It will crash your database, maybe not at first but trust me it will. had it installed on 5 website and it destroyed all of them. I had to restore all of them from a 30 day prior to install backup, and I lost a month of data/sales had to re-install whmcs... a complete nightmare.
Oh and it wasn't that my hardware couldn't handle it. I'm running 24 Intel Xeon 2.4Ghz 10core CPU (that's 240 processing units) w/24GB memory on Cloudlinux running SSD in a raid 10 config.