Hi, We encountered the same kind of error for one of our users. CEPH Version : 16.2.10 2023-10-24T17:57:22.438+0200 7fc27ab44700 0 WARNING: set_req_state_err err_no=125 resorting to 500 2023-10-24T17:57:22.439+0200 7fc584957700 0 req 12200560481916573577 143.735748291s ERROR: RESTFUL_IO(s)->complete_header() returned err=Bad file descriptor 2023-10-24T17:57:22.439+0200 7fbecfaed700 1 ====== req done req=0x7fbdb86ab600 op status=-125 http_status=500 latency=143.735748291s ====== 2023-10-24T17:57:22.439+0200 7fbecfaed700 1 beast: 0x7fbdb86ab600: 10.227.131.117 - dev-centralog-save [24/Oct/2023:17:54:58.703 +0200] "PUT <obfuscate>&partNumber=1 HTTP/1.1" 500 58720313 - "<agent>" - latency=143.735748291s I haven't got any clue on the cause...