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Restore some entity duplication fix patches

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Shane Freeder 2019-05-18 06:01:44 +01:00
parent 2e18e54a83
commit da3b503596
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GPG key ID: A3F61EA5A085289C
3 changed files with 295 additions and 5 deletions
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10
Spigot-Server-Patches/0392-Fix-CraftServer-isPrimaryThread-and-MinecraftServer-.patch
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@ -1,4 +1,4 @@
From 32cdfb9500efe574a54465daca2204f8fe78d4a2 Mon Sep 17 00:00:00 2001
From 3dabcd7c52beadaadbc2858a38b0252c2b8dca51 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Mon, 13 May 2019 21:10:59 -0700
Subject: [PATCH] Fix CraftServer#isPrimaryThread and MinecraftServer
@ -11,12 +11,12 @@ of behavior for this exact reason.
md_5 also placed code in PlayerConnectionUtils that would have
solved https://bugs.mojang.com/browse/MC-142590, making the change
to MinecraftServer#isMainThread irrelevant.
By reverting his change to MinecraftServer#isMainThread packet
handling that should have been handled synchronously will be handled
By reverting his change to MinecraftServer#isMainThread packet
handling that should have been handled synchronously will be handled
synchronously when the server gets shut down.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 70f730996c..73ac45bf7a 100644
index 70f730996..73ac45bf7 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -1945,7 +1945,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
@ -29,7 +29,7 @@ index 70f730996c..73ac45bf7a 100644
@Deprecated
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 56e8a613e9..22d53844c5 100644
index 56e8a613e..22d53844c 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -1663,7 +1663,7 @@ public final class CraftServer implements Server {

45
Spigot-Server-Patches/0394-Fix-issues-with-entity-loss-due-to-unloaded-chunks.patch Normal file
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@ -0,0 +1,45 @@
From 2e068ac2b2742367af91c3c6329df5c6daa58979 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 28 Sep 2018 21:49:53 -0400
Subject: [PATCH] Fix issues with entity loss due to unloaded chunks
Vanilla has risk of losing entities by causing them to be
removed from all chunks if they try to move into an unloaded chunk.
This pretty much means high chance this entity will be lost in this
scenario.
There is another case that adding an entity to the world can fail if
the chunk isn't loaded.
Lots of the server is designed around addEntity never expecting to fail
for these reasons, nor is it really logical.
This change ensures the chunks are always loaded when entities are
added to the world, or a valid entity moves between chunks.
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 1a01e5e69..be3ce3f13 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -635,7 +635,7 @@ public class WorldServer extends World {
this.getChunkAt(entity.chunkX, entity.chunkZ).a(entity, entity.chunkY);
}
- if (!entity.bT() && !this.isChunkLoaded(i, k)) {
+ if (!entity.valid && !entity.bT() && !this.isChunkLoaded(i, k)) { // Paper - always load chunks to register valid entities location
entity.inChunk = false;
} else {
this.getChunkAt(i, k).a(entity);
@@ -950,7 +950,7 @@ public class WorldServer extends World {
return false;
}
// CraftBukkit end
- IChunkAccess ichunkaccess = this.getChunkAt(MathHelper.floor(entity.locX / 16.0D), MathHelper.floor(entity.locZ / 16.0D), ChunkStatus.FULL, entity.attachedToPlayer);
+ IChunkAccess ichunkaccess = this.getChunkAt(MathHelper.floor(entity.locX / 16.0D), MathHelper.floor(entity.locZ / 16.0D), ChunkStatus.FULL, true); // Paper - always load chunks for entity adds
if (!(ichunkaccess instanceof Chunk)) {
return false;
--
2.21.0

245
Spigot-Server-Patches/0395-Duplicate-UUID-Resolve-Option.patch Normal file
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@ -0,0 +1,245 @@
From 7c17dfd40b62a1e3e8f0cc2e0d0a7f46513e109f Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 21 Jul 2018 14:27:34 -0400
Subject: [PATCH] Duplicate UUID Resolve Option
Due to a bug in https://github.com/PaperMC/Paper/commit/2e29af3df05ec0a383f48be549d1c03200756d24
which was added all the way back in March of 2016, it was unknown (potentially not at the time)
that an entity might actually change the seed of the random object.
At some point, EntitySquid did start setting the seed. Due to this shared random, this caused
every entity to use a Random object with a predictable seed.
This has caused entities to potentially generate with the same UUID....
Over the years, servers have had entities disappear, but no sign of trouble
because CraftBukkit removed the log lines indicating that something was wrong.
