May 26, 2018

Parallel ftp-fetching program

Paraget implements getting a single file in parallel from different mirror sites.

Given that there are mirror-sites for the file one is downloading, one can in principle accomplish a much greater bandwidth by downloading from all the sites in parallel . This is accomplished by dividing the file being fetched into several pieces, and by getting each piece from a different server, and then re-assembling them.

If there are enough mirror sites, this partitioning makes it so that the bottleneck is now placed at the client end, maxing the client’s connection.

Paraget is designed to not only do basic n -equal-piece partitioning of a file and sending requests out to n servers for data, but to also be dynamic during the downloading process. For example if one server is too slow, and paraget was done with faster server downloading its piece

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