: ReadPartialAnswer: Reading a XrdClientMessage from > the server [dc011:33130]... > 100917 20:49:24 001 Xrd: ReadPartialAnswer: Server [dc011:33130] answered > [kXR_error] (4003) > 100917 20:49:24 001 Xrd: CheckErrorStatus: Server [dcgftp12.ifae.es:1094] > declared: OpenRequest different from the one the redirector got(error code: > 3000) > ERROR Open Error opening the file > /pnfs/ifae.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD. > e529_s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD.D3PD._00001.root > on h > ost dcgftp12.ifae.es:1094 > Error in <TXNetFile::CreateXClient>: open attempt failed on > root://xrootd.ifae.es//pnfs/ifae.es/IFAEAtlasTier2/t2atlasscratchdisk/group10/phys-sm/mc09_7TeV/group10.phys-sm.mc0 > 9_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1302.WZphys.100612.07.D3PD/group10.phys-sm.mc09_7TeV.107650.AlpgenJimmyZeeNp0_pt20.recon.ESD.e529_s765_s767_r1 > 302.WZphys.100612.07.D3PD.D3PD._00001.root > > > > > -- > Carlos Osuna > IFAE, Facultat Ciencies Nord UAB, E-08193 Bellaterra (Barcelona) Spain > Email: [log in to unmask] Tel: +34 93 586 8257 > >