392 lines
19 KiB
Diff
392 lines
19 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Thu, 20 May 2021 07:02:22 -0700
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Subject: [PATCH] Fix and optimise world force upgrading
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The WorldUpgrader class was incorrectly modified by
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CB. It will store an IChunkLoader instance for all
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dimension types in the world, but obviously with how
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CB shifts around worlds only one dimension type exists
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per world. But this would be OK if CB did this
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change correctly. All IChunkLoader instances
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will point to the same regionfiles. And all
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IChunkLoader instances are going to be read from.
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This problem hasn't really been reported because
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it relies on the persistent legacy data to be converted
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as well to cause corruption. Why? Because the legacy
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data is also shared, it will result in different
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outputs from conversion (as once conversion for legacy
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persistent data takes place, it is REMOVED - so the next
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convert will _not_ have the data). Which means different
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sizes on disk. Which means different regionfile sector
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allocations. Which means there are 3 different possible
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regionfile sector allocations in memory, and none of them
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are going to be correct.
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I've fixed this by writing a world upgrader suited to
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CB's changes to world folder format. It was brain dead
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easy to add threading, so I did.
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diff --git a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..ca4e9acb4b7beb739546954d0aa02461559a28c8
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java
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@@ -0,0 +1,209 @@
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+package io.papermc.paper.world;
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+
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+import com.mojang.datafixers.DataFixer;
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+import com.mojang.serialization.Codec;
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+import net.minecraft.SharedConstants;
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+import net.minecraft.nbt.CompoundTag;
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+import net.minecraft.resources.ResourceKey;
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+import net.minecraft.util.worldupdate.WorldUpgrader;
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+import net.minecraft.world.level.ChunkPos;
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+import net.minecraft.world.level.Level;
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+import net.minecraft.world.level.chunk.ChunkGenerator;
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+import net.minecraft.world.level.chunk.storage.ChunkStorage;
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+import net.minecraft.world.level.chunk.storage.RegionFileStorage;
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+import net.minecraft.world.level.dimension.DimensionType;
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+import net.minecraft.world.level.dimension.LevelStem;
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+import net.minecraft.world.level.levelgen.WorldGenSettings;
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+import net.minecraft.world.level.storage.DimensionDataStorage;
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+import net.minecraft.world.level.storage.LevelStorageSource;
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+import org.apache.logging.log4j.LogManager;
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+import org.apache.logging.log4j.Logger;
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+import java.io.File;
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+import java.io.IOException;
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+import java.text.DecimalFormat;
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+import java.util.Optional;
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+import java.util.concurrent.ExecutorService;
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+import java.util.concurrent.Executors;
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+import java.util.concurrent.ThreadFactory;
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+import java.util.concurrent.atomic.AtomicInteger;
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+import java.util.concurrent.atomic.AtomicLong;
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+import java.util.function.Supplier;
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+
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+public class ThreadedWorldUpgrader {
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+
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+ private static final Logger LOGGER = LogManager.getLogger();
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+
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+ private final ResourceKey<LevelStem> dimensionType;
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+ private final String worldName;
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+ private final File worldDir;
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+ private final ExecutorService threadPool;
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+ private final DataFixer dataFixer;
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+ private final Optional<ResourceKey<Codec<? extends ChunkGenerator>>> generatorKey;
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+ private final boolean removeCaches;
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+
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+ public ThreadedWorldUpgrader(final ResourceKey<LevelStem> dimensionType, final String worldName, final File worldDir, final int threads,
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+ final DataFixer dataFixer, final Optional<ResourceKey<Codec<? extends ChunkGenerator>>> generatorKey, final boolean removeCaches) {
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+ this.dimensionType = dimensionType;
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+ this.worldName = worldName;
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+ this.worldDir = worldDir;
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+ this.threadPool = Executors.newFixedThreadPool(Math.max(1, threads), new ThreadFactory() {
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+ private final AtomicInteger threadCounter = new AtomicInteger();
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+
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+ @Override
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+ public Thread newThread(final Runnable run) {
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+ final Thread ret = new Thread(run);
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+
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+ ret.setName("World upgrader thread for world " + ThreadedWorldUpgrader.this.worldName + " #" + this.threadCounter.getAndIncrement());
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+ ret.setUncaughtExceptionHandler((thread, throwable) -> {
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+ LOGGER.fatal("Error upgrading world", throwable);
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+ });
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+
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+ return ret;
