At 17:00 19.12.2016, devz...@web.de wrote: >>http://olstrans.sourceforge.net/release/OLS2000-rsync/OLS2000-rsync.html > ><snipp> But the filename twice can happen under other circumstances; if you've >seen this happen, it's almost certainly because the file changed during >transfer. Rsync does no locking. Which means that: if you are modifying a file >while it's being transferred, then probably the checksum will fail and it'll >go round again. And if it goes around twice, and it still fails, then it >prints a message saying; Error, checksum failed, file changed during transfer? >And it's probably a file like a log file that's being constantly updated and >so the checksums didn't match because it's never going to be able to get it >exact; it means that what you've got on the other end is something which will >approximate some snapshot of the file, but because it's not doing any locking, >it can't guarantee that it's got a particular snapshot of the file, because >you can't have an atomic read of the whole file. [31m, 49s] <snipp> >nope, this is wrong, there is no message "checksum failed"
Actually rsync does that (from a log on our server): ... PUBLIC_SERVER_BACKUP/wiki/data/index/i10.idx WARNING: PUBLIC_SERVER_BACKUP/wiki/data/index/i10.idx failed verification -- update retained (will try again). ... PUBLIC_SERVER_BACKUP/wiki/data/index/i10.idx So it did recognize a change and synched it a second time. Don't know what happens if the file changes again though. >to be a valuable backup solution, i`d like some networker a`like behaviour >which gives "file changed during save" > >i wonder what`s so difficult for rsync to "look" at the timestamp or checksum >a second time after transfer and if it changed it should spit out a warning.... > >isn`t this something which _could_ be implemented, if somebody is able to do >ist ? Maybe it's a question of informational flags (-v, --progress, --stats etc). bye Fabi -- Please use reply-all for most replies to avoid omitting the mailing list. To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
