geforkt von Mirrors/Paper
6fda3fd0ed
This makes it so entities that are passengers of other entities no longer count in the parents timings, as well as tracks them as a separate timers per their tick status. This lets you see how much time is spent in activated entities vs inactive (as inactive still has to do work) Passengers is also tracked separately so you can identify "Villagers in Minecarts" vs roaming villagers, as the lack of ability to move can impact their performance characteristics. This will likely break any plugin that was naughty and directly messed with our internal timings as this moves the timings to the EntityTypes object, speeding up creation of Entities to no longer store a timing handler object per entity. This will also change the output of the entities in timings to use internal ID's instead of class names. If a plugin is broken by this, shame them for doing bad things. Paper will not fix it, they will have to fix it.
235 Zeilen
12 KiB
Diff
235 Zeilen
12 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sat, 21 Jul 2018 14:27:34 -0400
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Subject: [PATCH] Duplicate UUID Resolve Option
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Due to a bug in https://github.com/PaperMC/Paper/commit/2e29af3df05ec0a383f48be549d1c03200756d24
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which was added all the way back in March of 2016, it was unknown (potentially not at the time)
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that an entity might actually change the seed of the random object.
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At some point, EntitySquid did start setting the seed. Due to this shared random, this caused
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every entity to use a Random object with a predictable seed.
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This has caused entities to potentially generate with the same UUID....
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Over the years, servers have had entities disappear, but no sign of trouble
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because CraftBukkit removed the log lines indicating that something was wrong.
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We have fixed the root issue causing duplicate UUID's, however we now have chunk
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files full of entities that have the same UUID as another entity!
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When these chunks load, the 2nd entity will not be added to the world correctly.
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If that chunk loads in a different order in the future, then it will reverse and the
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missing one is now the one added to the world and not the other. This results in very
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inconsistent entity behavior.
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This change allows you to recover any duplicate entity by generating a new UUID for it.
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This also lets you delete them instead if you don't want to risk having new entities added to
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the world that you previously did not see.
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But for those who are ok with leaving this inconsistent behavior, you may use WARN or NOTHING options.
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It is recommended you regenerate the entities, as these were legit entities, and deserve your love.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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index 15e1f9f65280043853544d3bf796f991df2482de..21910dfd1a533e923a8a73e92fea25685a07b445 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
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@@ -394,4 +394,43 @@ public class PaperWorldConfig {
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private void preventMovingIntoUnloadedChunks() {
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preventMovingIntoUnloadedChunks = getBoolean("prevent-moving-into-unloaded-chunks", false);
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}
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+
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+ public enum DuplicateUUIDMode {
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+ SAFE_REGEN, DELETE, NOTHING, WARN
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+ }
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+ public DuplicateUUIDMode duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
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+ public int duplicateUUIDDeleteRange = 32;
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+ private void repairDuplicateUUID() {
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+ String desiredMode = getString("duplicate-uuid-resolver", "saferegen").toLowerCase().trim();
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+ duplicateUUIDDeleteRange = getInt("duplicate-uuid-saferegen-delete-range", duplicateUUIDDeleteRange);
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+ switch (desiredMode.toLowerCase()) {
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+ case "regen":
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+ case "regenerate":
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+ case "saferegen":
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+ case "saferegenerate":
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+ duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
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+ log("Duplicate UUID Resolve: Regenerate New UUID if distant (Delete likely duplicates within " + duplicateUUIDDeleteRange + " blocks)");
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+ break;
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+ case "remove":
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+ case "delete":
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+ duplicateUUIDMode = DuplicateUUIDMode.DELETE;
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+ log("Duplicate UUID Resolve: Delete Entity");
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+ break;
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+ case "silent":
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+ case "nothing":
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+ duplicateUUIDMode = DuplicateUUIDMode.NOTHING;
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+ logError("Duplicate UUID Resolve: Do Nothing (no logs) - Warning, may lose indication of bad things happening");
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+ break;
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+ case "log":
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+ case "warn":
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+ duplicateUUIDMode = DuplicateUUIDMode.WARN;
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+ log("Duplicate UUID Resolve: Warn (do nothing but log it happened, may be spammy)");
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+ break;