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+ }
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+ });
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+ this.dataFixer = dataFixer;
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+ this.generatorKey = generatorKey;
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+ this.removeCaches = removeCaches;
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+ }
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+
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+ public void convert() {
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+ final File worldFolder = LevelStorageSource.getStorageFolder(this.worldDir.toPath(), this.dimensionType).toFile();
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+ final DimensionDataStorage worldPersistentData = new DimensionDataStorage(new File(worldFolder, "data"), this.dataFixer);
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+
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+ final File regionFolder = new File(worldFolder, "region");
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+
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+ LOGGER.info("Force upgrading " + this.worldName);
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+ LOGGER.info("Counting regionfiles for " + this.worldName);
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+ final File[] regionFiles = regionFolder.listFiles((final File dir, final String name) -> {
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+ return WorldUpgrader.REGEX.matcher(name).matches();
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+ });
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+ if (regionFiles == null) {
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+ LOGGER.info("Found no regionfiles to convert for world " + this.worldName);
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+ return;
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+ }
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+ LOGGER.info("Found " + regionFiles.length + " regionfiles to convert");
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+ LOGGER.info("Starting conversion now for world " + this.worldName);
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+
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+ final WorldInfo info = new WorldInfo(() -> worldPersistentData,
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+ new ChunkStorage(regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey);
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+
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+ long expectedChunks = (long)regionFiles.length * (32L * 32L);
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+
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+ for (final File regionFile : regionFiles) {
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+ final ChunkPos regionPos = RegionFileStorage.getRegionFileCoordinates(regionFile.toPath());
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+ if (regionPos == null) {
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+ expectedChunks -= (32L * 32L);
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+ continue;
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+ }
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+
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+ this.threadPool.execute(new ConvertTask(info, regionPos.x >> 5, regionPos.z >> 5));
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+ }
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+ this.threadPool.shutdown();
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+
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+ final DecimalFormat format = new DecimalFormat("#0.00");
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+
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+ final long start = System.nanoTime();
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+
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+ while (!this.threadPool.isTerminated()) {
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+ final long current = info.convertedChunks.get();
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+
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+ LOGGER.info("{}% completed ({} / {} chunks)...", format.format((double)current / (double)expectedChunks * 100.0), current, expectedChunks);
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+
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+ try {
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+ Thread.sleep(1000L);
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+ } catch (final InterruptedException ignore) {}
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+ }
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+
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+ final long end = System.nanoTime();
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+
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+ try {
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+ info.loader.close();
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+ } catch (final IOException ex) {
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+ LOGGER.fatal("Failed to close chunk loader", ex);
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+ }
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+ LOGGER.info("Completed conversion. Took {}s, {} out of {} chunks needed to be converted/modified ({}%)",
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+ (int)Math.ceil((end - start) * 1.0e-9), info.modifiedChunks.get(), expectedChunks, format.format((double)info.modifiedChunks.get() / (double)expectedChunks * 100.0));
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+ }
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+
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+ private static final class WorldInfo {
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+
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+ public final Supplier<DimensionDataStorage> persistentDataSupplier;
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+ public final ChunkStorage loader;
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+ public final boolean removeCaches;
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+ public final ResourceKey<LevelStem> worldKey;
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+ public final Optional<ResourceKey<Codec<? extends ChunkGenerator>>> generatorKey;
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+ public final AtomicLong convertedChunks = new AtomicLong();
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+ public final AtomicLong modifiedChunks = new AtomicLong();
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+
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+ private WorldInfo(final Supplier<DimensionDataStorage> persistentDataSupplier, final ChunkStorage loader, final boolean removeCaches,
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+ final ResourceKey<LevelStem> worldKey, Optional<ResourceKey<Codec<? extends ChunkGenerator>>> generatorKey) {
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+ this.persistentDataSupplier = persistentDataSupplier;
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+ this.loader = loader;
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+ this.removeCaches = removeCaches;
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+ this.worldKey = worldKey;
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+ this.generatorKey = generatorKey;
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+ }
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+ }
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+
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+ private static final class ConvertTask implements Runnable {
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+
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+ private final WorldInfo worldInfo;
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+ private final int regionX;
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+ private final int regionZ;
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+
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+ public ConvertTask(final WorldInfo worldInfo, final int regionX, final int regionZ) {
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+ this.worldInfo = worldInfo;
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+ this.regionX = regionX;
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+ this.regionZ = regionZ;
