PaperMC/Spigot-Server-Patches/Optimize-Persistent-Data-Loading.patch
Shane Freeder a739de61cb Fix PersistentStructureLegacy NPE on custom worlds
This is caused due to the DimensionManager in CB worlds not being
registered by NMS, we fix this by copying CBs behavior of using the
world providers DimensionManager, vs using the actual dimension manager
of the world
2019-03-29 11:37:20 +00:00

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Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Fri, 29 Mar 2019 01:25:11 -0400
Subject: [PATCH] Optimize Persistent Data Loading
removes Mineshaft loading legacy as we had pre 1.13.2 to avoid managing
that very large data file from legacy systems.
Previous to 1.13.2 these data files were never loaded to begin with, so they
effectively do not contain valid/relevant data.
These files take a long time to convert on large worlds and crashes the server.
Additionally, cache the result of a file being missing so we don't keep spam checking it.
diff --git a/src/main/java/net/minecraft/server/WorldPersistentData.java b/src/main/java/net/minecraft/server/WorldPersistentData.java
index 8d51af2867..e86d382c8d 100644
--- a/src/main/java/net/minecraft/server/WorldPersistentData.java
+++ b/src/main/java/net/minecraft/server/WorldPersistentData.java
@@ -0,0 +0,0 @@ public class WorldPersistentData {
@Nullable
public <T extends PersistentBase> T a(Function<String, T> function, String s) {
+ if ("Mineshaft_index".equals(s) || "Mineshaft".equals(s)) return null; // Paper - mineshaft is useless data
T persistentbase = (T) this.data.get(s); // Paper - decompile fix
if (persistentbase == null && this.e != null) {
@@ -0,0 +0,0 @@ public class WorldPersistentData {
persistentbase = function.apply(s); // Paper - decompile fix
persistentbase.a(a(this.e, this.b, s, 1631).getCompound("data"));
this.data.put(s, persistentbase);
- }
+ } else this.data.put(s, NO_RESULT); // Paper
} catch (Exception exception) {
WorldPersistentData.a.error("Error loading saved data: {}", s, exception);
}
}
- return persistentbase;
+ return persistentbase == NO_RESULT ? null : persistentbase; // Paper
}
+ private static final PersistentBase NO_RESULT = new ForcedChunk("chunks"); // Paper
public void a(String s, PersistentBase persistentbase) {
this.data.put(s, persistentbase);
@@ -0,0 +0,0 @@ public class WorldPersistentData {
}
public static NBTTagCompound a(IDataManager idatamanager, DimensionManager dimensionmanager, String s, int i) throws IOException {
+ if ("Mineshaft".equals(s) || "Mineshaft_index".equals(s)) return new NBTTagCompound(); // Paper
File file = idatamanager.getDataFile(dimensionmanager, s);
FileInputStream fileinputstream = new FileInputStream(file);
Throwable throwable = null;
diff --git a/src/main/java/net/minecraft/server/WorldServer.java b/src/main/java/net/minecraft/server/WorldServer.java
index 5c2421ac38..ee071ba2f6 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 {
this.P();
this.Q();
this.getWorldBorder().a(minecraftserver.au());
- MCUtil.scheduleAsyncTask(() -> this.getChunkProvider().chunkLoader.getPersistentStructureLegacy(dimensionmanager, worldMaps)); // Paper
+ MCUtil.scheduleAsyncTask(() -> this.getChunkProvider().chunkLoader.getPersistentStructureLegacy(worldProvider.getDimensionManager(), worldMaps)); // Paper
}
public WorldServer i_() {
--