MC-117914

Entities crossing dimensions through nether portal causes tremendous lag

The bug

Every time somebody goes through a nether portal or an entity is sent to another dimension the whole server freezes for 1-2 seconds. The search algorithm for portals seems to be really inefficient.

How to reproduce

Video demonstrating the issue: https://gfycat.com/FriendlyInfiniteGreyhounddog

Status:Fixed

Reporter:ilmango

Assignee:[Mojang] Bartosz Bok

Created:2017-05-25, 10:10 PM

Updated:2020-08-26, 02:15 PM

Resolved:2019-09-03, 10:52 AM

Votes:223

Watchers:56

Confirmation Status:Confirmed

Mojang Priority:Very Important

Category:Chunk loading, Performance

Labels:dimension, entity, nether, nether_portal

Affects Versions:

Minecraft 1.11.2 - 1.14.4

Minecraft 1.11.2, Minecraft 1.12 Pre-Release 5, Minecraft 1.12.1, Minecraft 1.13.1, Minecraft 1.13.2, Minecraft 18w45a, Minecraft 18w47a, Minecraft 18w48a, Minecraft 18w48b, Minecraft 18w49a, Minecraft 18w50a, Minecraft 19w02a, Minecraft 19w03a, Minecraft 1.14 Pre-Release 2, Minecraft 1.14 Pre-Release 3, Minecraft 1.14 Pre-Release 4, Minecraft 1.14 Pre-Release 5, Minecraft 1.14, Minecraft 1.14.1 Pre-Release 1, Minecraft 1.14.1 Pre-Release 2, Minecraft 1.14.1, Minecraft 1.14.2 Pre-Release 3, Minecraft 1.14.2, Minecraft 1.14.3, 1.14.4

Fix Versions:19w36a