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Hello , I see different behavior between two different simple proxy machines that I am trying to debug. from outside either cluster xrd <proxy machine> dirlist /atlas gives different results - These machines are running in different clusters. On one cluster [benjamin@atl010 topd3pd-datamanagement]$ xrd atlas29.hep.anl.gov:1094 (C) 2004-2010 by the Xrootd group. Xrootd version: v3.0.5 Welcome to the xrootd command line interface. Type 'help' for a list of available commands. root://atlas29.hep.anl.gov:1094//> dirlist /atlas drwx(051) 4096 2011-07-18 13:39:47 /atlas/ANLASC_TEST -rw-(048) 277 2010-11-11 23:31:41 /atlas/I-love-computers.fail drwx(051) 4096 2011-07-16 03:03:42 /atlas/UTA-T3-Test drwx(051) 22 2010-11-03 17:09:34 /atlas/ddo drwx(051) 4096 2011-09-14 03:54:50 /atlas/dq2 drwx(051) 22 2010-11-06 19:23:48 /atlas/group10 drwx(051) 4096 2011-05-11 00:49:38 /atlas/local drwx(051) 16 2010-11-16 17:32:50 /atlas/mc09_7TeV drwx(051) 4096 2011-09-13 15:24:00 /atlas/test -rw-(048) 142 2010-11-10 03:44:21 /atlas/testfile.slac.fail drwx(051) 35 2010-11-20 21:34:13 /atlas/user -rw-(048) 0 2010-11-11 23:31:41 /atlas/DIR_LOCK root://atlas29.hep.anl.gov:1094//> exit Goodbye. Yet on the other cluster [benjamin@atl010 topd3pd-datamanagement]$ xrd titan12.physics.umass.edu:1095 (C) 2004-2010 by the Xrootd group. Xrootd version: v3.0.5 Welcome to the xrootd command line interface. Type 'help' for a list of available commands. root://titan12.physics.umass.edu:1095//> dirlist /atlas root://titan12.physics.umass.edu:1095//> exit Goodbye. Here is the configuration files for each machine -------------- atlas29.hep.anl.gov ------------------ all.adminpath /var/spool/xrootd/admin all.export /atlas r/o ofs.osslib /usr/lib64/libXrdPss.so pss.origin headprv.hep.anl.gov:1094 # While we call this instance a "server" it is, in fact, a proxy server since we told the ofs # to use libXrdPss.so as the storage handler (this is really the proxy service library). We # do this so that we can directly subscribe to the meta-manager instead of doing so # indirectly via a local manager. We don't need a local manager as there is a single # proxy running in this cluster. # all.role server all.manager glrd.usatlas.org:1095 xrd.port 1094 if exec xrootd xrd.trace all -debug cms.trace all -debug xrd.allow host * --------------------------- titan12.physics.umass.edu --------------------------- all.adminpath /var/spool/xrootd/admin all.export /atlas r/o ofs.osslib /usr/lib64/libXrdPss.so pss.origin 172.30.49.10:1094 # While we call this instance a "server" it is, in fact, a proxy server since we told the ofs # to use libXrdPss.so as the storage handler (this is really the proxy service library). We # do this so that we can directly subscribe to the meta-manager instead of doing so # indirectly via a local manager. We don't need a local manager as there is a single # proxy running in this cluster. # all.role server all.manager glrd.usatlas.org:1095 xrd.port 1095 if exec xrootd xrd.trace all -debug cms.trace all -debug172.30.49.10 xrd.allow host * ---------------------------- Note it does not appear to be a network connection between titan12 and 172.30.49.10. I can use the telnet command to connect to the xrootd and cmsd daemons running on 172.30.49.10. Note the dirlist command against 172.30.49.10 from titan12 gives all of the directories that I would expect. Any idea what might be blocking all of this would be helpful. Thanks, Doug Benjamin