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@olifre : thanks a lot for your feedback! From the logs one can clearly see the manager is not redirecting on kXR_dirlist!
First, the client tries to stat the directory:
[2020-04-07 17:58:24.212639 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Wrote a message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) (0x800dfc0), 97 bytes
[2020-04-07 17:58:24.212651 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Successfully sent message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) (0x800dfc0).
[2020-04-07 17:58:24.212663 +0200][Dump ][XRootD ] [xrootd.physik.uni-bonn.de:1094] Message kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) has been successfully sent.
[2020-04-07 17:58:24.212686 +0200][Debug ][ExDbgMsg ] [xrootd.physik.uni-bonn.de:1094] Moving MsgHandler: 0x8002b70 (message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) ) from out-queu to in-queue.
[2020-04-07 17:58:24.212698 +0200][Dump ][PostMaster ] [xrootd.physik.uni-bonn.de:1094 #0.0] All messages consumed, disable uplink
[2020-04-07 17:58:24.227681 +0200][Dump ][XRootDTransport ] [msg: 0x950] Expecting 32 bytes of message body
[2020-04-07 17:58:24.227700 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Received message header for 0x950 size: 8
[2020-04-07 17:58:24.227717 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Received message 0x950 of 40 bytes
[2020-04-07 17:58:24.227725 +0200][Dump ][PostMaster ] [xrootd.physik.uni-bonn.de:1094 #0] Handling received message: 0x950.
[2020-04-07 17:58:24.227804 +0200][Dump ][XRootD ] [xrootd.physik.uni-bonn.de:1094] Got kXR_redirect response to message kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none): xrootd008.physik.uni-bonn.de, port 1094
the manager is redirecting the client to xrootd008.physik.uni-bonn.de.
[2020-04-07 17:58:24.350899 +0200][Dump ][AsyncSock ] [xrootd008.physik.uni-bonn.de:1094 #0.0] Wrote a message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) (0x800dfc0), 97 bytes
[2020-04-07 17:58:24.350912 +0200][Dump ][AsyncSock ] [xrootd008.physik.uni-bonn.de:1094 #0.0] Successfully sent message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) (0x800dfc0).
[2020-04-07 17:58:24.350927 +0200][Dump ][XRootD ] [xrootd008.physik.uni-bonn.de:1094] Message kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) has been successfully sent.
[2020-04-07 17:58:24.350935 +0200][Debug ][ExDbgMsg ] [xrootd008.physik.uni-bonn.de:1094] Moving MsgHandler: 0x8002b70 (message: kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none) ) from out-queu to in-queue.
[2020-04-07 17:58:24.350945 +0200][Dump ][PostMaster ] [xrootd008.physik.uni-bonn.de:1094 #0.0] All messages consumed, disable uplink
[2020-04-07 17:58:24.368834 +0200][Dump ][XRootDTransport ] [msg: 0xf1610] Expecting 44 bytes of message body
[2020-04-07 17:58:24.368860 +0200][Dump ][AsyncSock ] [xrootd008.physik.uni-bonn.de:1094 #0.0] Received message header for 0xf1610 size: 8
[2020-04-07 17:58:24.368874 +0200][Dump ][AsyncSock ] [xrootd008.physik.uni-bonn.de:1094 #0.0] Received message 0xf1610 of 52 bytes
[2020-04-07 17:58:24.368883 +0200][Dump ][PostMaster ] [xrootd008.physik.uni-bonn.de:1094 #0] Handling received message: 0xf1610.
[2020-04-07 17:58:24.368957 +0200][Dump ][XRootD ] [xrootd008.physik.uni-bonn.de:1094] Got a kXR_ok response to request kXR_stat (path: //cephfs/grid/atlas/atlaslocalgroupdisk/?xrd.gsiusrpxy=/tmp/x509up_u38502, flags: none)
and everything went fine, but then the client sends kXR_dirlist to the manager (xrootd.physik.uni-bonn.de:1094):
[2020-04-07 17:58:24.501107 +0200][Dump ][FileSystem ] [[log in to unmask]:1094] Sending kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/)
[2020-04-07 17:58:24.501116 +0200][Dump ][XRootD ] [xrootd.physik.uni-bonn.de:1094] Sending message kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/)
[2020-04-07 17:58:24.501127 +0200][Debug ][ExDbgMsg ] [xrootd.physik.uni-bonn.de:1094] MsgHandler created: 0x8003a00 (message: kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) ).
[2020-04-07 17:58:24.501138 +0200][Dump ][PostMaster ] [xrootd.physik.uni-bonn.de:1094 #0] Sending message kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) (0x8002190) through substream 0 expecting answer at 0
[2020-04-07 17:58:24.501207 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Wrote a message: kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) (0x8002190), 64 bytes
[2020-04-07 17:58:24.501223 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Successfully sent message: kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) (0x8002190).
[2020-04-07 17:58:24.501231 +0200][Dump ][XRootD ] [xrootd.physik.uni-bonn.de:1094] Message kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) has been successfully sent.
[2020-04-07 17:58:24.501237 +0200][Debug ][ExDbgMsg ] [xrootd.physik.uni-bonn.de:1094] Moving MsgHandler: 0x8003a00 (message: kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) ) from out-queu to in-queue.
[2020-04-07 17:58:24.501246 +0200][Dump ][PostMaster ] [xrootd.physik.uni-bonn.de:1094 #0.0] All messages consumed, disable uplink
[2020-04-07 17:58:24.515558 +0200][Dump ][XRootDTransport ] [msg: 0x53c0] Expecting 96 bytes of message body
[2020-04-07 17:58:24.515587 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Received message header for 0x53c0 size: 8
[2020-04-07 17:58:24.515602 +0200][Dump ][AsyncSock ] [xrootd.physik.uni-bonn.de:1094 #0.0] Received message 0x53c0 of 104 bytes
[2020-04-07 17:58:24.515611 +0200][Dump ][PostMaster ] [xrootd.physik.uni-bonn.de:1094 #0] Handling received message: 0x53c0.
[2020-04-07 17:58:24.515641 +0200][Dump ][XRootD ] [xrootd.physik.uni-bonn.de:1094] Got a kXR_error response to request kXR_dirlist (path: //cephfs/grid/atlas/atlaslocalgroupdisk/) [3011] Unable to open directory /cephfs/grid/atlas/atlaslocalgroupdisk/; no such file or directory
but this time the manager is not redirecting, it is just returning an error.
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