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..452934a7a037c8b1c5f9906c7af75ed8c449ebc0 --- /dev/null +++ b/src/main/java/io/papermc/paper/world/ThreadedWorldUpgrader.java @@ -0,0 +1,200 @@ +package io.papermc.paper.world; + +import com.mojang.datafixers.DataFixer; +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.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.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.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 ResourceKey worldKey; + private final String worldName; + private final ExecutorService threadPool; + private final DataFixer dataFixer; + private final boolean removeCaches; + + public ThreadedWorldUpgrader(final ResourceKey dimensionType, final ResourceKey worldKey, final String worldName, final int threads, + final DataFixer dataFixer, final boolean removeCaches) { + this.dimensionType = dimensionType; + this.worldKey = worldKey; + this.worldName = worldName; + 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.removeCaches = removeCaches; + } + + public void convert() { + final File worldFolder = LevelStorageSource.getFolder(new File(this.worldName), this.dimensionType); + 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, this.dataFixer, false), this.removeCaches, this.worldKey); + + long expectedChunks = (long)regionFiles.length * (32L * 32L); + + for (final File regionFile : regionFiles) { + final ChunkPos regionPos = RegionFileStorage.getRegionFileCoordinates(regionFile); + 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 AtomicLong convertedChunks = new AtomicLong(); + public final AtomicLong modifiedChunks = new AtomicLong(); + + private WorldInfo(final Supplier persistentDataSupplier, final ChunkStorage loader, final boolean removeCaches, + final ResourceKey worldKey) { + this.persistentDataSupplier = persistentDataSupplier; + this.loader = loader; + this.removeCaches = removeCaches; + this.worldKey = worldKey; + } + } + + 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); + + if (chunkNBT == null) { + continue; + } + + final int versionBefore = ChunkStorage.getVersion(chunkNBT); + + chunkNBT = loader.getChunkData(worldKey, persistentDataSupplier, chunkNBT, 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 cf0a74b8a1c31d4bc493eb09a69ee2bd94cb6485..6fa1a7da70896d0ff34d38698769195a98c06195 100644 --- a/src/main/java/net/minecraft/server/Main.java +++ b/src/main/java/net/minecraft/server/Main.java @@ -15,6 +15,7 @@ import java.nio.file.Paths; import java.util.Optional; import java.util.concurrent.CompletableFuture; import java.util.function.BooleanSupplier; +import io.papermc.paper.world.ThreadedWorldUpgrader; import joptsimple.NonOptionArgumentSpec; import joptsimple.OptionParser; import joptsimple.OptionSet; @@ -283,6 +284,15 @@ public class Main { } // Paper end + // Paper start - fix and optimise world upgrading + public static void convertWorldButItWorks(ResourceKey dimensionType, ResourceKey worldKey, String worldName, + DataFixer dataFixer, boolean removeCaches) { + int threads = Runtime.getRuntime().availableProcessors() * 3 / 8; + final ThreadedWorldUpgrader worldUpgrader = new ThreadedWorldUpgrader(dimensionType, worldKey, worldName, threads, dataFixer, removeCaches); + worldUpgrader.convert(); + } + // Paper end - fix and optimise world upgrading + public static void forceUpgrade(LevelStorageSource.LevelStorageAccess session, DataFixer dataFixer, boolean eraseCache, BooleanSupplier booleansupplier, ImmutableSet> worlds) { // CraftBukkit Main.LOGGER.info("Forcing world upgrade! {}", session.getLevelId()); // CraftBukkit WorldUpgrader worldupgrader = new WorldUpgrader(session, dataFixer, worlds, eraseCache); diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 73ac55de9059a1d0f1da5bec0688dcd4bf5c8973..db2d6e7b2dc82c60d524dd2a018d28c2068552fa 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -563,13 +563,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop { - return true; - }, worlddata.worldGenSettings().dimensions().entrySet().stream().map((entry1) -> { - return ResourceKey.create(Registry.DIMENSION_TYPE_REGISTRY, ((ResourceKey) entry1.getKey()).location()); - }).collect(ImmutableSet.toImmutableSet())); - } + // Paper - move down ServerLevelData iworlddataserver = worlddata; WorldGenSettings generatorsettings = worlddata.worldGenSettings(); @@ -589,6 +583,14 @@ 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 0c1774ecf236d7616738a170930abe58c5d12ece..667aecc27e0c886f15a0418020d046e0a9791a0e 100644 --- a/src/main/java/net/minecraft/world/level/Level.java +++ b/src/main/java/net/minecraft/world/level/Level.java @@ -185,6 +185,14 @@ public abstract class Level implements LevelAccessor, AutoCloseable { return this.typeKey; } + // 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 protected Level(WritableLevelData worlddatamutable, ResourceKey resourcekey, final DimensionType dimensionmanager, Supplier supplier, boolean flag, boolean flag1, long i, org.bukkit.generator.ChunkGenerator gen, org.bukkit.World.Environment env) { this.spigotConfig = new org.spigotmc.SpigotWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName()); // Spigot this.paperConfig = new com.destroystokyo.paper.PaperWorldConfig(((net.minecraft.world.level.storage.PrimaryLevelData) worlddatamutable).getLevelName(), this.spigotConfig); // Paper 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 1bee455235ece8aa299a2baeede027d251e6ff57..60ae9395591c81aebaa4be1541380a8fe921ce68 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 @@ -29,6 +29,28 @@ public class RegionFileStorage implements AutoCloseable { // Paper - no final } // Paper start + public static ChunkPos getRegionFileCoordinates(File file) { + String fileName = file.getName(); + 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 59c352f9666ff9b828450a62f590ab637b4329b5..e5135b5cffc39fa63cb9a78274c026a0b5fddaf8 100644 --- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java +++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java @@ -1143,14 +1143,7 @@ public final class CraftServer implements Server { } worlddata.checkName(name); worlddata.setModdedInfo(this.console.getServerModName(), this.console.getModdedStatus().isPresent()); - - if (console.options.has("forceUpgrade")) { - net.minecraft.server.Main.forceUpgrade(worldSession, DataFixers.getDataFixer(), console.options.has("eraseCache"), () -> { - return true; - }, worlddata.worldGenSettings().dimensions().entrySet().stream().map((entry) -> { - return ResourceKey.create(Registry.DIMENSION_TYPE_REGISTRY, ((ResourceKey) entry.getKey()).location()); - }).collect(ImmutableSet.toImmutableSet())); - } + // Paper - move down long j = BiomeManager.obfuscateSeed(creator.seed()); List list = ImmutableList.of(new PhantomSpawner(), new PatrolSpawner(), new CatSpawner(), new VillageSiege(), new WanderingTraderSpawner(worlddata)); @@ -1167,6 +1160,14 @@ public final class CraftServer implements Server { chunkgenerator = worlddimension.generator(); } + // Paper start - fix and optimise world upgrading + if (console.options.has("forceUpgrade")) { + net.minecraft.server.Main.convertWorldButItWorks( + actualDimension, net.minecraft.world.level.Level.getDimensionKey(dimensionmanager), worldSession.getLevelId(), DataFixers.getDataFixer(), console.options.has("eraseCache") + ); + } + // Paper end - fix and optimise world upgrading + ResourceKey worldKey; String levelName = this.getServer().getProperties().levelName; if (name.equals(levelName + "_nether")) {