The Puppet Server and Puppet Agent brought in a dependency on the
concurrent gem in versions 6.7.0 & 6.9.0 respectively (the server and agent
are unfortunately versioned slightly differently).
On the master, the Agent and the Server also share Ruby code. So if you
have a Server >= 6.7 with an Agen
After a crash of the server (Ubuntu 18.04) our puppetserver (6.2.1) process
refuses to start with the message it can not find the file/directory
"concurrent".
It looks like this is a JRuby/Java problem.
...
Oct 9 09:18:12 foreman puppetserver[32556]: LoadError: no such file to
load -- concurre