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+ default:
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+ duplicateUUIDMode = DuplicateUUIDMode.WARN;
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+ logError("Warning: Invalid duplicate-uuid-resolver config " + desiredMode + " - must be one of: regen, delete, nothing, warn");
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+ log("Duplicate UUID Resolve: Warn (do nothing but log it happened, may be spammy)");
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+ break;
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+ }
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+ }
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}
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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 5ee581d1634f44a98756c5d11def9c3d46fd53e9..8e3244fc5c6e5fff22857637b4ab5944d6b1e165 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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@@ -499,6 +499,7 @@ public class Chunk implements IChunkAccess {
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if (i != this.loc.x || j != this.loc.z) {
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Chunk.LOGGER.warn("Wrong location! ({}, {}) should be ({}, {}), {}", i, j, this.loc.x, this.loc.z, entity);
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entity.dead = true;
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+ return; // Paper
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}
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int k = MathHelper.floor(entity.locY() / 16.0D);
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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 586f55cb78c639ed0079994d13d934b22c686002..ca24d27cbc3100e989bf26c0f3f57cad3f97c11f 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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@@ -2691,6 +2691,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
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});
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}
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+ public final void setUUID(UUID uuid) { a_(uuid); } // Paper - OBFHELPER
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public void a_(UUID uuid) {
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this.uniqueID = uuid;
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this.ae = this.uniqueID.toString();
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diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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index 4bbcd00950405a4bf3ce391b557049a3b1d4aee8..2db0f3e060850ae65033f878ed46b678686a03f9 100644
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--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
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+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
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@@ -1,6 +1,7 @@
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package net.minecraft.server;
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import co.aikar.timings.Timing; // Paper
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+import com.destroystokyo.paper.PaperWorldConfig; // Paper
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import com.google.common.collect.ImmutableList;
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import com.google.common.collect.Iterables;
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import com.google.common.collect.ComparisonChain; // Paper
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@@ -23,14 +24,17 @@ import it.unimi.dsi.fastutil.objects.ObjectIterator;
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import java.io.File;
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import java.io.IOException;
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import java.io.Writer;
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+import java.util.HashMap; // Paper
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.List;
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+import java.util.Map; // Paper
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import java.util.Objects;
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import java.util.Optional;
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import java.util.Queue;
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import java.util.Set;
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import java.util.concurrent.CancellationException;
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+import java.util.UUID; // Paper
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import java.util.concurrent.CompletableFuture;
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import java.util.concurrent.CompletionException;
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import java.util.concurrent.Executor;
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@@ -651,12 +655,12 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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// CraftBukkit start - these are spawned serialized (DefinedStructure) and we don't call an add event below at the moment due to ordering complexities
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boolean needsRemoval = false;
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if (chunk.needsDecoration && !this.world.getServer().getServer().getSpawnNPCs() && entity instanceof NPC) {
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- entity.die();
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+ entity.dead = true; // Paper
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needsRemoval = true;
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}
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-
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- if (!(entity instanceof EntityHuman) && (needsRemoval || !this.world.addEntityChunk(entity))) {
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- // CraftBukkit end
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+ // CraftBukkit end
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+ checkDupeUUID(entity); // Paper
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+ if (!(entity instanceof EntityHuman) && (entity.dead || !this.world.addEntityChunk(entity))) { // Paper
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if (list == null) {
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list = Lists.newArrayList(new Entity[]{entity});
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} else {
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@@ -683,6 +687,44 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
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});
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}
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+ // Paper start
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+ private void checkDupeUUID(Entity entity) {
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+ PaperWorldConfig.DuplicateUUIDMode mode = world.paperConfig.duplicateUUIDMode;
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+ if (mode != PaperWorldConfig.DuplicateUUIDMode.WARN
