I think the reasoning was to add missing features, mainly HA, which moosefs did not have at the time and currently provides it in its paid version. One thing I

I think the reasoning was to add missing features, mainly HA, which moosefs did not have at the time and currently provides it in its paid version. One thing I never understood though is why when forking they decided to rewrite everything in C++. Wouldn't be better to just write it from scratch?