Openfire suddenly dies at 50% memory usage.

Hello everyone,

I have a couple of clustered Openfire servers sitting on two Amazon Large (general purpose) Servers (7GB RAM, 2 cores).

Both of these are on Openfire v3.8.1. There is nothing installed on these servers, just Openfire (and server monitoring software).

Here's my question, one of my servers keep dying out when it reaches 50% memory usage. Then I'd have to login to the server and restart it. I attached a screenshot of the graphical representation of the server's memory usage.

Is anyone else having this problem? What could be the possible solutions I could try out?

Thank you in advance!

Edit: My VM params look like this: INSTALL4J_ADD_VM_PARAMS="-Xms512m -Xmx7024m"