What the Heck happened 5000+ entities!

[Stephen Dunne]

I logged into my single player world today to find this ........... what can i do to stop this happening again ?

 

[KieranSaurusRex]

B.. B... But How?????

 

[Hoff]

Those look player spawned. Sure no one's played on your world but you?

 

[Poppycocks]

Actually I've seen something like this in another thread.

From what I can remember - and don't quote me on this - it could be a corrupted chunk. The entities spawn in it and will continue to spawn until you delete it.

I'm not exactly sure on how to do this, but you should be able to find the right region file and delete that.

 

[Revemohl]

I had that happen to me once, but with chickens instead of monsters. Sadly enough the game crashed saying something about them being in the wrong place before I could do much, but after a bit of effort I managed to get to the bugged chunks and it was amazing.
So yeah, just try to delete the chunks with MCEdit (the most recent version, please, unless you like piston trees). You could try only deleting the entities as well if you don't want to lose them, but that didn't work when I tried it.

 

[Stephen Dunne]

Those look player spawned. Sure no one's played on your world but you?

Those are deffo not spawned in there are over 5000 entities in total, im just a single player world not on a server. Everything was fine , I was just starting to build my 1st house , when night fell my frames dropped from about 120fps to 0-4fps, I didn't have much so I just deleted that world and started again.

I was just wondering if it has happened before/ if there is a fix incase it happens when I have alot of good gear, and lots built, maybe go into peaceful and back to normal might fix it, I should of tested that before making a new world,

I've seen something like this happen on Jadedcats stream with thousands of Imps, but that was fixed by the Natura & BoP guys, I think I also could have use for essentials to do the KILLMOB/ENTITIES command... not sure if that would even work, heres hoping it wont happen again or to anyone with a built up world

 

[Adonis0]

Well, to fix there being that many mobs at the very least is to move 128 blocks away from them

Not sure if they'll just spawn again when you come back though

 

[Saice]

if it is singel player you dont even need to move. Just go to options and set it to peacful and Poof gone then set it back to what you want.

 

[PeggleFrank]

if it is singel player you dont even need to move. Just go to options and set it to peacful and Poof gone then set it back to what you want.

Still won't help. Slimes can spawn in nearby swamp biomes and if there's any light coming from somewhere (i.e. his house) then peaceful animals will start spawning instead.

Squid may be able to spawn in darkness as well, not sure.

 

[ICountFrom0]

That, is clearly the work of Herobrine. For your own sake put yourself into peaceful, just this very moment.

It won't save you from him, he will still kill you and take your place, but it will remove his minions and slow him down.

 

[Yusunoha]

it's like the creepers and the zombies are at war or something

 

[Bigglesworth]

This has happened to me. I logged out and back in and they doubled. Corrupt chunk.

http://www.minecraftforum.net/topic/302380-minecraft-region-fixer/

Try that

Im left with a faint desire for implementation of war mechanics a la SimAnt.

 

[tehBlobLord]

Still won't help. Slimes can spawn in nearby swamp biomes and if there's any light coming from somewhere (i.e. his house) then peaceful animals will start spawning instead.

Squid may be able to spawn in darkness as well, not sure.

Slimes only spawn in certain moon phases, although they can spawn underground, they shouldn't on peaceful.
Peaceful mobs (cows and stuff) will not spawn 99 percent of the time, because they're considered "Persistant" AKA if you kill them all, they're gone.
However, they WILL spawn if you are incredibly lucky with your chunks, and even then there are lots of other conditions too.
Squids will spawn in any water above Y=40 ish, so they might be a problem.

 

[Dravarden]

corrupted chunk that spawns thousands of a certain mob.

fix: delete the chunk.