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Paper/patches/server/0451-incremental-chunk-and-player-saving.patch

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 9 Jun 2019 03:53:22 +0100
Subject: [PATCH] incremental chunk and player saving
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index c639557108ad9c59ccdd0b543b5507fbab1e0fa4..5e531f9fc67bd3092b39f1d3b46b9490319dd79a 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -459,4 +459,14 @@ public class PaperConfig {
set("settings.unsupported-settings.allow-tnt-duplication", null);
}
+ public static int playerAutoSaveRate = -1;
+ public static int maxPlayerAutoSavePerTick = 10;
+ private static void playerAutoSaveRate() {
+ playerAutoSaveRate = getInt("settings.player-auto-save-rate", -1);
+ maxPlayerAutoSavePerTick = getInt("settings.max-player-auto-save-per-tick", -1);
+ if (maxPlayerAutoSavePerTick == -1) { // -1 Automatic / "Recommended"
+ // 10 should be safe for everyone unless you mass spamming player auto save
+ maxPlayerAutoSavePerTick = (playerAutoSaveRate == -1 || playerAutoSaveRate > 100) ? 10 : 20;
+ }
+ }
}
diff --git a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
index 634affda96921a5453f89ddcc72fc482b162a085..0167b3f0c3f52f540edc381e532d777b90279201 100644
--- a/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperWorldConfig.java
@@ -69,6 +69,21 @@ public class PaperWorldConfig {
log( "Keep Spawn Loaded Range: " + (keepLoadedRange/16));
}
+ public int autoSavePeriod = -1;
+ private void autoSavePeriod() {
+ autoSavePeriod = getInt("auto-save-interval", -1);
+ if (autoSavePeriod > 0) {
+ log("Auto Save Interval: " +autoSavePeriod + " (" + (autoSavePeriod / 20) + "s)");
+ } else if (autoSavePeriod < 0) {
+ autoSavePeriod = net.minecraft.server.MinecraftServer.getServer().autosavePeriod;
+ }
+ }
+
+ public int maxAutoSaveChunksPerTick = 24;
+ private void maxAutoSaveChunksPerTick() {
+ maxAutoSaveChunksPerTick = getInt("max-auto-save-chunks-per-tick", 24);
+ }
+
private boolean getBoolean(String path, boolean def) {
config.addDefault("world-settings.default." + path, def);
return config.getBoolean("world-settings." + worldName + "." + path, config.getBoolean("world-settings.default." + path));
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 03ef045c166c92efaeeaf655178b9729549e2296..851d63ba918f1fb2ffb975b0b46c8797e2b3b903 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -898,7 +898,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
try {
this.isSaving = true;
- this.getPlayerList().saveAll();
+ this.getPlayerList().saveAll(); // Diff on change
flag3 = this.saveAllChunks(suppressLogs, flush, force);
} finally {
this.isSaving = false;
@@ -1440,13 +1440,28 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
}
- if (this.autosavePeriod > 0 && this.tickCount % this.autosavePeriod == 0) { // CraftBukkit
- MinecraftServer.LOGGER.debug("Autosave started");
- this.profiler.push("save");
- this.saveEverything(true, false, false);
- this.profiler.pop();
- MinecraftServer.LOGGER.debug("Autosave finished");
+ // Paper start - incremental chunk and player saving
+ int playerSaveInterval = com.destroystokyo.paper.PaperConfig.playerAutoSaveRate;
+ if (playerSaveInterval < 0) {
+ playerSaveInterval = autosavePeriod;
}
+ this.profiler.push("save");
+ final boolean fullSave = autosavePeriod > 0 && this.tickCount % autosavePeriod == 0;
+ try {
+ this.isSaving = true;
+ if (playerSaveInterval > 0) {
+ this.playerList.saveAll(playerSaveInterval);
+ }
+ for (ServerLevel level : this.getAllLevels()) {
