Posted by Stephan Ewen on URL: http://deprecated-apache-flink-user-mailing-list-archive.369.s1.nabble.com/Slow-startup-for-slaves-with-much-memory-tp25p30.html
If the JVM startup itself is that slow, there may be an issue that the JVM is not optimized for several hundreds of megabytes of memory.
In the long run, we may think about having multiple smaller JVMs per node.