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+ }
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+
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+ @Override
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+ public void run() {
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+ final int regionCX = this.regionX << 5;
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+ final int regionCZ = this.regionZ << 5;
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+
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+ final Supplier<DimensionDataStorage> persistentDataSupplier = this.worldInfo.persistentDataSupplier;
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+ final ChunkStorage loader = this.worldInfo.loader;
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+ final boolean removeCaches = this.worldInfo.removeCaches;
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+ final ResourceKey<LevelStem> worldKey = this.worldInfo.worldKey;
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+
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+ for (int cz = regionCZ; cz < (regionCZ + 32); ++cz) {
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+ for (int cx = regionCX; cx < (regionCX + 32); ++cx) {
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+ final ChunkPos chunkPos = new ChunkPos(cx, cz);
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+ try {
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+ // no need to check the coordinate of the chunk, the regionfilecache does that for us
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+
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+ CompoundTag chunkNBT = loader.read(chunkPos);
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+
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+ if (chunkNBT == null) {
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+ continue;
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+ }
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+
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+ final int versionBefore = ChunkStorage.getVersion(chunkNBT);
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+
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+ chunkNBT = loader.upgradeChunkTag(worldKey, persistentDataSupplier, chunkNBT, this.worldInfo.generatorKey, chunkPos, null);
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+
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+ boolean modified = versionBefore < SharedConstants.getCurrentVersion().getWorldVersion();
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+
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+ if (removeCaches) {
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+ final CompoundTag level = chunkNBT.getCompound("Level");
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+ modified |= level.contains("Heightmaps");
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+ level.remove("Heightmaps");
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+ modified |= level.contains("isLightOn");
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+ level.remove("isLightOn");
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+ }
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+
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+ if (modified) {
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+ this.worldInfo.modifiedChunks.getAndIncrement();
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+ loader.write(chunkPos, chunkNBT);
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+ }
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+ } catch (final Exception ex) {
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+ LOGGER.error("Error upgrading chunk {}", chunkPos, ex);
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+ } finally {
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+ this.worldInfo.convertedChunks.getAndIncrement();
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+ }
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+ }
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+ }
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+ }
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
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index 69dc1271be0a3f3f2fb4ce15981ed25d24dce785..1e0d261439255091a6f61485c0747231fbd5b1db 100644
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--- a/src/main/java/net/minecraft/server/Main.java
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+++ b/src/main/java/net/minecraft/server/Main.java
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@@ -15,6 +15,7 @@ import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.util.Optional;
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import java.util.function.BooleanSupplier;
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+import io.papermc.paper.world.ThreadedWorldUpgrader;
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import joptsimple.NonOptionArgumentSpec;
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import joptsimple.OptionParser;
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import joptsimple.OptionSet;
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@@ -316,6 +317,15 @@ public class Main {
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}
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// Paper end
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+ // Paper start - fix and optimise world upgrading
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+ public static void convertWorldButItWorks(net.minecraft.resources.ResourceKey<net.minecraft.world.level.dimension.LevelStem> dimensionType, net.minecraft.world.level.storage.LevelStorageSource.LevelStorageAccess worldSession,
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+ DataFixer dataFixer, Optional<net.minecraft.resources.ResourceKey<com.mojang.serialization.Codec<? extends net.minecraft.world.level.chunk.ChunkGenerator>>> generatorKey, boolean removeCaches) {
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+ int threads = Runtime.getRuntime().availableProcessors() * 3 / 8;
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+ final ThreadedWorldUpgrader worldUpgrader = new ThreadedWorldUpgrader(dimensionType, worldSession.getLevelId(), worldSession.levelPath.toFile(), threads, dataFixer, generatorKey, removeCaches);
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+ worldUpgrader.convert();
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+ }
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+ // Paper end - fix and optimise world upgrading
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+
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public static void forceUpgrade(LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, boolean eraseCache, BooleanSupplier continueCheck, WorldGenSettings generatorOptions) {
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Main.LOGGER.info("Forcing world upgrade! {}", session.getLevelId()); // CraftBukkit
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WorldUpgrader worldupgrader = new WorldUpgrader(session, dataFixer, generatorOptions, eraseCache);
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 2ec8216d19de795bbe0827f6c9b3f9cdc2ce6760..b8ffd95bbad81521b9f91e83f63188553c09d4bd 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -555,11 +555,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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worlddata = new PrimaryLevelData(worldsettings, generatorsettings, Lifecycle.stable());
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}
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worlddata.checkName(name); // CraftBukkit - Migration did not rewrite the level.dat; This forces 1.8 to take the last loaded world as respawn (in this case the end)
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- if (this.options.has("forceUpgrade")) {
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- net.minecraft.server.Main.forceUpgrade(worldSession, DataFixers.getDataFixer(), this.options.has("eraseCache"), () -> {
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- return true;
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- }, worlddata.worldGenSettings());
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- }
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+ // Paper - move down
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ServerLevelData iworlddataserver = worlddata;
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WorldGenSettings generatorsettings = worlddata.worldGenSettings();