+ if (level.paperConfig.autoSavePeriod > 0) {
+ level.saveIncrementally(fullSave);
+ }
+ }
+ } finally {
+ this.isSaving = false;
+ }
+ this.profiler.pop();
+ // Paper end
io.papermc.paper.util.CachedLists.reset(); // Paper
// Paper start - move executeAll() into full server tick timing
try (co.aikar.timings.Timing ignored = MinecraftTimings.processTasksTimer.startTiming()) {
diff --git a/src/main/java/net/minecraft/server/level/ChunkHolder.java b/src/main/java/net/minecraft/server/level/ChunkHolder.java
index 1324d48ff7540c4fe9148b3c6d4952ebbfb3fc22..71af341580f08c71f4c4e6c758955cad14e7530d 100644
--- a/src/main/java/net/minecraft/server/level/ChunkHolder.java
+++ b/src/main/java/net/minecraft/server/level/ChunkHolder.java
@@ -92,6 +92,8 @@ public class ChunkHolder {
this.playersInChunkTickRange = null;
}
// Paper end - optimise anyPlayerCloseEnoughForSpawning
+ long lastAutoSaveTime; // Paper - incremental autosave
+ long inactiveTimeStart; // Paper - incremental autosave
public ChunkHolder(ChunkPos pos, int level, LevelHeightAccessor world, LevelLightEngine lightingProvider, ChunkHolder.LevelChangeListener levelUpdateListener, ChunkHolder.PlayerProvider playersWatchingChunkProvider) {
this.futures = new AtomicReferenceArray(ChunkHolder.CHUNK_STATUSES.size());
@@ -498,7 +500,19 @@ public class ChunkHolder {
boolean flag2 = playerchunk_state.isOrAfter(ChunkHolder.FullChunkStatus.BORDER);
boolean flag3 = playerchunk_state1.isOrAfter(ChunkHolder.FullChunkStatus.BORDER);
+ boolean prevHasBeenLoaded = this.wasAccessibleSinceLastSave; // Paper
this.wasAccessibleSinceLastSave |= flag3;
+ // Paper start - incremental autosave
+ if (this.wasAccessibleSinceLastSave & !prevHasBeenLoaded) {
+ long timeSinceAutoSave = this.inactiveTimeStart - this.lastAutoSaveTime;
+ if (timeSinceAutoSave < 0) {
+ // safest bet is to assume autosave is needed here
+ timeSinceAutoSave = this.chunkMap.level.paperConfig.autoSavePeriod;
+ }
+ this.lastAutoSaveTime = this.chunkMap.level.getGameTime() - timeSinceAutoSave;
+ this.chunkMap.autoSaveQueue.add(this);
+ }
+ // Paper end
if (!flag2 && flag3) {
int expectCreateCount = ++this.fullChunkCreateCount; // Paper
this.fullChunkFuture = chunkStorage.prepareAccessibleChunk(this);
@@ -629,9 +643,33 @@ public class ChunkHolder {
}
public void refreshAccessibility() {
+ boolean prev = this.wasAccessibleSinceLastSave; // Paper
this.wasAccessibleSinceLastSave = ChunkHolder.getFullChunkStatus(this.ticketLevel).isOrAfter(ChunkHolder.FullChunkStatus.BORDER);
+ // Paper start - incremental autosave
+ if (prev != this.wasAccessibleSinceLastSave) {
+ if (this.wasAccessibleSinceLastSave) {
+ long timeSinceAutoSave = this.inactiveTimeStart - this.lastAutoSaveTime;
+ if (timeSinceAutoSave < 0) {
+ // safest bet is to assume autosave is needed here
+ timeSinceAutoSave = this.chunkMap.level.paperConfig.autoSavePeriod;
+ }
+ this.lastAutoSaveTime = this.chunkMap.level.getGameTime() - timeSinceAutoSave;
+ this.chunkMap.autoSaveQueue.add(this);
+ } else {
+ this.inactiveTimeStart = this.chunkMap.level.getGameTime();
+ this.chunkMap.autoSaveQueue.remove(this);
+ }
+ }
+ // Paper end
}
+ // Paper start - incremental autosave
+ public boolean setHasBeenLoaded() {
+ this.wasAccessibleSinceLastSave = getFullChunkStatus(this.ticketLevel).isOrAfter(ChunkHolder.FullChunkStatus.BORDER);
+ return this.wasAccessibleSinceLastSave;
+ }
+ // Paper end
+
public void replaceProtoChunk(ImposterProtoChunk chunk) {
for (int i = 0; i < this.futures.length(); ++i) {
CompletableFuture<Either<ChunkAccess, ChunkHolder.ChunkLoadingFailure>> completablefuture = (CompletableFuture) this.futures.get(i);
diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
index 2c9cd3619b0759905637eff746a761ebe89a38d8..1614b056d9e0c9e6b62d6c6a8926e87b2f3ad131 100644
--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
@@ -104,6 +104,7 @@ import net.minecraft.world.level.levelgen.structure.templatesystem.StructureMana
import net.minecraft.world.level.storage.DimensionDataStorage;
import net.minecraft.world.level.storage.LevelStorageSource;
import net.minecraft.world.phys.Vec3;
+import it.unimi.dsi.fastutil.objects.ObjectRBTreeSet; // Paper
import org.apache.commons.lang3.mutable.MutableBoolean;
import org.apache.commons.lang3.mutable.MutableObject;
import org.slf4j.Logger;
@@ -694,6 +695,64 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
}
+ // Paper start - incremental autosave
+ final ObjectRBTreeSet<ChunkHolder> autoSaveQueue = new ObjectRBTreeSet<>((playerchunk1, playerchunk2) -> {
+ int timeCompare = Long.compare(playerchunk1.lastAutoSaveTime, playerchunk2.lastAutoSaveTime);
+ if (timeCompare != 0) {
+ return timeCompare;
+ }
+
+ return Long.compare(MCUtil.getCoordinateKey(playerchunk1.pos), MCUtil.getCoordinateKey(playerchunk2.pos));
+ });
+
+ protected void saveIncrementally() {
+ int savedThisTick = 0;
+ // optimized since we search far less chunks to hit ones that need to be saved
+ List<ChunkHolder> reschedule = new java.util.ArrayList<>(this.level.paperConfig.maxAutoSaveChunksPerTick);
+ long currentTick = this.level.getGameTime();
+ long maxSaveTime = currentTick - this.level.paperConfig.autoSavePeriod;
+
+ for (Iterator<ChunkHolder> iterator = this.autoSaveQueue.iterator(); iterator.hasNext();) {
+ ChunkHolder playerchunk = iterator.next();
+ if (playerchunk.lastAutoSaveTime > maxSaveTime) {
+ break;
+ }
+
+ iterator.remove();
+
+ ChunkAccess ichunkaccess = playerchunk.getChunkToSave().getNow(null);
+ if (ichunkaccess instanceof LevelChunk) {
+ boolean shouldSave = ((LevelChunk)ichunkaccess).lastSaveTime <= maxSaveTime;
+
+ if (shouldSave && this.save(ichunkaccess) && this.level.entityManager.storeChunkSections(playerchunk.pos.toLong(), entity -> {})) {
+ ++savedThisTick;
+
+ if (!playerchunk.setHasBeenLoaded()) {
+ // do not fall through to reschedule logic
+ playerchunk.inactiveTimeStart = currentTick;
+ if (savedThisTick >= this.level.paperConfig.maxAutoSaveChunksPerTick) {
+ break;
+ }
+ continue;
+ }
+ }
+ }
+
+ reschedule.add(playerchunk);
+
+ if (savedThisTick >= this.level.paperConfig.maxAutoSaveChunksPerTick) {
+ break;
+ }
+ }
+
+ for (int i = 0, len = reschedule.size(); i < len; ++i) {
+ ChunkHolder playerchunk = reschedule.get(i);
+ playerchunk.lastAutoSaveTime = this.level.getGameTime();
+ this.autoSaveQueue.add(playerchunk);
+ }
+ }
+ // Paper end
+
protected void saveAllChunks(boolean flush) {
if (flush) {
List<ChunkHolder> list = (List) this.visibleChunkMap.values().stream().filter(ChunkHolder::wasAccessibleSinceLastSave).peek(ChunkHolder::refreshAccessibility).collect(Collectors.toList());
@@ -778,13 +837,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
}
int l = 0;
- ObjectIterator objectiterator = this.visibleChunkMap.values().iterator();
-
- while (l < 20 && shouldKeepTicking.getAsBoolean() && objectiterator.hasNext()) {
- if (this.saveChunkIfNeeded((ChunkHolder) objectiterator.next())) {
- ++l;
- }
- }
+ // Paper - incremental chunk and player saving
}
@@ -822,6 +875,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
this.level.unload(chunk);
}
+ this.autoSaveQueue.remove(holder); // Paper
this.lightEngine.updateChunkStatus(ichunkaccess.getPos());
