I've reproduced both conditions; hank you for reporting them along with test cases we can run. The double send seems to be related to http post-processing during file close. It's weird. The lost file descriptor is indeed timing dependent and appears to be incorrect handling of a broken pipe error. I don't yet know whether it's the http protocol not handling this correctly or some deeper systemic problem. More as we figure all this out. -- 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/596#issuecomment-333741170 ######################################################################## 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