Yesterday evening, around 6pm, the memory use on my new ASG 8.1 box started to increase steadily, eventually consuming all of the swap space and most of the RAM. This happened at a time when there were no live users on the LAN, the only activity being my bit torrent traffic, which involves seeding torrents at a steady outbound rate limited to 25 KBytes/sec, and participating in two DHT clouds on the net. I have IDS exceptions defined for that traffic.
I rebooted the ASG router, which brought the memory utilization back down, but I am very puzzled as to what could have caused this.
I have gone through the IPS rules and done some of that. Specifically, I created exceptions for bit torrent and IRC traffic.
I also added more RAM to the machine in stages. With 1.5 GB installed, it still used a fair bit of swap. With 1.75 GB installed, swap usage of the 1 GB swap partition dropped to around 4%. With 2 GB RAM installed, swap is no longer being used, and RAM usage sits just below 50%.
After some upgrade with now being at 8.301 and changing the settings for local networks to only include the DMZ network, the memory usage decreased, but I have to wait some weeks to see if there is no linear increase.
After some upgrade with now being at 8.301 and changing the settings for local networks to only include the DMZ network, the memory usage decreased, but I have to wait some weeks to see if there is no linear increase.
