How can I keep specific chunks loaded with command blocks? [duplicate]

I'm looking for a way to keep specific chunks loaded with a command block loop or permanent command, because I have a large world with lots of redstone and I have to keep moving with the redstone signals so that they finish their signal. This is for Bukkit MC 1.9.2 with multiple worlds loaded on it.

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2 Answers

It sounds like you've already built your redstone contraptions. The simplest thing you can do, since spawn points keep the world loaded in a 128 block radius, is to use the /setworldspawn command to move the world spawn to the middle of your redstone devices. This should be enough to keep at least one device working at all times.

Unfortunately, if your device is unusually large, you cannot use command blocks to move the worldspawn along with the current. According to the wiki:

new spawn chunks won't be loaded by this command until a player moves within range.

If you do have multiple or large devices that need to remain operational, I might recommend using bots/alts to keep the necessary chunks loaded.

Sources:

• r/minecraft: Is there a way to keep a chunk loaded on SMP?
• Arqade: How far can redstone current travel?
• Minecraft Wiki: Commands/setworldspawn

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You can turn your render distance up or go afk with your player ingame. Sorry, but that is the best, and simplest answer. There is no plugin for it, as minecraft mechanics do not allow it.