geforkt von Mirrors/Paper
208 Zeilen
11 KiB
Diff
208 Zeilen
11 KiB
Diff
From 60078ed225caffbeab2732eb4a64364d9d342341 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 14c8edeff..e3f6557e1 100644
|
|
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
|
|
@@ -541,4 +541,40 @@ public class PaperWorldConfig {
|
|
log("Bed Search Radius: " + bedSearchRadius);
|
|
}
|
|
}
|
|
+
|
|
+ public enum DuplicateUUIDMode {
|
|
+ REGEN, DELETE, NOTHING, WARN
|
|
+ }
|
|
+ public DuplicateUUIDMode duplicateUUIDMode = DuplicateUUIDMode.REGEN;
|
|
+ public void repairDuplicateUUID() {
|
|
+ String desiredMode = getString("duplicate-uuid-resolver", "regenerate").toLowerCase().trim();
|
|
+ switch (desiredMode.toLowerCase()) {
|
|
+ case "regen":
|
|
+ case "regenerate":
|
|
+ duplicateUUIDMode = DuplicateUUIDMode.REGEN;
|
|
+ log("Duplicate UUID Resolve: Regenerate New UUID");
|
|
+ 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");
|
|
+ logError("PaperMC Strongly discourages use of this setting! Triggering these messages means SOMETHING IS WRONG!");
|
|
+ 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: Invalidate 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 04adf4e3c..b31c301ec 100644
|
|
--- a/src/main/java/net/minecraft/server/Chunk.java
|
|
+++ b/src/main/java/net/minecraft/server/Chunk.java
|
|
@@ -1,5 +1,10 @@
|
|
package net.minecraft.server;
|
|
|
|
+// Paper start
|
|
+import com.destroystokyo.paper.PaperWorldConfig.DuplicateUUIDMode;
|
|
+import java.util.HashMap;
|
|
+import java.util.UUID;
|
|
+// Paper end
|
|
import com.destroystokyo.paper.exception.ServerInternalException;
|
|
import com.google.common.base.Predicate;
|
|
import com.google.common.collect.Maps;
|
|
@@ -31,6 +36,7 @@ public class Chunk {
|
|
public final World world;
|
|
public final int[] heightMap;
|
|
public Long scheduledForUnload; // Paper - delay chunk unloads
|
|
+ private static final Logger logger = LogManager.getLogger(); // Paper
|
|
public final int locX;
|
|
public final int locZ;
|
|
private boolean m;
|
|
@@ -658,6 +664,7 @@ public class Chunk {
|
|
if (i != this.locX || j != this.locZ) {
|
|
Chunk.e.warn("Wrong location! ({}, {}) should be ({}, {}), {}", Integer.valueOf(i), Integer.valueOf(j), Integer.valueOf(this.locX), Integer.valueOf(this.locZ), entity);
|
|
entity.die();
|
|
+ return; // Paper
|
|
}
|
|
|
|
int k = MathHelper.floor(entity.locY / 16.0D);
|
|
@@ -851,6 +858,35 @@ public class Chunk {
|
|
|
|
for (int j = 0; j < i; ++j) {
|
|
List entityslice = aentityslice[j]; // Spigot
|
|
+ // Paper start
|
|
+ DuplicateUUIDMode mode = world.paperConfig.duplicateUUIDMode;
|
|
+ if (mode == DuplicateUUIDMode.DELETE || mode == DuplicateUUIDMode.REGEN) {
|
|
+ Map<UUID, Entity> thisChunk = new HashMap<>();
|
|
+ for (Iterator<Entity> iterator = ((List<Entity>) entityslice).iterator(); iterator.hasNext(); ) {
|
|
+ Entity entity = iterator.next();
|
|
+ Entity other = ((WorldServer) world).entitiesByUUID.get(entity.uniqueID);
|
|
+ if (other == null) {
|
|
+ other = thisChunk.get(entity.uniqueID);
|
|
+ }
|
|
+ if (other != null) {
|
|
+ switch (mode) {
|
|
+ case REGEN: {
|
|
+ entity.setUUID(UUID.randomUUID());
|
|
+ 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: {
