From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 From: Spottedleaf Date: Thu, 20 May 2021 07:02:22 -0700 Subject: [PATCH] Fix and optimise world force upgrading The WorldUpgrader class was incorrectly modified by CB. It will store an IChunkLoader instance for all dimension types in the world, but obviously with how CB shifts around worlds only one dimension type exists per world. But this would be OK if CB did this change correctly. All IChunkLoader instances will point to the same regionfiles. And all IChunkLoader instances are going to be read from. This problem hasn't really been reported because it relies on the persistent legacy data to be converted as well to cause corruption. Why? Because the legacy data is also shared, it will result in different outputs from conversion (as once conversion for legacy persistent data takes place, it is REMOVED - so the next convert will _not_ have the data). Which means different sizes on disk. Which means different regionfile sector allocations. Which means there are 3 different possible regionfile sector allocations in memory, and none of them are going to be correct. I've fixed this by writing a world upgrader suited to CB's changes to world folder format. It was brain dead easy to add threading, so I did. diff --git a/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java new file mode 100644 index 0000000000000000000000000000000000000000..95cac7edae8ac64811fc6a2f6b97dd4a0fceb0b0 --- /dev/null +++ b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java @@ -0,0 +1,209 @@ +package io.papermc.paper.world; + +import com.mojang.datafixers.DataFixer; +import com.mojang.serialization.Codec; +import net.minecraft.SharedConstants; +import net.minecraft.nbt.CompoundTag; +import net.minecraft.resources.ResourceKey; +import net.minecraft.util.worldupdate.WorldUpgrader; +import net.minecraft.world.level.ChunkPos; +import net.minecraft.world.level.Level; +import net.minecraft.world.level.chunk.ChunkGenerator; +import net.minecraft.world.level.chunk.storage.ChunkStorage; +import net.minecraft.world.level.chunk.storage.RegionFileStorage; +import net.minecraft.world.level.dimension.DimensionType; +import net.minecraft.world.level.dimension.LevelStem; +import net.minecraft.world.level.levelgen.WorldGenSettings; +import net.minecraft.world.level.storage.DimensionDataStorage; +import net.minecraft.world.level.storage.LevelStorageSource; +import org.apache.logging.log4j.LogManager; +import org.apache.logging.log4j.Logger; +import java.io.File; +import java.io.IOException; +import java.text.DecimalFormat; +import java.util.Optional; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.ThreadFactory; +import java.util.concurrent.atomic.AtomicInteger; +import java.util.concurrent.atomic.AtomicLong; +import java.util.function.Supplier; + +public class ThreadedWorldUpgrader { + + private static final Logger LOGGER = LogManager.getLogger(); + + private final ResourceKey dimensionType; + private final String worldName; + private final File worldDir; + private final ExecutorService threadPool; + private final DataFixer dataFixer; + private final Optional>> generatorKey; + private final boolean removeCaches; + + public ThreadedWorldUpgrader(final ResourceKey dimensionType, final String worldName, final File worldDir, final int threads, + final DataFixer dataFixer, final Optional>> generatorKey, final boolean removeCaches) { + this.dimensionType = dimensionType; + this.worldName = worldName; + this.worldDir = worldDir; + this.threadPool = Executors.newFixedThreadPool(Math.max(1, threads), new ThreadFactory() { + private final AtomicInteger threadCounter = new AtomicInteger(); + + @Override + public Thread newThread(final Runnable run) { + final Thread ret = new Thread(run); + + ret.setName("World upgrader thread for world " + ThreadedWorldUpgrader.this.worldName + " #" + this.threadCounter.getAndIncrement()); + ret.setUncaughtExceptionHandler((thread, throwable) -> { + LOGGER.fatal("Error upgrading world", throwable); + }); + + return ret; + } + }); + this.dataFixer = dataFixer; + this.generatorKey = generatorKey; + this.removeCaches = removeCaches; + } + + public void convert() { + final File worldFolder = LevelStorageSource.getStorageFolder(this.worldDir.toPath(), this.dimensionType).toFile(); + final DimensionDataStorage worldPersistentData = new DimensionDataStorage(new File(worldFolder, "data"), this.dataFixer); + + final File regionFolder = new File(worldFolder, "region"); + + LOGGER.info("Force upgrading " + this.worldName); + LOGGER.info("Counting regionfiles for " + this.worldName); + final File[] regionFiles = regionFolder.listFiles((final File dir, final String name) -> { + return WorldUpgrader.REGEX.matcher(name).matches(); + }); + if (regionFiles == null) { + LOGGER.info("Found no regionfiles to convert for world " + this.worldName); + return; + } + LOGGER.info("Found " + regionFiles.length + " regionfiles to convert"); + LOGGER.info("Starting conversion now for world " + this.worldName); + + final WorldInfo info = new WorldInfo(() -> worldPersistentData, + new ChunkStorage(regionFolder.toPath(), this.dataFixer, false), this.removeCaches, this.dimensionType, this.generatorKey); + + long expectedChunks = (long)regionFiles.length * (32L * 32L); + + for (final File regionFile : regionFiles) { + final ChunkPos regionPos = RegionFileStorage.getRegionFileCoordinates(regionFile.toPath()); + if (regionPos == null) { + expectedChunks -= (32L * 32L); + continue; + } + + this.threadPool.execute(new ConvertTask(info, regionPos.x >> 5, regionPos.z >> 5)); + } + this.threadPool.shutdown(); + + final DecimalFormat format = new DecimalFormat("#0.00"); + + final long start = System.nanoTime(); + + while (!this.threadPool.isTerminated()) { + final long current = info.convertedChunks.get(); + + LOGGER.info("{}% completed ({} / {} chunks)...", format.format((double)current / (double)expectedChunks * 100.0), current, expectedChunks); + + try { + Thread.sleep(1000L); + } catch (final InterruptedException ignore) {} + } + + final long end = System.nanoTime(); + + try { + info.loader.close(); + } catch (final IOException ex) { + LOGGER.fatal("Failed to close chunk loader", ex); + } + LOGGER.info("Completed conversion. Took {}s, {} out of {} chunks needed to be converted/modified ({}%)", + (int)Math.ceil((end - start) * 1.0e-9), info.modifiedChunks.get(), expectedChunks, format.format((double)info.modifiedChunks.get() / (double)expectedChunks * 100.0)); + } + + private static final class WorldInfo { + + public final Supplier persistentDataSupplier; + public final ChunkStorage loader; + public final boolean removeCaches; + public final ResourceKey worldKey; + public final Optional>> generatorKey; + public final AtomicLong convertedChunks = new AtomicLong(); + public final AtomicLong modifiedChunks = new AtomicLong(); + + private WorldInfo(final Supplier persistentDataSupplier, final ChunkStorage loader, final boolean removeCaches, + final ResourceKey worldKey, Optional>> generatorKey) { + this.persistentDataSupplier = persistentDataSupplier; + this.loader = loader; + this.removeCaches = removeCaches; + this.worldKey = worldKey; + this.generatorKey = generatorKey; + } + } + + private static final class ConvertTask implements Runnable { + + private final WorldInfo worldInfo; + private final int regionX; + private final int regionZ; + + public ConvertTask(final WorldInfo worldInfo, final int regionX, final int regionZ) { + this.worldInfo = worldInfo; + this.regionX = regionX; + this.regionZ = regionZ; + } + + @Override + public void run() { + final int regionCX = this.regionX << 5; + final int regionCZ = this.regionZ << 5; + + final Supplier persistentDataSupplier = this.worldInfo.persistentDataSupplier; + final ChunkStorage loader = this.worldInfo.loader; + final boolean removeCaches = this.worldInfo.removeCaches; + final ResourceKey worldKey = this.worldInfo.worldKey; + + for (int cz = regionCZ; cz < (regionCZ + 32); ++cz) { + for (int cx = regionCX; cx < (regionCX + 32); ++cx) { + final ChunkPos chunkPos = new ChunkPos(cx, cz); + try { + // no need to check the coordinate of the chunk, the regionfilecache does that for us + + CompoundTag chunkNBT = (loader.read(chunkPos).join()).orElse(null); + + if (chunkNBT == null) { + continue; + } + + final int versionBefore = ChunkStorage.getVersion(chunkNBT); + + chunkNBT = loader.upgradeChunkTag(worldKey, persistentDataSupplier, chunkNBT, this.worldInfo.generatorKey, chunkPos, null); + + boolean modified = versionBefore < SharedConstants.getCurrentVersion().getWorldVersion(); + + if (removeCaches) { + final CompoundTag level = chunkNBT.getCompound("Level"); + modified |= level.contains("Heightmaps"); + level.remove("Heightmaps"); + modified |= level.contains("isLightOn"); + level.remove("isLightOn"); + } + + if (modified) { + this.worldInfo.modifiedChunks.getAndIncrement(); + loader.write(chunkPos, chunkNBT); + } + } catch (final Exception ex) { + LOGGER.error("Error upgrading chunk {}", chunkPos, ex); + } finally { + this.worldInfo.convertedChunks.getAndIncrement(); + } + } + } + } + } +} diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java index 9ebfa8c8a3fc1299e513efd467c562459f2684e7..1e9ff7ecd03a4202376884104570ab56f4226a97 100644 --- a/src/main/java/net/minecraft/server/Main.java +++ b/src/main/java/net/minecraft/server/Main.java @@ -16,6 +16,7 @@ import java.util.Objects; import java.util.Optional; import java.util.UUID; import java.util.function.BooleanSupplier; +import io.papermc.paper.world.ThreadedWorldUpgrader; import joptsimple.NonOptionArgumentSpec; import joptsimple.OptionParser; import joptsimple.OptionSet; @@ -312,6 +313,15 @@ public class Main { } // Paper end + // Paper start - fix and optimise world upgrading + public static void convertWorldButItWorks(net.minecraft.resources.ResourceKey dimensionType, net.minecraft.world.level.storage.LevelStorageSource.LevelStorageAccess worldSession, + DataFixer dataFixer, Optional>> generatorKey, boolean removeCaches) { + int