@girish That's not it. You have OOMs because people install all sorts of apps and try to abuse the system, like WP and trying out large plugins.
My system has 0 OOMs. None.
Mine also has enough of IO as I asked them to limit the number of new customers on the host system.# dd if=/dev/zero of=/tmp/test1.img bs=1G count=1 oflag=dsync ; rm /tmp/test1.img 1+0 records in 1+0 records out 1073741824 bytes (1.1 GB, 1.0 GiB) copied, 5.50861 s, 195 MB/s
Doesn't explain 48GB mem spikes.
This only seems to be happening on 20.04 Cloudrons, not 18.04.
Btw, the main issue I think you're having is the choice of that NY datacenter, it's networking isn't great, they seem to allow burst traffic but then quickly throttle down or experience congestion.
Seattle has been way better for me.