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    The comments are owned by the poster. We aren’t responsible for their content.

    Re: Packages.gz is an imperfect aproach (Score: 1)
    by caf on Friday, December 07 @ 13:42:01 GMT
    (User Info)

    Well… as with most programming problems, it depends on your problem set. A solution similar to yours would do well in the case where you are expecting only a small number of errors in a transfer, relative to the transfer size – allowing it to resend only the errored block if only one block is in error.

    However, it gets worse as the number of blocks in error increases – with 2 blocks in error, it would require at worst 4 blocks to be resent.

    Rsync will also do a lot better than your algorithm in the case where data needs to be inserted at the beginning of the file – in your case, this would cause all the checksums ‘below’ this point in the matrix to be wrong, so all these blocks would have to be resent.

    – caf.

    [ Reply | Parent ]


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