[erulabs]

> "I assume the company the size of Uber can figure it out. C’mon"

Really? Is there no acceptance that the state of PostreSQL replication is a huge hot mess? The fact that Uber couldn't figure it out should be a huge giant red flag about _both_ Uber's DBAs and _also_ the state of Postgres!

> "Uber had a lot of long-running transactions because [they were doing it wrong]"

pool-of-threads is a much better and much more defensive connection model. It's why NGINX beat out Apache - people LONG AGO realised process-on-request is terrible. How this can be shrugged off when pool-of-threads is easily one of MySQL's best features is a bit shocking. Has this guy ever been on-call for a web application before?

> Great for WordPress.

Lol! Bitter much?

[xupybd]

I'd agree with your point about replication. PostgreSQL is amazing but falls over in a HA setting. If people are willing to put up with MySQL to get good replication, that speaks volumes. That said I'm hoping this will soon change in 10 ~fingers crossed~.

[bfrog]

HA is relatively painless even with 9.x if your ok with wal replication. The problem there though is like they say in the paper, the amount of crap that is sent over the wire is pretty substantial.