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Hi Heiko, That's interesting, could you give me more details on your scenario, are you using xrdcp from a script or XrdCl C++ API (or Python bindings)? Could you also provide client side logs from a run when you observed stalling? Cheers, Michal ________________________________________ From: [log in to unmask] [[log in to unmask]] on behalf of Heiko Schröter [[log in to unmask]] Sent: 18 April 2018 20:26 To: [log in to unmask] Cc: [log in to unmask]; [log in to unmask] Subject: Re: Stalling client when copying files (xrdcp 4.8.2) This stalling does not occur with the 4.8.3-rc1. Am 17.04.2018 um 19:24 schrieb Heiko Schröter: > Hello, > > we do observe that when copying a file the client is stalled for some time. > > 180417 19:17:28 17252 schroete.97360:7@qc08 XrootdProtocol: 0100 > stalling client for 5 sec > > Sometimes it is for 10sec and this gets repeated without a recognizable > pattern. > > The client is not stalled when the copied file is removed at once and > recopied. > > It looks like a similar issue as this one: > https://listserv.slac.stanford.edu/cgi-bin/wa?A2=ind1203&L=XROOTD-L&P=R598&1=XROOTD-L&9=A&I=-3&J=on&d=No+Match%3BMatch%3BMatches&z=4 > > > Is this a settable parameter or something we did wron in our setup ? > > We have one redirector and 12 data server on a 10GBit network. Client > access is very limited because this is a test setup. > > Regards > Heiko > ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1 ######################################################################## Use REPLY-ALL to reply to list To unsubscribe from the XROOTD-L list, click the following link: https://listserv.slac.stanford.edu/cgi-bin/wa?SUBED1=XROOTD-L&A=1