I'm working on an upgrade from 1.6.0 to 2.1.0. This is on RHEL 7 and Java 1.8.0_40.
The issue is that when I execute any command in the elasticsearch-2.1.0/bin directory (elasticsearch, plugin, etc.), it just hangs indefinitely. There is no log or console output. However, if I switch to the elasticsearch-1.6.0 directory and execute any command, it works fine.
If I unpack the same 2.1.0 tar file on my Mac and execute a command, it also works fine. It appears to be an issue specific to RHEL 7 and elasticsearch 2.1.0.
I feel like I must be missing something, but I'm not sure where to go with this. Any ideas?