I'm getting desperate.
i have a BigV server with 2Gig memory that serves a few Wordpress and Joomla websites plus a little used Ruby on Rails App.
Several times a day, the whole thing locks up with a high system load and would ultimately die if it were not for a 'monit' job that spots the high load and starts killing things until it recovers. Outages last between 2 and 20 mins, depending on how long it takes for the system load to drop.
The server sits on top of a luks whole disk encryption scheme, with LVM on top.
I'm guessing that this is to much of an overhead, given that there's already some kind of volume management carried out by Bytemark to provision the 'disks' in the first place.
Does anyone else do this and do you have issues?
I'm contemplating removing the encryption layer, but if there's a simple tweak somewhere to be done, I'd prefer not to.
If it's a choice between encryption and LVM, I'd prefer to retain LVM for snapshots and rolling back 'stuff'.
I was an early adopter of BigV, and after its initial teething trouble, this setup settled down and ran fine for months.
It is now particularly bad, and I need to do something about it.