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rsync.net diff algorithm

Open mglaser opened this issue 15 years ago • 1 comments

I have been learning the source and doing some testing, am I correct in thinking the rsync diff algorithm is not working? The daemon is running with the command:

NetSync.exe --daemon --port 873 -vvvv

Then I sync a 1.2Mb text file using the following command: NetSync.exe -r -c "C:\Work\RPCv4\RPCDlls\rpclog.txt" localhost::qc

Number of files: 1 Number of files transferred: 1 Total file size: 1223943 Total transferred file size: 1223943 Literal data: 1223943 Matched data: 0 File list size: 67 Total bytes written: 1224250 Total bytes received: 62

When the file is unchanged, there is a match and only a few bytes are transferred. If it is changed by one byte the whole file is retransmitted. Is there a away to make it only send the changes? I have also tried the rsync:// protocol format for the destination and set --no-whole-file (this option doesn't appear implemented in the code so far)

Thanks, this is a very cool project and I'm keen to help make it work.

mglaser avatar Feb 02 '10 10:02 mglaser

the algorithm does work, but the original intent was to have a windows box be able to push data to a unix server. as a result, the only syntax that was fully tested is

NetSync.exe -r -c c:\path\to\file rsync://user:pass@server/module

the issue with this project is going to be unraveling all the switches and options rsync swallows. the core algorithm is correct and tested.

kolosy avatar Feb 02 '10 13:02 kolosy