|
|
+ 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;
|
|
+ }
|
|
+ }
|
|
+ }
|
|
+ thisChunk.put(entity.uniqueID, entity);
|
|
+ }
|
|
+ }
|
|
+ // Paper end
|
|
|
|
this.world.a((Collection) entityslice);
|
|
}
|
|
diff --git a/src/main/java/net/minecraft/server/Entity.java b/src/main/java/net/minecraft/server/Entity.java
|
|
index 0d3af8cb7..7188d0c99 100644
|
|
--- a/src/main/java/net/minecraft/server/Entity.java
|
|
+++ b/src/main/java/net/minecraft/server/Entity.java
|
|
@@ -2614,6 +2614,7 @@ public abstract class Entity implements ICommandListener, KeyedObject { // Paper
|
|
});
|
|
}
|
|
|
|
+ public void setUUID(UUID uuid) { a(uuid); } // Paper - OBFHELPER
|
|
public void a(UUID uuid) {
|
|
this.uniqueID = uuid;
|
|
this.ar = this.uniqueID.toString();
|
|
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
|
|
index 994d4bbb8..1244baf45 100644
|
|
--- a/src/main/java/net/minecraft/server/WorldServer.java
|
|
+++ b/src/main/java/net/minecraft/server/WorldServer.java
|
|
@@ -42,7 +42,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
|
|
private final PlayerChunkMap manager;
|
|
// private final Set<NextTickListEntry> nextTickListHash = Sets.newHashSet();
|
|
private final HashTreeSet<NextTickListEntry> nextTickList = new HashTreeSet<NextTickListEntry>(); // CraftBukkit - HashTreeSet
|
|
- private final Map<UUID, Entity> entitiesByUUID = Maps.newHashMap();
|
|
+ public final Map<UUID, Entity> entitiesByUUID = Maps.newHashMap(); // Paper
|
|
public boolean savingDisabled;
|
|
private boolean Q;
|
|
private int emptyTime;
|
|
@@ -1177,14 +1177,17 @@ public class WorldServer extends World implements IAsyncTaskHandler {
|
|
this.f.remove(entity1);
|
|
} else {
|
|
if (!(entity instanceof EntityHuman)) {
|
|
- WorldServer.a.error("Keeping entity {} that already exists with UUID {}", entity1, uuid.toString()); // CraftBukkit // Paper
|
|
- WorldServer.a.error("Deleting duplicate entity {}", entity); // Paper
|
|
- if (DEBUG_ENTITIES) {
|
|
- if (entity1.addedToWorldStack != null) {
|
|
- entity1.addedToWorldStack.printStackTrace();
|
|
+ if (entity.world.paperConfig.duplicateUUIDMode != com.destroystokyo.paper.PaperWorldConfig.DuplicateUUIDMode.NOTHING) {
|
|
+ WorldServer.a.error("Keeping entity {} that already exists with UUID {}", entity1, uuid.toString()); // CraftBukkit // Paper
|
|
+ WorldServer.a.error("Duplicate entity {} will not be added to the world. See paper.yml duplicate-uuid-resolver and set this to either regen, delete or nothing to get rid of this message", entity); // Paper
|
|
+ if (DEBUG_ENTITIES) {
|
|
+ if (entity1.addedToWorldStack != null) {
|
|
+ entity1.addedToWorldStack.printStackTrace();
|
|
+ }
|
|
+ getAddToWorldStackTrace(entity).printStackTrace();
|
|
}
|
|
- getAddToWorldStackTrace(entity).printStackTrace();
|
|
}
|
|
+
|
|
return false;
|
|
}
|
|
|
|
@@ -1206,7 +1209,7 @@ public class WorldServer extends World implements IAsyncTaskHandler {
|
|
entity.addedToWorldStack = getAddToWorldStackTrace(entity);
|
|
}
|
|
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) {
|
|
Logger logger = LogManager.getLogger();
|
|
logger.error("Overwrote an existing entity " + old + " with " + entity);
|
|
if (DEBUG_ENTITIES) {
|
|
--
|
|
2.18.0
|
|
|