We have fixed the root issue causing duplicate UUID's, however we now have chunk
files full of entities that have the same UUID as another entity!
When these chunks load, the 2nd entity will not be added to the world correctly.
If that chunk loads in a different order in the future, then it will reverse and the
missing one is now the one added to the world and not the other. This results in very
inconsistent entity behavior.
This change allows you to recover any duplicate entity by generating a new UUID for it.
This also lets you delete them instead if you don't want to risk having new entities added to
the world that you previously did not see.
But for those who are ok with leaving this inconsistent behavior, you may use WARN or NOTHING options.
It is recommended you regenerate the entities, as these were legit entities, and deserve your love.
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index ef882b897..385b3ac0c 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -449,4 +449,43 @@ public class PaperWorldConfig {
log("Using vanilla redstone algorithm.");
}
}
+
+ public enum DuplicateUUIDMode {
+ SAFE_REGEN, DELETE, NOTHING, WARN
+ }
+ public DuplicateUUIDMode duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
+ public int duplicateUUIDDeleteRange = 32;
+ private void repairDuplicateUUID() {
+ String desiredMode = getString("duplicate-uuid-resolver", "saferegen").toLowerCase().trim();
+ duplicateUUIDDeleteRange = getInt("duplicate-uuid-saferegen-delete-range", duplicateUUIDDeleteRange);
+ switch (desiredMode.toLowerCase()) {
+ case "regen":
+ case "regenerate":
+ case "saferegen":
+ case "saferegenerate":
+ duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
+ log("Duplicate UUID Resolve: Regenerate New UUID if distant (Delete likely duplicates within " + duplicateUUIDDeleteRange + " blocks)");
+ break;
+ case "remove":
+ case "delete":
+ duplicateUUIDMode = DuplicateUUIDMode.DELETE;
+ log("Duplicate UUID Resolve: Delete Entity");
+ break;
+ case "silent":
+ case "nothing":
+ duplicateUUIDMode = DuplicateUUIDMode.NOTHING;
+ logError("Duplicate UUID Resolve: Do Nothing (no logs) - Warning, may lose indication of bad things happening");
+ break;
+ case "log":
+ case "warn":
+ duplicateUUIDMode = DuplicateUUIDMode.WARN;
+ log("Duplicate UUID Resolve: Warn (do nothing but log it happened, may be spammy)");
+ break;
+ default:
+ duplicateUUIDMode = DuplicateUUIDMode.WARN;
+ logError("Warning: Invalid duplicate-uuid-resolver config " + desiredMode + " - must be one of: regen, delete, nothing, warn");
+ log("Duplicate UUID Resolve: Warn (do nothing but log it happened, may be spammy)");
+ break;
+ }
+ }
}
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 4d96e4fb1..26cf42a45 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -392,6 +392,7 @@ public class Chunk implements IChunkAccess {
if (i != this.loc.x || j != this.loc.z) {
Chunk.LOGGER.warn("Wrong location! ({}, {}) should be ({}, {}), {}", i, j, this.loc.x, this.loc.z, entity);
entity.dead = true;
+ return; // Paper
}
int k = MathHelper.floor(entity.locY / 16.0D);
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
index d02e48a86..3b1555dd2 100644
--- a/src/main/java/net/minecraft/server/Entity.java
+++ b/src/main/java/net/minecraft/server/Entity.java
@@ -2669,6 +2669,7 @@ public abstract class Entity implements INamableTileEntity, ICommandListener, Ke
});
}
+ public void setUUID(UUID uuid) { a(uuid); } // Paper - OBFHELPER
public void a(UUID uuid) {
this.uniqueID = uuid;
this.ap = this.uniqueID.toString();
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 1cf516192..292fa782d 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -1,5 +1,6 @@
package net.minecraft.server;
+import com.destroystokyo.paper.PaperWorldConfig; // Paper
import com.google.common.collect.ImmutableList;
import co.aikar.timings.Timing;
import com.google.common.collect.ComparisonChain;
@@ -19,11 +20,14 @@ import it.unimi.dsi.fastutil.objects.ObjectIterator;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
+import java.util.HashMap; // Paper
import java.util.Iterator;
import java.util.List;
+import java.util.Map; // Paper
import java.util.Objects;
import java.util.Optional;
import java.util.Set;
+import java.util.UUID; // Paper
