2a2d9fb508
1) Removed "Regen" mode of Dupe UUID resolver, forced safe. Some servers who updated before we had safe mode added still had this value. There's really no reason to keep this mode, as we've seen that vanilla triggers this often and 99.9999999% of cases will be an actual duplicate that needs to be deleted. 2) Made Vanilla Debug messages about dupe UUIDs and dupe uuid resolve messages only show up if the debug.entities flag is on. This will stop server owners from panicing from seeing these logs, and stop opening bug reports on this, only for us to tell you "don't worry about it". 3) Avoid adding entities to world that are already added to world. This can be triggered by anything that causes an entity to be added to the world during the chunk load process, such as chunk conversions. Issue #1544 was a case of this. 4) Removed debug warning about ExpiringMap. Nothing more I know to do about this anyways. We recover from it, stop warning to reduce noise of issues to us.
90 lines
4 KiB
Diff
90 lines
4 KiB
Diff
From 1c77a390555dd8816d8eac24937a48a4f46a402e Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Mon, 23 Jul 2018 22:44:23 -0400
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Subject: [PATCH] Add some Debug to Chunk Entity slices
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If we detect unexpected state, log and try to recover
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This should hopefully avoid duplicate entities ever being created
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if the entity was to end up in 2 different chunk slices
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diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
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index 3c3d44ffbd..0f79ad9588 100644
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--- a/src/main/java/net/minecraft/server/Chunk.java
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+++ b/src/main/java/net/minecraft/server/Chunk.java
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@@ -709,8 +709,34 @@ public class Chunk implements IChunkAccess {
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entity.ae = this.locX;
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entity.af = k;
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entity.ag = this.locZ;
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- this.entitySlices[k].add(entity);
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+
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// Paper start
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+ List<Entity> entitySlice = this.entitySlices[k];
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+ boolean inThis = entitySlice.contains(entity);
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+ List<Entity> currentSlice = entity.entitySlice;
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+ if ((currentSlice != null && currentSlice.contains(entity)) || inThis) {
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+ if (currentSlice == entitySlice || inThis) {
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+ LogManager.getLogger().warn(entity + " was already in this chunk section! Report this to https://github.com/PaperMC/Paper/issues/1302");
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+ new Throwable().printStackTrace();
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+ return;
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+ } else {
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+ LogManager.getLogger().warn(entity + " is still in another ChunkSection! Report this to https://github.com/PaperMC/Paper/issues/1302");
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+
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+ Chunk chunk = entity.getCurrentChunk();
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+ if (chunk != null) {
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+ if (chunk != this) {
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+ LogManager.getLogger().warn(entity + " was in another chunk at that! " + chunk.locX + "," + chunk.locZ);
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+ }
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+ chunk.removeEntity(entity);
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+ } else {
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+ removeEntity(entity);
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+ }
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+ new Throwable().printStackTrace();
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+ }
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+ }
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+ entity.entitySlice = entitySlice;
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+ entitySlice.add(entity);
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+
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this.markDirty();
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if (entity instanceof EntityItem) {
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itemCounts[k]++;
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@@ -740,9 +766,13 @@ public class Chunk implements IChunkAccess {
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i = this.entitySlices.length - 1;
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}
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// Paper start
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- if (!this.entitySlices[i].remove(entity)) {
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- return;
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+ if (entity.entitySlice == null || !entity.entitySlice.contains(entity) || entitySlices[i] == entity.entitySlice) {
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+ entity.entitySlice = null;
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+ } else {
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+ LogManager.getLogger().warn(entity + " was removed from a entitySlice we did not expect. Report this to https://github.com/PaperMC/Paper/issues/1302");
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+ new Throwable().printStackTrace();
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}
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+ if (!this.entitySlices[i].remove(entity)) { return; }
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this.markDirty();
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if (entity instanceof EntityItem) {
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itemCounts[i]--;
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@@ -1015,6 +1045,7 @@ public class Chunk implements IChunkAccess {
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}
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// Spigot End
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entity.setCurrentChunk(null); // Paper
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+ entity.entitySlice = null; // Paper
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// Do not pass along players, as doing so can get them stuck outside of time.
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// (which for example disables inventory icon updates and prevents block breaking)
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diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
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index 0381f8e658..965cd592f3 100644
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--- a/src/main/java/net/minecraft/server/Entity.java
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+++ b/src/main/java/net/minecraft/server/Entity.java
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@@ -64,6 +64,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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}
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}
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};
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+ List<Entity> entitySlice = null;
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// Paper end
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static boolean isLevelAtLeast(NBTTagCompound tag, int level) {
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return tag.hasKey("Bukkit.updateLevel") && tag.getInt("Bukkit.updateLevel") >= level;
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--
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2.19.0
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