Hi Michal, I am not sure I can reduce this issue with the above command: $ which gfal-copy /cvmfs/oasis.opensciencegrid.org/mis/osg-wn-client/3.5/3.5.51-1/el7-x86_64/usr/bin/gfal-copy $ XRD_RUNFORKHANDLER=1 gfal-copy -f /boot/initramfs-0-rescue-d0231f073a13492dacd4c9d50ed4a40f.img root://osggridftp01.slac.stanford.edu:2094//xrootd/atlas/usr/y/yangw/junk Copying file:///boot/initramfs-0-rescue-d0231f073a13492dacd4c9d50ed4a40f.img [DONE] after 0s I check the md5 and it is OK -- 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/1553#issuecomment-984414811 ######################################################################## 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