this.lightEngine.tryScheduleUpdate();
@@ -1232,6 +1286,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
asyncSaveData, chunk);
chunk.setUnsaved(false);
+ chunk.setLastSaved(this.level.getGameTime()); // Paper - track last saved time
}
// Paper end
@@ -1241,6 +1296,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
if (!chunk.isUnsaved()) {
return false;
} else {
+ chunk.setLastSaved(this.level.getGameTime()); // Paper - track save time
chunk.setUnsaved(false);
ChunkPos chunkcoordintpair = chunk.getPos();
diff --git a/src/main/java/net/minecraft/server/level/ServerChunkCache.java b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
index 846e6f41fdb6413b10f908c6b3f5c199a9f5ef38..9079e469161098e1520f6b9fd963adedd500024b 100644
--- a/src/main/java/net/minecraft/server/level/ServerChunkCache.java
+++ b/src/main/java/net/minecraft/server/level/ServerChunkCache.java
@@ -813,6 +813,15 @@ public class ServerChunkCache extends ChunkSource {
} // Paper - Timings
}
+ // Paper start - duplicate save, but call incremental
+ public void saveIncrementally() {
+ this.runDistanceManagerUpdates();
+ try (co.aikar.timings.Timing timed = level.timings.chunkSaveData.startTiming()) { // Paper - Timings
+ this.chunkMap.saveIncrementally();
+ } // Paper - Timings
+ }
+ // Paper end
+
@Override
public void close() throws IOException {
// CraftBukkit start
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index 894186d25863a437e49ef0c10b2f2dab34af7ed0..38af4d10e2e09c0917ae8ff265e5a6c610fa4404 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1061,6 +1061,37 @@ public class ServerLevel extends Level implements WorldGenLevel {
return !this.server.isUnderSpawnProtection(this, pos, player) && this.getWorldBorder().isWithinBounds(pos);
}
+ // Paper start - derived from below
+ public void saveIncrementally(boolean doFull) {
+ ServerChunkCache chunkproviderserver = this.getChunkSource();
+
+ if (doFull) {
+ org.bukkit.Bukkit.getPluginManager().callEvent(new org.bukkit.event.world.WorldSaveEvent(getWorld()));
+ }
+
+ try (co.aikar.timings.Timing ignored = this.timings.worldSave.startTiming()) {
+ if (doFull) {
+ this.saveLevelData();
+ }
+
+ this.timings.worldSaveChunks.startTiming(); // Paper
+ if (!this.noSave()) chunkproviderserver.saveIncrementally();
+ this.timings.worldSaveChunks.stopTiming(); // Paper
+
+ // Copied from save()
+ // CraftBukkit start - moved from MinecraftServer.saveChunks
+ if (doFull) { // Paper
+ ServerLevel worldserver1 = this;
+
+ this.serverLevelData.setWorldBorder(worldserver1.getWorldBorder().createSettings());
+ this.serverLevelData.setCustomBossEvents(this.server.getCustomBossEvents().save());
+ this.convertable.saveDataTag(this.server.registryHolder, this.serverLevelData, this.server.getPlayerList().getSingleplayerData());
+ }
+ // CraftBukkit end
+ }
+ }
+ // Paper end
+
public void save(@Nullable ProgressListener progressListener, boolean flush, boolean savingDisabled) {
ServerChunkCache chunkproviderserver = this.getChunkSource();
diff --git a/src/main/java/net/minecraft/server/level/ServerPlayer.java b/src/main/java/net/minecraft/server/level/ServerPlayer.java
index 94fb29f8dbf4f60b59740efda68016411b3d74b0..30e82817418ebe7e61eab3ed290ce938dde42297 100644
--- a/src/main/java/net/minecraft/server/level/ServerPlayer.java
+++ b/src/main/java/net/minecraft/server/level/ServerPlayer.java
@@ -170,6 +170,7 @@ import org.bukkit.inventory.MainHand;
public class ServerPlayer extends Player {
private static final Logger LOGGER = LogUtils.getLogger();
