[Gluster-devel] Why vandermonde matrix is used in EC?

한우형 whhan91 at gmail.com
Thu Nov 24 03:25:07 UTC 2016


I'm working on dispersed volume(ec) and I found ec encode/decode algorithm
is using non-systematic vandermonde matrix.

My question is this: why non-systematic algorithm is used? If we use
systematic algorithm(not systematic vandermonde, It's not MDS) we can boost
read performance. (no need to decode step in read)

Best regards,
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