DoggyChunks

Using Doggy Talents Next mod, combined with various teleportation mods, can easily result in your dogs getting lost.  Even with the "/dog locate" command you cannot find your dog because it only locates dogs in loaded chunks.  As a result, dogs can exist in the world but become permanently lost.

This mod is a server-side-only mod that will periodically (every 5 seconds) check for lost dogs.  If it finds a dog in an unloaded chunk it will temporarily load that chunk.  If the dog is standing it should automatically teleport to you (the default behavior of the mod), or if it is sitting you can locate it using the "/locate dog" command (or any other method).  

In the future this mod may be expanded to track other modded entities as well, from other mods.