With XRD_CONNECTIONWINDOW=600 xrdcp tries IPv4 connection, but without this option fails on IPv6 attempts. $ XRD_CONNECTIONWINDOW=600 xrdcp -f -d2 root://xrootd-cms-redir-01.cr.cnaf.infn.it//store/test/xrootd/CMSSAM/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_0_0_90X_mcRun1_realistic_v4-v1/10000/28B9D1FB-8B31-E711-AA4E-0025905B85B2.root /dev/null [2017-11-17 18:00:51.033805 +0200][Debug ][Utility ] CopyProcess: 2 jobs to prepare [2017-11-17 18:00:51.034279 +0200][Debug ][Utility ] Creating a classic copy job, from root://xrootd-cms-redir-01.cr.cnaf.infn.it:1094//store/test/xrootd/CMSSAM/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_0_0_90X_mcRun1_realistic_v4-v1/10000/28B9D1FB-8B31-E711-AA4E-0025905B85B2.root to file:///dev/null [2017-11-17 18:00:51.034523 +0200][Debug ][Utility ] Monitor library name not set. No monitoring [2017-11-17 18:00:51.034771 +0200][Debug ][Utility ] Opening root://xrootd-cms-redir-01.cr.cnaf.infn.it:1094//store/test/xrootd/CMSSAM/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_0_0_90X_mcRun1_realistic_v4-v1/10000/28B9D1FB-8B31-E711-AA4E-0025905B85B2.root for reading [2017-11-17 18:00:51.035023 +0200][Debug ][File ] [0xa2e0bff0@root://xrootd-cms-redir-01.cr.cnaf.infn.it:1094//store/test/xrootd/CMSSAM/store/mc/SAM/GenericTTbar/AODSIM/CMSSW_9_0_0_90X_mcRun1_realistic_v4-v1/10000/28B9D1FB-8B31-E711-AA4E-0025905B85B2.root] Sending an open command [2017-11-17 18:00:51.035526 +0200][Debug ][Poller ] Available pollers: built-in [2017-11-17 18:00:51.035691 +0200][Debug ][Poller ] Attempting to create a poller according to preference: built-in [2017-11-17 18:00:51.035840 +0200][Debug ][Poller ] Creating poller: built-in [2017-11-17 18:00:51.035918 +0200][Debug ][Poller ] Creating and starting the built-in poller... [2017-11-17 18:00:51.036192 +0200][Debug ][Poller ] Using 1 poller threads [2017-11-17 18:00:51.036382 +0200][Debug ][TaskMgr ] Starting the task manager... [2017-11-17 18:00:51.036449 +0200][Debug ][TaskMgr ] Task manager started [2017-11-17 18:00:51.036625 +0200][Debug ][JobMgr ] Starting the job manager... [2017-11-17 18:00:51.036741 +0200][Debug ][JobMgr ] Job manager started, 3 workers [2017-11-17 18:00:51.036889 +0200][Debug ][TaskMgr ] Registering task: "FileTimer task" to be run at: [2017-11-17 18:00:51 +0200] [2017-11-17 18:00:51.036944 +0200][Debug ][PostMaster ] Creating new channel to: xrootd-cms-redir-01.cr.cnaf.infn.it:1094 1 stream(s) [2017-11-17 18:00:51.036979 +0200][Debug ][PostMaster ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0] Stream parameters: Network Stack: IPAuto, Connection Window: 600, ConnectionRetry: 5, Stream Error Widnow: 1800 [2017-11-17 18:00:51.037342 +0200][Debug ][TaskMgr ] Registering task: "TickGeneratorTask for: xrootd-cms-redir-01.cr.cnaf.infn.it:1094" to be run at: [2017-11-17 18:01:06 +0200] [2017-11-17 18:00:51.043067 +0200][Debug ][PostMaster ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094] Found 2 address(es): [2001:760:4205:216::11]:1094, [::ffff:131.154.216.11]:1094 [2017-11-17 18:00:51.043160 +0200][Debug ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Attempting connection to [2001:760:4205:216::11]:1094 [2017-11-17 18:00:51.043227 +0200][Debug ][Poller ] Adding socket 0xa2e0bd90 to the poller [2017-11-17 18:02:59.606669 +0200][Debug ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Async connection call returned [2017-11-17 18:02:59.606763 +0200][Error ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Unable to connect: Connection timed out [2017-11-17 18:02:59.606784 +0200][Debug ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Closing the socket [2017-11-17 18:02:59.606806 +0200][Debug ][Poller ] <x><--><x> Removing socket from the poller [2017-11-17 18:02:59.606902 +0200][Debug ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Attempting connection to [::ffff:131.154.216.11]:1094 [2017-11-17 18:02:59.607000 +0200][Debug ][Poller ] Adding socket 0xa2e0bd90 to the poller [2017-11-17 18:02:59.678993 +0200][Debug ][AsyncSock ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Async connection call returned [2017-11-17 18:02:59.679093 +0200][Debug ][XRootDTransport ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Sending out the initial hand shake + kXR_protocol [2017-11-17 18:02:59.750959 +0200][Debug ][XRootDTransport ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] Got the server hand shake response (type: manager [], protocol version 310) [2017-11-17 18:02:59.751049 +0200][Debug ][XRootDTransport ] [xrootd-cms-redir-01.cr.cnaf.infn.it:1094 #0.0] kXR_protocol successful (type: manager [], protocol version 310) Should this option be added every time? -- You are receiving this because you are subscribed to this thread. 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