I came across an issue today that seems to be caused by DreamHost’s MySQL database moving activity of today (Nov 3 2015). My database user name (I only had one) was truncated to 16 characters after my database was moved by DreamHost. So if you are experiencing any wierd issues today, look into this.
For me it caused Magento to crash, because it couldn’t log into my database.
I have a VPS by the way.
I hope this message will be of help to others.