So, the trace shows that 2048 threads are waiting forlink serialization either for open() or close() (about 50%each). I don't have a reason for that but it usually means that there is an outstanding operation somewhere in the file system and until that completes neither and open nor a close can proceed. Could you post the log file that corresponds to this trace record? -- Reply to this email directly or view it on GitHub: https://github.com/xrootd/xrootd/issues/1799#issuecomment-1309039697 You are receiving this because you commented. Message ID: <[log in to unmask]> ######################################################################## 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