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+ && mode != PaperWorldConfig.DuplicateUUIDMode.DELETE
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+ && mode != PaperWorldConfig.DuplicateUUIDMode.SAFE_REGEN) {
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+ return;
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+ }
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+ Entity other = world.getEntity(entity.uniqueID);
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+
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+ if (mode == PaperWorldConfig.DuplicateUUIDMode.SAFE_REGEN && other != null && !other.dead
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+ && Objects.equals(other.getSaveID(), entity.getSaveID())
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+ && entity.getBukkitEntity().getLocation().distance(other.getBukkitEntity().getLocation()) < world.paperConfig.duplicateUUIDDeleteRange
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+ ) {
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+ if (World.DEBUG_ENTITIES) LOGGER.warn("[DUPE-UUID] Duplicate UUID found used by " + other + ", deleted entity " + entity + " because it was near the duplicate and likely an actual duplicate. See https://github.com/PaperMC/Paper/issues/1223 for discussion on what this is about.");
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+ entity.dead = true;
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+ return;
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+ }
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+ if (other != null && !other.dead) {
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+ switch (mode) {
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+ case SAFE_REGEN: {
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+ entity.setUUID(UUID.randomUUID());
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+ if (World.DEBUG_ENTITIES) LOGGER.warn("[DUPE-UUID] Duplicate UUID found used by " + other + ", regenerated UUID for " + entity + ". See https://github.com/PaperMC/Paper/issues/1223 for discussion on what this is about.");
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+ break;
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+ }
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+ case DELETE: {
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+ if (World.DEBUG_ENTITIES) LOGGER.warn("[DUPE-UUID] Duplicate UUID found used by " + other + ", deleted entity " + entity + ". See https://github.com/PaperMC/Paper/issues/1223 for discussion on what this is about.");
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+ entity.dead = true;
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+ break;
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+ }
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+ default:
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+ if (World.DEBUG_ENTITIES) LOGGER.warn("[DUPE-UUID] Duplicate UUID found used by " + other + ", doing nothing to " + entity + ". See https://github.com/PaperMC/Paper/issues/1223 for discussion on what this is about.");
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+ break;
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+ }
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+ }
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+ }
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+ // Paper end
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+
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public CompletableFuture<Either<Chunk, PlayerChunk.Failure>> a(PlayerChunk playerchunk) {
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ChunkCoordIntPair chunkcoordintpair = playerchunk.i();
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CompletableFuture<Either<List<IChunkAccess>, PlayerChunk.Failure>> completablefuture = this.a(chunkcoordintpair, 1, (i) -> {
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diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
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index d9e87ef45970cefa8e9cd49b257b344c316c4dd2..01b72f5555fb8d9ce95deecf77301ed84e6049db 100644
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--- a/src/main/java/net/minecraft/server/WorldServer.java
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+++ b/src/main/java/net/minecraft/server/WorldServer.java
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@@ -4,6 +4,8 @@ import com.google.common.annotations.VisibleForTesting;
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import com.google.common.collect.Iterables;
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import co.aikar.timings.TimingHistory; // Paper
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import co.aikar.timings.Timings; // Paper
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+
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+import com.destroystokyo.paper.PaperWorldConfig; // Paper
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import com.google.common.collect.Lists;
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import com.google.common.collect.Maps;
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import com.google.common.collect.Queues;
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@@ -992,7 +994,22 @@ public class WorldServer extends World implements GeneratorAccessSeed {
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if (entity1 == null) {
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return false;
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} else {
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+ // Paper start
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+ if (entity1.dead) {
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+ unregisterEntity(entity1); // remove the existing entity
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+ return false;
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+ }
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+ // Paper end
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WorldServer.LOGGER.warn("Trying to add entity with duplicated UUID {}. Existing {}#{}, new: {}#{}", uuid, EntityTypes.getName(entity1.getEntityType()), entity1.getId(), EntityTypes.getName(entity.getEntityType()), entity.getId()); // CraftBukkit // Paper
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+ // Paper start
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+ if (DEBUG_ENTITIES && entity.world.paperConfig.duplicateUUIDMode != PaperWorldConfig.DuplicateUUIDMode.NOTHING) {
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+ if (entity1.addedToWorldStack != null) {
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+ entity1.addedToWorldStack.printStackTrace();
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+ }
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+
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+ getAddToWorldStackTrace(entity).printStackTrace();
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+ }
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+ // Paper end
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return true;
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}
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}
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