Deadlock in "sbt run" when using Netty as a server
gslowikowski opened this issue · comments
There is no problem when using Akka HTTP server, but after switching to Netty, when I run sbt run (development mode) the first page shown is Database 'default' needs evolution!.
After clicking Apply this script now! application hangs.
Internally there is a deadlock.
One thread (play-dev-mode-akka.actor.default-dispatcher-<n>) is inside this synchronized block waiting for this asynchronous instruction to finish and another thread (netty-event-loop-<n>) trying to enter the same synchronized block.
Here is the repo showing this problem. Just execute sbt run. My execution log is here.