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@@ -591,6 +587,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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}
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}
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+ // Paper start - fix and optimise world upgrading
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+ if (options.has("forceUpgrade")) {
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+ net.minecraft.server.Main.convertWorldButItWorks(
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+ dimensionKey, worldSession, DataFixers.getDataFixer(), chunkgenerator.getTypeNameForDataFixer(), options.has("eraseCache")
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+ );
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+ }
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+ // Paper end - fix and optimise world upgrading
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+
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ResourceKey<Level> worldKey = ResourceKey.create(Registry.DIMENSION_REGISTRY, dimensionKey.location());
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if (dimensionKey == LevelStem.OVERWORLD) {
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 7d7d6ac3ae38eda0aed9f52059fccd3970718890..c3ae2b4b5b4eb14d24f2c15a7e8ace8ebee84c1a 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -172,6 +172,15 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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public final Map<Explosion.CacheKey, Float> explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions
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public java.util.ArrayDeque<net.minecraft.world.level.block.RedstoneTorchBlock.Toggle> redstoneUpdateInfos; // Paper - Move from Map in BlockRedstoneTorch to here
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+ // Paper start - fix and optimise world upgrading
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+ // copied from below
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+ public static ResourceKey<DimensionType> getDimensionKey(DimensionType manager) {
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+ return ((org.bukkit.craftbukkit.CraftServer)org.bukkit.Bukkit.getServer()).getHandle().getServer().registryHolder.ownedRegistryOrThrow(net.minecraft.core.Registry.DIMENSION_TYPE_REGISTRY).getResourceKey(manager).orElseThrow(() -> {
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+ return new IllegalStateException("Unregistered dimension type: " + manager);
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+ });
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+ }
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+ // Paper end - fix and optimise world upgrading
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+
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public CraftWorld getWorld() {
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return this.world;
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}
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diff --git a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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index 4bc33c31d497aa7d69226ab870fd78902bedfd5b..089e8414c7bdc102ba0d914af576df1a05af7519 100644
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--- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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+++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java
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@@ -32,6 +32,28 @@ public class RegionFileStorage implements AutoCloseable {
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}
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// Paper start
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+ public static @Nullable ChunkPos getRegionFileCoordinates(Path file) {
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+ String fileName = file.getFileName().toString();
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+ if (!fileName.startsWith("r.") || !fileName.endsWith(".mca")) {
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+ return null;
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+ }
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+
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+ String[] split = fileName.split("\\.");
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+
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+ if (split.length != 4) {
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+ return null;
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+ }
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+
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+ try {
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+ int x = Integer.parseInt(split[1]);
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+ int z = Integer.parseInt(split[2]);
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+
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+ return new ChunkPos(x << 5, z << 5);
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+ } catch (NumberFormatException ex) {
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+ return null;
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+ }
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+ }
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+
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public synchronized RegionFile getRegionFileIfLoaded(ChunkPos chunkcoordintpair) {
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return this.regionCache.getAndMoveToFirst(ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ()));
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}
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 3cb0b4797015eff95632355e4b78b955a8280a02..d4be39b4cb6a6c7f8b27ddd6dfb60541e9ac8834 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1199,12 +1199,7 @@ public final class CraftServer implements Server {
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}
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worlddata.checkName(name);
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worlddata.setModdedInfo(this.console.getServerModName(), this.console.getModdedStatus().shouldReportAsModified());
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-
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- if (console.options.has("forceUpgrade")) {
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- net.minecraft.server.Main.forceUpgrade(worldSession, DataFixers.getDataFixer(), console.options.has("eraseCache"), () -> {
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- return true;
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- }, worlddata.worldGenSettings());
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- }
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+ // Paper - move down
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long j = BiomeManager.obfuscateSeed(creator.seed());
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List<CustomSpawner> list = ImmutableList.of(new PhantomSpawner(), new PatrolSpawner(), new CatSpawner(), new VillageSiege(), new WanderingTraderSpawner(worlddata));
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@@ -1233,6 +1228,14 @@ public final class CraftServer implements Server {
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}
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}
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+ // Paper start - fix and optimise world upgrading
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+ if (console.options.has("forceUpgrade")) {
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+ net.minecraft.server.Main.convertWorldButItWorks(
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+ actualDimension, worldSession, DataFixers.getDataFixer(), chunkgenerator.getTypeNameForDataFixer(), console.options.has("eraseCache")
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+ );
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+ }
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+ // Paper end - fix and optimise world upgrading
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+
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ResourceKey<net.minecraft.world.level.Level> worldKey;
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String levelName = this.getServer().getProperties().levelName;
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if (name.equals(levelName + "_nether")) {
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