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Hi all, I have setup XRootd cluster in our supercomputer center to distribute and access data from `Lustre` filesystem to different systems/places, as setup is one `Redirector` and `2x data server` which Lustre filesystem available on all nodes. `XRootd` user id being defined for lustre filesystem so to able to go through directories. As XRootd service runs with user and group `xrootd` it faces `permission denied` on folder and files which has no enabled bit for `read` on files/folders, e.g. ``` drwxr-x--- 7 b324025 bb0820 4096 Jan 27 11:34 ISIMIP ``` also from xrootd.log ``` ofs_opendir: root.26098:[log in to unmask] Unable to open directory /data/bb0820/ISIMIP; permission denied ``` The filesystem size is 55PB and thousands of groups there are, and even adding xrootd user to groups, there are some folder/file which has no `read` enabled bit on `group`. Lustre filesystem gives full control to user `root`, is there anyway to run xrootd so to be seen as root to lustre? this way everything become accessible at least for read. I have seen document guideline for Xrootd configuration that running xrootd with root is not recommended. I would appreciate any recommendations/suggestion Thanks Amjad -- You are receiving this because you are subscribed to this thread. Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1181 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-DEV list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-DEV&A=1