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That may be true, but I'm pretty sure that in this case it simply has to do with the block size being requested. I changed our client to use 8 MiB (like xrdcp) instead of 4, and it now works against RAL. Al ________________________________ From: Andrew Hanushevsky ***@***.***> Sent: Friday, August 6, 2021 3:15 PM To: xrootd/xrootd ***@***.***> Cc: Albert Rossi ***@***.***>; Comment ***@***.***> Subject: Re: [xrootd/xrootd] 5.2.X xroot TPC transfer: File size mismatch in transfers to dcache (#1454) Hi Paul, I believe the reason is that xrdcp does not read past EOF (i.e. it gets the size of the file first). Andy On Fri, 6 Aug 2021, Paul Millar wrote: > At the risk of asking a stupid question: why is xrdcp able to transfer the file's content with the correct file size? > > I may be missing something, but dCache's embedded xrootd client and xrdcp are (in essence) doing the same thing: downloading a file. The difference is that xrdcp writes the correct number of bytes to disk while dCache's embedded client writes the wrong file size. > > If RAL's data server is somehow "wrong" (sending a final response with kXR_oksofar and some bogus response with kXR_ok) why does the transfer work for xrdcp? > > -- > You are receiving this because you were mentioned. > Reply to this email directly or view it on GitHub: > https://github.com/xrootd/xrootd/issues/1454#issuecomment-894164785<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_xrootd_xrootd_issues_1454-23issuecomment-2D894164785&d=DwQCaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=60rQ0HHqHmEY1P6VSdyuTQ&m=ZK1nXz6-BvxEqCOjH-uOt0hboJf_uH7nxFpb_Ijr5gQ&s=-SlYD6QEho3Tb3a6ChTbvRNwW8m2aZfYG6puzV_vXVo&e=> — You are receiving this because you commented. Reply to this email directly, view it on GitHub<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_xrootd_xrootd_issues_1454-23issuecomment-2D894496331&d=DwMCaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=60rQ0HHqHmEY1P6VSdyuTQ&m=ZK1nXz6-BvxEqCOjH-uOt0hboJf_uH7nxFpb_Ijr5gQ&s=ssM3nB15elbGN6Yb9nHSyUDW7NCqGew3X8DgAu9JByA&e=>, or unsubscribe<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_notifications_unsubscribe-2Dauth_AA6NBHAN6ZST7EN7KMDC6KTT3Q7HNANCNFSM44JDUM5A&d=DwMCaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=60rQ0HHqHmEY1P6VSdyuTQ&m=ZK1nXz6-BvxEqCOjH-uOt0hboJf_uH7nxFpb_Ijr5gQ&s=SGiSuwi3UdlXfW0eKVXTpFXDd12wR9Ny-uG9PJ18HnI&e=>. Triage notifications on the go with GitHub Mobile for iOS<https://urldefense.proofpoint.com/v2/url?u=https-3A__apps.apple.com_app_apple-2Dstore_id1477376905-3Fct-3Dnotification-2Demail-26mt-3D8-26pt-3D524675&d=DwMCaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=60rQ0HHqHmEY1P6VSdyuTQ&m=ZK1nXz6-BvxEqCOjH-uOt0hboJf_uH7nxFpb_Ijr5gQ&s=t1OqN1XXv0gOvYYePesdjzo-NbSkOcWezS3wXx5dKHI&e=> or Android<https://urldefense.proofpoint.com/v2/url?u=https-3A__play.google.com_store_apps_details-3Fid-3Dcom.github.android-26utm-5Fcampaign-3Dnotification-2Demail&d=DwMCaQ&c=gRgGjJ3BkIsb5y6s49QqsA&r=60rQ0HHqHmEY1P6VSdyuTQ&m=ZK1nXz6-BvxEqCOjH-uOt0hboJf_uH7nxFpb_Ijr5gQ&s=0U5OODR0a2XAMKlS6zw2LflNpGYYZ5mLzA1UNVADYEY&e=>. -- 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/1454#issuecomment-894498672 ######################################################################## 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