threads = Runtime.getRuntime().availableProcessors() * 3 / 8; + final ThreadedWorldUpgrader worldUpgrader = new ThreadedWorldUpgrader(dimensionType, worldSession.getLevelId(), worldSession.levelDirectory.path().toFile(), threads, dataFixer, generatorKey, removeCaches); + worldUpgrader.convert(); + } + // Paper end - fix and optimise world upgrading + public static void forceUpgrade(LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, boolean eraseCache, BooleanSupplier continueCheck, WorldGenSettings generatorOptions) { Main.LOGGER.info("Forcing world upgrade! {}", session.getLevelId()); // CraftBukkit WorldUpgrader worldupgrader = new WorldUpgrader(session, dataFixer, generatorOptions, eraseCache); diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 3b950c0a6a660d5d9b957cfc08d85fc2bdb706e4..6693a1861a775b755aa06844a37753ba9ec3bbc5 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -541,11 +541,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop { - return true; - }, worlddata.worldGenSettings()); - } + // Paper - move down PrimaryLevelData iworlddataserver = worlddata; WorldGenSettings generatorsettings = worlddata.worldGenSettings(); @@ -560,6 +556,13 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop worldKey = ResourceKey.create(Registry.DIMENSION_REGISTRY, dimensionKey.location()); if (dimensionKey == LevelStem.OVERWORLD) { diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java index c2315b4eb3d62c01f117e4f00b2280114f0945f9..c22e6e9d043f9afcb8c2fe24e9edd180304930dc 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -178,6 +178,15 @@ public abstract class Level implements LevelAccessor, AutoCloseable { public final Map explosionDensityCache = new HashMap<>(); // Paper - Optimize explosions public java.util.ArrayDeque redstoneUpdateInfos; // Paper - Move from Map in BlockRedstoneTorch to here + // Paper start - fix and optimise world upgrading + // copied from below + public static ResourceKey getDimensionKey(DimensionType manager) { + return ((org.bukkit.craftbukkit.CraftServer)org.bukkit.Bukkit.getServer()).getHandle().getServer().registryHolder.ownedRegistryOrThrow(net.minecraft.core.Registry.DIMENSION_TYPE_REGISTRY).getResourceKey(manager).orElseThrow(() -> { + return new IllegalStateException("Unregistered dimension type: " + manager); + }); + } + // Paper end - fix and optimise world upgrading + public CraftWorld getWorld() { return this.world; } 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 index 4bc33c31d497aa7d69226ab870fd78902bedfd5b..089e8414c7bdc102ba0d914af576df1a05af7519 100644 --- a/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java +++ b/src/main/java/net/minecraft/world/level/chunk/storage/RegionFileStorage.java @@ -32,6 +32,28 @@ public class RegionFileStorage implements AutoCloseable { } // Paper start + public static @Nullable ChunkPos getRegionFileCoordinates(Path file) { + String fileName = file.getFileName().toString(); + if (!fileName.startsWith("r.") || !fileName.endsWith(".mca")) { + return null; + } + + String[] split = fileName.split("\\."); + + if (split.length != 4) { + return null; + } + + try { + int x = Integer.parseInt(split[1]); + int z = Integer.parseInt(split[2]); + + return new ChunkPos(x << 5, z << 5); + } catch (NumberFormatException ex) { + return null; + } + } + public synchronized RegionFile getRegionFileIfLoaded(ChunkPos chunkcoordintpair) { return this.regionCache.getAndMoveToFirst(ChunkPos.asLong(chunkcoordintpair.getRegionX(), chunkcoordintpair.getRegionZ())); } diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java index eb2d4225eea2940bc9091daf7d7aa96fc8cab675..59e1303353e029ee754bde2e43f2bca622154381 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java @@ -1194,12 +1194,7 @@ public final class CraftServer implements Server { } worlddata.checkName(name); worlddata.setModdedInfo(this.console.getServerModName(), this.console.getModdedStatus().shouldReportAsModified()); - - if (console.options.has("forceUpgrade")) { - net.minecraft.server.Main.forceUpgrade(worldSession, DataFixers.getDataFixer(), console.options.has("eraseCache"), () -> { - return true; - }, worlddata.worldGenSettings()); - } + // Paper - move down long j = BiomeManager.obfuscateSeed(creator.seed()); List list = ImmutableList.of(new PhantomSpawner(), new PatrolSpawner(), new CatSpawner(), new VillageSiege(), new WanderingTraderSpawner(worlddata)); @@ -1211,6 +1206,13 @@ public final class CraftServer implements Server { biomeProvider = generator.getDefaultBiomeProvider(worldInfo); } + // Paper start - fix and optimise world upgrading + if (console.options.has("forceUpgrade")) { + net.minecraft.server.Main.convertWorldButItWorks( + actualDimension, worldSession, DataFixers.getDataFixer(), worlddimension.generator().getTypeNameForDataFixer(), console.options.has("eraseCache") + ); + } + // Paper end - fix and optimise world upgrading ResourceKey worldKey; String levelName = this.getServer().getProperties().levelName; if (name.equals(levelName + "_nether")) {