Congrats to the Scylla team! These features and performance improvements are pretty huge for people working with Apache C* that want to evaluate Scylla. Compatible storage formats will certainly make evaluations much easier. Also, hope the Scylla experience with MVs is better...

As far as compatibility w/ Apache Cassandra 3.x+, is there anything outstanding?

Exactly! We're working on LWT & the consensus protocol behind it, Raft. Anyone heading to FOSDEM '19 in Brussels can hear this talk by Duarte Nunes: https://fosdem.org/2019/schedule/event/raft_in_scylla/

Also, for those looking for the side-by-side comparison with Cassandra, there's this page:

https://docs.scylladb.com/using-scylla/cassandra-compatibili...

What's a light weight transaction?

A compare-and-set request. E.g., I can read version 3 of a row, and write version 4 if the current version is still 3, so that if someone else writes version 4 I don't clobber whatever they just did.

That’s a really succinct definition. I like it. Thank you.

To be clear, "lightweight transactions" are a Cassandra specific term, nobody else uses that. Compare-and-set, atomic updates, or just transactions are the normal terms.

Pythian blog on the topic; note that Cassandra relies on Paxos as a consensus algorithm. Scylla will be using Raft: https://blog.pythian.com/lightweight-transactions-cassandra/

I agree as well. However, it seems a common mistake to assume you can just "deploy", especially coming from traditional RDBMS.

Great power, great responsibility.

What are you using for managing those 1000 nodes? opscenter or something else?

Yes opscenter, netlfix's priam, Cassandra cluster manager and the usual monitoring stuff, Datadog in our case. So far so good.

I think the April Fool's joke was around HAProxy being completely rewritten in Lua: http://www.haproxy.org/news.html

Oops, you are correct... the joke is on me. Thanks for correcting me.

Junk title, but you can apply this article's critique to many communities in general (especially online ones with a myopic user base). On the whole, the StackExchange sites contain a wealth of information that's readily accessible and can't be duplicated easily. There's certainly room for competition that's not just a plain forum, but what that looks like I'm not sure.

"Harmful" though? Have we already forgotten "experts-exchange" so soon?

Plenty of people complain about SO but no one is stepping up to challenge them.