We're using Elastic Stack 5.0.0-alpha5.
We have very big trouble starting up Logstash.
Logstash won't start up after executing (as a service) over 1+ hours.
Process is alive, but there's no messages or logs even with debug configuration.
Are there anyone know the reasons and workarounds?
Ubuntu 16.04 LTS with java version 1.8.0_101