Server has very few mobs

[legion565]

Hi I have a slight issue with my server in which there are barely any mobs even in caves and at night there is next to no mobs at all on the overworld. There are lots and lots of wolves though and I thought they were supposed to be rare. Is there some sort of setting that I can use to increase the monster count?

 

[Siu]

I had similar issues but only with hostile mobs (sheep, wolves, chickens, cows were not an issues), and noted the following:

1. Exported the map into MCEdit, I saw that there were a significant number of spawns in a square pattern around the spawn point. The area was approximately 10x10. These spawns were above the ground, yet not visible to me when i was in that area. I deleted the chunks, loaded the map and all was well, for a time. Then the problem reoccurred. Spawns would be good for a day or so, then start to degrade.
2. The problem stopped when I upgraded my CPU in the dedicated server. I went from a Q6600 (Quad 2.4) with 8GB ram to an i7 with 16GB of ram. I have had no issues since then with mobs spawning.

I can only surmise that since my old CPU could not handle the load (avg of 75ms/t), the poor system performance was a factor in the issue.

 

[Siu]

Also, Check this post: http://forum.feed-the-beast.com/threads/fix-how-to-fix-no-mobs-spawning.23753/

It didn't work for me, but it might solve your issue.

 

[cjm721]

If its an issue with hostile mobs go difficulty 0 (peacefull) for a while then turn it back.