Long-term stability of openhab

Running on a RPI2 8gb sd
Attached hardware:
5TB HDD
4TB HDD
FTDI DMX

Software
Oracle java 1.8.x
OpenHab 1.8
Samba
MySQL
Mosquitto
OLA
MiniDLNA

Bindings:
Insteon PLM
XBMC
DMX
MQTT
Network Health

And it hasn’t been stable, although I think I have fixed it now. I was having to reboot it multiple times a day, maybe it would run for a few days if I was lucky. but I modified my tmpfs file and it seems stable, at least for the few hours it’s been running. here is the link to that conversation