+ public long lastSave = MinecraftServer.currentTick; // Paper
private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_XZ = 32;
private static final int NEUTRAL_MOB_DEATH_NOTIFICATION_RADII_Y = 10;
public ServerGamePacketListenerImpl connection;
diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
index e9470af5a168f54c78383553ca634e77ae2a4cf5..f19c9489d0b982a28e2ee8fac6940ecc11fac6af 100644
--- a/src/main/java/net/minecraft/server/players/PlayerList.java
+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
@@ -560,6 +560,7 @@ public abstract class PlayerList {
protected void save(ServerPlayer player) {
if (!player.getBukkitEntity().isPersistent()) return; // CraftBukkit
if (!player.didPlayerJoinEvent) return; // Paper - If we never fired PJE, we disconnected during login. Data has not changed, and additionally, our saved vehicle is not loaded! If we save now, we will lose our vehicle (CraftBukkit bug)
+ player.lastSave = MinecraftServer.currentTick; // Paper
this.playerIo.save(player);
ServerStatsCounter serverstatisticmanager = (ServerStatsCounter) player.getStats(); // CraftBukkit
@@ -1162,10 +1163,22 @@ public abstract class PlayerList {
}
public void saveAll() {
+ // Paper start - incremental player saving
+ this.saveAll(-1);
+ }
+
+ public void saveAll(int interval) {
net.minecraft.server.MCUtil.ensureMain("Save Players" , () -> { // Paper - Ensure main
MinecraftTimings.savePlayers.startTiming(); // Paper
+ int numSaved = 0;
+ long now = MinecraftServer.currentTick;
for (int i = 0; i < this.players.size(); ++i) {
- this.save(this.players.get(i));
+ ServerPlayer entityplayer = this.players.get(i);
+ if (interval == -1 || now - entityplayer.lastSave >= interval) {
+ this.save(entityplayer);
+ if (interval != -1 && ++numSaved <= com.destroystokyo.paper.PaperConfig.maxPlayerAutoSavePerTick) { break; }
+ }
+ // Paper end
}
MinecraftTimings.savePlayers.stopTiming(); // Paper
return null; }); // Paper - ensure main
diff --git a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
index 8038b37bdfdd41eadb4f3cb4dd7ef245051ed3a4..20b288fdef75c9994b174cb4d7d082c5e69eb26b 100644
--- a/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
+++ b/src/main/java/net/minecraft/world/level/chunk/ChunkAccess.java
@@ -458,6 +458,7 @@ public abstract class ChunkAccess implements BlockGetter, BiomeManager.NoiseBiom
public LevelHeightAccessor getHeightAccessorForGeneration() {
return this;
}
+ public void setLastSaved(long ticks) {} // Paper
// CraftBukkit start - decompile error
public static record TicksToSave(SerializableTickContainer<Block> blocks, SerializableTickContainer<Fluid> fluids) {
diff --git a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
index 9d667be3fe04b7d86986bd1ecaf4fce8b63198ae..dc95aaa62220f2042e287c7d0d69753b8e891fba 100644
--- a/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
+++ b/src/main/java/net/minecraft/world/level/chunk/LevelChunk.java
@@ -87,6 +87,12 @@ public class LevelChunk extends ChunkAccess {
private final Int2ObjectMap<GameEventDispatcher> gameEventDispatcherSections;
private final LevelChunkTicks<Block> blockTicks;
private final LevelChunkTicks<Fluid> fluidTicks;
+ // Paper start - track last save time
+ public long lastSaveTime;
+ public void setLastSaved(long ticks) {
+ this.lastSaveTime = ticks;
+ }
+ // Paper end
public LevelChunk(Level world, ChunkPos pos) {
this(world, pos, UpgradeData.EMPTY, new LevelChunkTicks<>(), new LevelChunkTicks<>(), 0L, (LevelChunkSection[]) null, (LevelChunk.PostLoadProcessor) null, (BlendingData) null);
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