Hello, XRootD experts.
I have a question about "xrootd.redirect" feature of xrootd.
I'm trying to connect the xrootd server (not redirector) to a dCache's xrootd door as a backend.
There are many examples, so I'm going to try to follow them, but it doesn't work well.
The settings for the xrootd server I set are as follows.
xrd.port 1097
all.export /
all.role server
xrootd.redirect cms-t2-se01.sdfarm.kr:1094 all /
ofs.forward cms-t2-se01.sdfarm.kr:1094 all
cms.dfs lookup central
cms.trace all
Symptoms that followed these settings are as follows:
1. Directory navigation works well. The directory structure of dCache xrootd door on the 1094 port is displayed well.
2. Meta commands such as "stat" is work well for files.
3. Attempting to open or copy a file (such as root command or xrdcp) results in an Internal Error.
[root@cms-t2-se01 xrootd]# xrdfs cms-t2-se01.sdfarm.kr:1097 ls /pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000
/pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root
/pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/AE237916-5D76-E711-A48C-FA163EEEBFED.root
/pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/CE860B10-5D76-E711-BCA8-FA163EAA761A.root
[root@cms-t2-se01 xrootd]# xrdfs cms-t2-se01.sdfarm.kr:1097 stat /pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root
Path: /pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root
Id: 0
Size: 240461986
MTime: 2017-10-07 00:23:34
Flags: 48 (IsReadable|IsWritable)
(base) [geonmo@ui10 ~]$ root -l root://cms-t2-se01.sdfarm.kr:1097///pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root
root [0]
Attaching file root://cms-t2-se01.sdfarm.kr:1097//pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root as _file0...
Error in <TNetXNGFile::Open>: [ERROR] Server responded with an error: [3011] Unable to open /pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root; no such file or directory
(TFile *) nullptr
xrootd log:
[root@cms-t2-se01 xrootd]# tail -n 3 /var/log/xrootd/redir/xrootd.log
190917 18:24:03 22127 XrootdXeq: geonmo.1763304:22@[2001:320:15:124:d6ae:52ff:fe8c:6610] disc 0:00:01
190917 18:24:08 25086 XrootdXeq: geonmo.1763339:21@[2001:320:15:124:d6ae:52ff:fe8c:6610] pub IP64 login
190917 18:24:08 25086 ofs_open: geonmo.1763339:21@[2001:320:15:124:d6ae:52ff:fe8c:6610] Unable to open /pnfs/sdfarm.kr/data/cms/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_2_6_91X_mcRun1_realistic_v2-v1/00000/A64CCCF2-5C76-E711-B359-0CC47A78A3F8.root; no such file or directory
How can I use it as a complete redirect?
Regards,
--------------------------------------------------------------------------------------------------
Geonmo
Ryu / 류건모
Korea Institute of Science and Technology Information
(KISTI)
Global Science Experimental Data Hub Center (GSDC)
245 Daehak-ro,
Yuseong-gu, Daejeon, 305-806, Republic of Korea
Tel : +82-42-869-1639,
+82-10-4337-9423
Mail : [log in to unmask] /
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