Hi Nikolai, Actually we just figured this one out with Andy ... this due to relatively short default timeout (180s) given to the cache to close a file after a client disconnect. When a system is busy, cache can not finish writing to the file in time and then xrootd layer decides to "leak" it. We are working on a proper fix but in the meantime, please use: pss.ciosync 60 900 to increase the time given to the cache to close the file. The above line means try every 60s for a total of 900s -- this works for us at UCSD where we also had this problem. See: http://xrootd.org/doc/dev49/pss_config.htm#_Toc525070685 Cheers, Matevz -- 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/975#issuecomment-490174726 ######################################################################## 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