Yesterday I upgraded my lab from 5.5.0 to 5.5.1. Went through the whole upgrade process with no problems. Up to the stage of installing x-pack for Kibana and the process is stuck at the 'Optimizing and caching browser bundles...' stage.
I have left it now 26hrs (started Saturday 5pm).
Kibana is running as a vm, 4Gb allocated to it and its also an ES node. Looking at resources being used via esxi and hovering around 2 1/2 Gb.
Am I best to just let it go or can I kill the x-pack install and enable some debugging and then try to install x-pack again to see whats holding it up?