"In the evaluation in section 7 of the paper, Heron beats Storm in every single metric."<p>In every metric except perhaps the most important one for actual users:<p>Storm is open source, Heron isn't.<p>Also, the @TwitterOSS account indicated that there are "no plans to open source in the short-term":<p><a href="https://twitter.com/TwitterOSS/status/605460461761396736" rel="nofollow">https://twitter.com/TwitterOSS/status/605460461761396736</a>
> All the Stream Managers in a topology connect to each other to form an O(k^2) connection network<p>shouldn't that be !(k-1)? Or am I missing something about the architecture?
Now I get it. It's not just "I didn't write this, therefore shit, so I need to rewrite it from scratch." This was a clear explanation in a bite sized chunk which illustrated the reasons for Heron. Thanks.