I'm running a node on my raspberry pi 2 and it was running fine for the last 2 months without reboot.

Since some days i have some problems, the deamon fills the whole ram and even >1GB swapspace is used. I have to restart the deamon every day. The weeks before it was running  @ ~50% RAM-usage all the time. Does that have something to do with this attack ?

Is there something I can do or configure to prevent that memory bloat ?