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Improvements to Logging Warnings/Dupe Entities - Resolves #1544

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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.
This commit is contained in:
Aikar
2018-10-07 14:58:53 -04:00
parent 92e277e36b
commit 9f3623d30d
24 changed files with 77 additions and 82 deletions
Download Patch File Download Diff File Expand all files Collapse all files

56
Spigot-Server-Patches/Duplicate-UUID-Resolve-Option.patch
View File

@@ -33,7 +33,7 @@ But for those who are ok with leaving this inconsistent behavior, you may use WA
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 deb0d4f053..249af8b4c6 100644
index deb0d4f053..75b591bc2a 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -0,0 +0,0 @@ public class PaperWorldConfig {
@@ -42,7 +42,7 @@ index deb0d4f053..249af8b4c6 100644
}
+
+ public enum DuplicateUUIDMode {
+ SAFE_REGEN, REGEN, DELETE, NOTHING, WARN
+ SAFE_REGEN, DELETE, NOTHING, WARN
+ }
+ public DuplicateUUIDMode duplicateUUIDMode = DuplicateUUIDMode.SAFE_REGEN;
+ public int duplicateUUIDDeleteRange = 32;
@@ -50,15 +50,12 @@ index deb0d4f053..249af8b4c6 100644
+ 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: Safer Regenerate New UUID (Delete likely duplicates within " + duplicateUUIDDeleteRange + " blocks)");
+ break;
+ case "regen":
+ case "regenerate":
+ duplicateUUIDMode = DuplicateUUIDMode.REGEN;
+ log("Duplicate UUID Resolve: Regenerate New UUID");
+ log("Duplicate UUID Resolve: Regenerate New UUID if distant (Delete likely duplicates within " + duplicateUUIDDeleteRange + " blocks)");
+ break;
+ case "remove":
+ case "delete":
@@ -69,7 +66,6 @@ index deb0d4f053..249af8b4c6 100644
+ 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":
@@ -78,14 +74,14 @@ index deb0d4f053..249af8b4c6 100644
+ break;
+ default:
+ duplicateUUIDMode = DuplicateUUIDMode.WARN;
+ logError("Warning: Invalidate duplicate-uuid-resolver config " + desiredMode + " - must be one of: regen, delete, nothing, 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 0a40488586..60829fded7 100644
index 0a40488586..1245576e8a 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -0,0 +0,0 @@
@@ -121,7 +117,7 @@ index 0a40488586..60829fded7 100644
List entityslice = aentityslice[j]; // Spigot
+ // Paper start
+ DuplicateUUIDMode mode = world.paperConfig.duplicateUUIDMode;
+ if (mode == DuplicateUUIDMode.WARN || mode == DuplicateUUIDMode.DELETE || mode == DuplicateUUIDMode.REGEN || mode == DuplicateUUIDMode.SAFE_REGEN) {
+ if (mode == DuplicateUUIDMode.WARN || mode == DuplicateUUIDMode.DELETE || mode == DuplicateUUIDMode.SAFE_REGEN) {
+ Map<UUID, Entity> thisChunk = new HashMap<>();
+ for (Iterator<Entity> iterator = ((List<Entity>) entityslice).iterator(); iterator.hasNext(); ) {
+ Entity entity = iterator.next();
@@ -136,27 +132,26 @@ index 0a40488586..60829fded7 100644
+ && java.util.Objects.equals(other.getSaveID(), entity.getSaveID())
+ && entity.getBukkitEntity().getLocation().distance(other.getBukkitEntity().getLocation()) < world.paperConfig.duplicateUUIDDeleteRange
+ ) {
+ 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.");
+ 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:
+ case REGEN: {
+ case SAFE_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.");
+ 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: {
+ 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.");
+ 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:
+ 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.");
+ 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;
+ }
+ }
@@ -180,7 +175,7 @@ index 3606c78843..57adaf2a4c 100644
this.uniqueID = uuid;
this.au = this.uniqueID.toString();
diff --git a/src/main/java/net/minecraft/server/World.java b/src/main/java/net/minecraft/server/World.java
index ee2cdb897c..956eabd7dc 100644
index a341f5de9a..61c260a2fb 100644
--- a/src/main/java/net/minecraft/server/World.java
+++ b/src/main/java/net/minecraft/server/World.java
@@ -0,0 +0,0 @@ public abstract class World implements IEntityAccess, GeneratorAccess, IIBlockAc
@@ -193,7 +188,7 @@ index ee2cdb897c..956eabd7dc 100644
public final List<TileEntity> tileEntityListTick = Lists.newArrayList();
private final List<TileEntity> c = Lists.newArrayList();
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index f6becaae43..f7078ded5c 100644
index 7eab55e7c1..0e63a0b5cd 100644
--- a/src/main/java/net/minecraft/server/WorldServer.java
+++ b/src/main/java/net/minecraft/server/WorldServer.java
@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
@@ -209,25 +204,10 @@ index f6becaae43..f7078ded5c 100644
this.g.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;
}
+ if (DEBUG_ENTITIES && 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("Deleting duplicate entity {}", entity); // Paper
@@ -0,0 +0,0 @@ public class WorldServer extends World implements IAsyncTaskHandler {
}