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.Executor;
import java.util.concurrent.atomic.AtomicInteger;
@@ -502,12 +506,49 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
for (int j = 0; j < i; ++j) {
List<Entity> entityslice = aentityslice[j]; // Spigot
- Iterator iterator = entityslice.iterator();
- while (iterator.hasNext()) {
- Entity entity = (Entity) iterator.next();
+ // Paper start
+ PaperWorldConfig.DuplicateUUIDMode mode = world.paperConfig.duplicateUUIDMode;
+ if (mode == PaperWorldConfig.DuplicateUUIDMode.WARN || mode == PaperWorldConfig.DuplicateUUIDMode.DELETE || mode == PaperWorldConfig.DuplicateUUIDMode.SAFE_REGEN) {
+ Map<UUID, Entity> thisChunk = new HashMap<>();
+ for (Iterator<Entity> iterator = ((List<Entity>) entityslice).iterator(); iterator.hasNext(); ) {
+ Entity entity = iterator.next();
+ if (entity.dead || entity.valid) continue;
+ Entity other = ((WorldServer) world).getEntity(entity.uniqueID);
+ if (other == null || other.dead) {
+ other = thisChunk.get(entity.uniqueID);
+ }
+
+ if (mode == PaperWorldConfig.DuplicateUUIDMode.SAFE_REGEN && other != null && !other.dead
+ && java.util.Objects.equals(other.getSaveID(), entity.getSaveID())
+ && entity.getBukkitEntity().getLocation().distance(other.getBukkitEntity().getLocation()) < world.paperConfig.duplicateUUIDDeleteRange
+ ) {
+ 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.");
+ entity.die();
+ iterator.remove();
+ continue;
+ }
+ if (other != null && !other.dead) {
+ switch (mode) {
+ case SAFE_REGEN: {
+ entity.setUUID(UUID.randomUUID());
+ 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.");
+ break;
+ }
+ case DELETE: {
+ 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.");
+ entity.die();
+ iterator.remove();
+ break;
+ }
+ default:
+ 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.");
+ break;
+ }
+ }
+
- if (!(entity instanceof EntityHuman) && !this.world.addEntityChunk(entity)) {
+ if (!(entity instanceof EntityHuman) && (entity.dead || !this.world.addEntityChunk(entity))) { // Paper
if (list == null) {
list = Lists.newArrayList(new Entity[] { entity});
} else {
@@ -515,6 +556,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
}
}
}
+ } // Paper
}
if (list != null) {
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index be3ce3f13..3ed12672e 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -2,6 +2,8 @@ package net.minecraft.server;
import co.aikar.timings.TimingHistory;
import co.aikar.timings.Timings;
+
+import com.destroystokyo.paper.PaperWorldConfig;
import com.google.common.collect.Lists;
import com.google.common.collect.Maps;
import com.google.common.collect.Queues;
@@ -977,8 +979,23 @@ public class WorldServer extends World {
if (entity1 == null) {
return false;
} else {
- WorldServer.LOGGER.error("Keeping entity {} that already exists with UUID {}", EntityTypes.getName(entity1.getEntityType()), entity.getUniqueID().toString()); // CraftBukkit // paper
- WorldServer.LOGGER.error("Deleting duplicate entity {}", entity); // CraftBukkit // paper
+ // Paper start
+ if (entity1.dead) {
+ unregisterEntity(entity1); // remove the existing entity
+ return false;
+ }
+
+ if (DEBUG_ENTITIES && entity.world.paperConfig.duplicateUUIDMode != PaperWorldConfig.DuplicateUUIDMode.NOTHING) {
+ WorldServer.LOGGER.error("Keeping entity {} that already exists with UUID {}", EntityTypes.getName(entity1.getEntityType()), entity.getUniqueID().toString()); // CraftBukkit // paper
+ WorldServer.LOGGER.error("Deleting duplicate entity {}", entity); // CraftBukkit // paper
+
+ if (entity1.addedToWorldStack != null) {
+ entity1.addedToWorldStack.printStackTrace();
+ }
+
+ getAddToWorldStackTrace(entity).printStackTrace();
+ }
+ // Paper end
return true;
}
}
@@ -1109,7 +1126,7 @@ public class WorldServer extends World {
}
Entity old = this.entitiesByUUID.put(entity.getUniqueID(), entity);
- if (old != null && old.getId() != entity.getId() && old.valid) {
+ if (old != null && old.getId() != entity.getId() && old.valid && entity.world.paperConfig.duplicateUUIDMode != com.destroystokyo.paper.PaperWorldConfig.DuplicateUUIDMode.NOTHING) { // Paper
Logger logger = LogManager.getLogger();
logger.error("Overwrote an existing entity " + old + " with " + entity);
if (DEBUG_ENTITIES) {
--
2.21.0