mirror of https://github.com/PaperMC/Paper.git
67 lines
2.7 KiB
Diff
67 lines
2.7 KiB
Diff
From a576811cfbd84b86003b6d81569f8e4399447a10 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Fri, 29 Mar 2019 01:25:11 -0400
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Subject: [PATCH] Optimize Persistent Data Loading
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removes Mineshaft loading legacy as we had pre 1.13.2 to avoid managing
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that very large data file from legacy systems.
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Previous to 1.13.2 these data files were never loaded to begin with, so they
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effectively do not contain valid/relevant data.
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These files take a long time to convert on large worlds and crashes the server.
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Additionally, cache the result of a file being missing so we don't keep spam checking it.
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diff --git a/src/main/java/net/minecraft/server/WorldPersistentData.java b/src/main/java/net/minecraft/server/WorldPersistentData.java
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index 00e9a17355..153809432c 100644
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--- a/src/main/java/net/minecraft/server/WorldPersistentData.java
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+++ b/src/main/java/net/minecraft/server/WorldPersistentData.java
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@@ -26,6 +26,7 @@ public class WorldPersistentData {
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this.c = datafixer;
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this.d = file;
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}
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+ private static final PersistentBase NO_RESULT = new ForcedChunk(); // Paper
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private File a(String s) {
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return new File(this.d, s + ".dat");
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@@ -46,14 +47,17 @@ public class WorldPersistentData {
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@Nullable
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public <T extends PersistentBase> T b(Supplier<T> supplier, String s) {
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+ if ("Mineshaft_index".equals(s) || "Mineshaft".equals(s)) return null; // Paper - mineshaft is useless data
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T persistentbase = (T) this.data.get(s); // Paper - decompile fix
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if (persistentbase == null && !this.data.containsKey(s)) {
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persistentbase = this.c(supplier, s);
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this.data.put(s, persistentbase);
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+ } else { // Paper
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+ this.data.put(s, NO_RESULT); // Paper
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}
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- return persistentbase;
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+ return persistentbase == NO_RESULT ? null : persistentbase; // Paper
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}
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@Nullable
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@@ -66,7 +70,7 @@ public class WorldPersistentData {
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NBTTagCompound nbttagcompound = this.a(s, SharedConstants.a().getWorldVersion());
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t0.a(nbttagcompound.getCompound("data"));
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- return t0;
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+ return t0 == NO_RESULT ? null : t0; // Paper
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}
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} catch (Exception exception) {
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WorldPersistentData.LOGGER.error("Error loading saved data: {}", s, exception);
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@@ -80,6 +84,7 @@ public class WorldPersistentData {
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}
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public NBTTagCompound a(String s, int i) throws IOException {
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+ if ("Mineshaft".equals(s) || "Mineshaft_index".equals(s)) return new NBTTagCompound(); // Paper
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File file = this.a(s);
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PushbackInputStream pushbackinputstream = new PushbackInputStream(new FileInputStream(file), 2);
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Throwable throwable = null;
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--
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2.22.0
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