I thought I somehow emphasized that, sorry. It is memory. We are running MongoDB and two Java servers (play framework apps) and a Solr server. we immediately re

I thought I somehow emphasized that, sorry. It is memory. We are running MongoDB and two Java servers (play framework apps) and a Solr server. we immediately reach a full memory and then some of the swap gets being used, which slows down everything. Our processes are mostly RAM-sensitive.