Hi Doug, I noticed that the data server is on private IP. Just want to make sure that doesn't play a role. regards, Wei Yang | [log in to unmask] | 650-926-3338(O) On Aug 11, 2011, at 5:18 AM, Doug Benjamin wrote: > Hi, > > I am trying to understand why my use of xrdalder32 command is failing. > > I have a file in xrootd storage - > I can see it from the redirector > > [root@wnode01 ~]# xrd hnode.atlaspitt:1094 locateall /atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > > > ------------- Location #1 > InfoType: kXrdcLocDataServer > CanWrite: true > Location: '192.168.100.101:1094' > > Yet I get this result from xrdalder32 > > [root@wnode01 ~]# /usr/bin/xrdadler32 root://hnode.atlaspitt:1094//atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > Error_accessing root://hnode.atlaspitt:1094//atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > > I get a similar error when I query the data server with the file : > > [root@wnode01 ~]# /usr/bin/xrdadler32 root://wnode01.atlaspitt:1094//atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > Error_accessing root://wnode01.atlaspitt:1094//atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > > Yet when I query the actual file on disk: the xrdalder32 succeeds. > > [root@wnode01 ~]# /usr/bin/xrdadler32 /local/xrootd/a/atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > d26e385b /local/xrootd/a/atlas/local/bdouglas/data11_7TeV.00180224.physics_Egamma.merge.NTUP_EGAMMA.f368_m806_p536_tid327358_00/NTUP_EGAMMA.327358._000001.root.1 > > Am I doing something wrong or did I find an undocumented feature. > > Thanks, > > Doug Benjamin > > >