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Fix premature unloading of neighbor chunks for world gen

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We must check the level tracker as ticket levels add "virtual"
tickets to neighbors.

Also added neighbor tracking during generation to be extra safe.

Fixes #3465
Fixes #3451
Fixes #3459
This commit is contained in:
Aikar 2020-05-28 22:59:40 -04:00
parent fde81356bb
commit ff4ca31f0d
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GPG Key ID: 401ADFC9891FAAFE
1 changed files with 87 additions and 12 deletions
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99
Spigot-Server-Patches/0532-Unload-leaked-Cached-Chunks.patch
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@ -17,8 +17,43 @@ Ticking Chunks timings/profiler results.
We will now detect these chunks in that iteration, and automatically
add it to the unload queue when the chunk is found without any tickets.
diff --git a/src/main/java/net/minecraft/server/ChunkMapDistance.java b/src/main/java/net/minecraft/server/ChunkMapDistance.java
index 9805361e2d49fa1cfecf0c5811187fc503d0ad8e..91b9946f987a397960a08c7a606fcf4e2607e0ae 100644
--- a/src/main/java/net/minecraft/server/ChunkMapDistance.java
+++ b/src/main/java/net/minecraft/server/ChunkMapDistance.java
@@ -33,7 +33,7 @@ public abstract class ChunkMapDistance {
public final Long2ObjectOpenHashMap<ArraySetSorted<Ticket<?>>> tickets = new Long2ObjectOpenHashMap();
private final ChunkMapDistance.a e = new ChunkMapDistance.a();
public static final int MOB_SPAWN_RANGE = 8; //private final ChunkMapDistance.b f = new ChunkMapDistance.b(8); // Paper - no longer used
- private final ChunkMapDistance.c g = new ChunkMapDistance.c(33);
+ private final ChunkMapDistance.c g = new ChunkMapDistance.c(33); public final ChunkMapDistance.c getLevelTracker() { return g; } // Paper
// Paper start use a queue, but still keep unique requirement
public final java.util.Queue<PlayerChunk> pendingChunkUpdates = new java.util.ArrayDeque<PlayerChunk>() {
@Override
@@ -471,6 +471,12 @@ public abstract class ChunkMapDistance {
this.e = i;
}
+ // Paper start - check diff below
+ public boolean isChunkLoaded(long i) {
+ return this.c(this.c(i));
+ }
+ // Paper end
+
private void a(long i, int j, boolean flag, boolean flag1) {
if (flag != flag1) {
Ticket<?> ticket = new Ticket<>(TicketType.PLAYER, 33, new ChunkCoordIntPair(i)); // Paper - no-tick view distance
@@ -478,7 +484,7 @@ public abstract class ChunkMapDistance {
if (flag1) {
ChunkMapDistance.this.j.a(ChunkTaskQueueSorter.a(() -> { // CraftBukkit - decompile error
ChunkMapDistance.this.m.execute(() -> {
- if (this.c(this.c(i))) {
+ if (this.c(this.c(i))) { // Paper - diff above isChunkLoaded
ChunkMapDistance.this.addTicket(i, ticket);
ChunkMapDistance.this.l.add(i);
} else {
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..1209fbf1c906511954bc61ffb1a8882498855ba4 100644
index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..32b6d28cd28d60937eca14187287645ea2797da7 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -560,6 +560,7 @@ public class ChunkProviderServer extends IChunkProvider {
@ -46,7 +81,7 @@ index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..1209fbf1c906511954bc61ffb1a88824
});
this.world.getMethodProfiler().enter("customSpawners");
if (flag1) {
@@ -913,6 +915,37 @@ public class ChunkProviderServer extends IChunkProvider {
@@ -913,6 +915,40 @@ public class ChunkProviderServer extends IChunkProvider {
this.playerChunkMap.g();
}
@ -54,9 +89,8 @@ index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..1209fbf1c906511954bc61ffb1a88824
+ private void checkInactiveChunk(PlayerChunk playerchunk, long time) {
+ int ticketLevel = playerchunk.getTicketLevel();
+ if (ticketLevel > 33 && ticketLevel == playerchunk.oldTicketLevel &&
+ (playerchunk.lastActivity == 0 || time - playerchunk.lastActivity > 20*180) &&
+ playerchunk.location.pair() % 20 == 0 && playerChunkMap.unloadQueue.size() < 100 &&
+ PlayerChunk.getChunkState(ticketLevel) == PlayerChunk.State.INACCESSIBLE
+ (playerchunk.lastActivity == 0 || time - playerchunk.lastActivity > 20*5) &&
+ playerchunk.location.pair() % 20 == 0 && playerChunkMap.unloadQueue.size() < 100
+ ) {
+ ChunkStatus chunkHolderStatus = playerchunk.getChunkHolderStatus();
+ ChunkStatus desiredStatus = PlayerChunk.getChunkStatus(ticketLevel);
@ -69,12 +103,16 @@ index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..1209fbf1c906511954bc61ffb1a88824
+ }
+ playerchunk.lastActivity = time;
+ Chunk chunk = playerchunk.getChunk();
+ if ((chunk != null && chunk.isAnyNeighborsLoaded()) || !playerchunk.neighborPriorities.isEmpty()) {
+ if ((chunk != null && chunk.isAnyNeighborsLoaded()) || !playerchunk.neighborPriorities.isEmpty() || !playerchunk.dependendedOnBy.isEmpty()) {
+ return;
+ }
+ long key = playerchunk.location.pair();
+ ArraySetSorted<Ticket<?>> tickets = playerChunkMap.chunkDistanceManager.tickets.get(key);
+ if (tickets == null || tickets.isEmpty()) {
+ if (playerChunkMap.playerViewDistanceNoTickMap.getObjectsInRange(key) != null) {
+ return;
+ }
+ PlayerChunkMap.a distanceManager = playerChunkMap.chunkDistanceManager;
+ ArraySetSorted<Ticket<?>> tickets = distanceManager.tickets.get(key);
+ if ((tickets == null || tickets.isEmpty()) && !distanceManager.getLevelTracker().isChunkLoaded(key)) {
+ playerChunkMap.unloadQueue.add(key);
+ }
+ }
@ -85,18 +123,19 @@ index 54e89c9cc6c47ff2c4f4dd5d4c22a391f8a3d6e0..1209fbf1c906511954bc61ffb1a88824
public String getName() {
return "ServerChunkCache: " + this.h();
diff --git a/src/main/java/net/minecraft/server/PlayerChunk.java b/src/main/java/net/minecraft/server/PlayerChunk.java
index b8fe42e8123e972b1ec97b048c35d90118076e66..ecac7b72759a3884020b9c19c58d3db3338e0fc3 100644
index b8fe42e8123e972b1ec97b048c35d90118076e66..f213a08e42db20c511f7d70434b03ee4040676bc 100644
--- a/src/main/java/net/minecraft/server/PlayerChunk.java
+++ b/src/main/java/net/minecraft/server/PlayerChunk.java
@@ -44,6 +44,7 @@ public class PlayerChunk {
@@ -44,6 +44,8 @@ public class PlayerChunk {
long lastAutoSaveTime; // Paper - incremental autosave
long inactiveTimeStart; // Paper - incremental autosave
+ long lastActivity; // Paper - fix chunk leak
+ java.util.concurrent.ConcurrentHashMap<ChunkCoordIntPair, Boolean> dependendedOnBy = new java.util.concurrent.ConcurrentHashMap<>(); // Paper
// Paper start - optimise isOutsideOfRange
// cached here to avoid a map lookup
@@ -562,6 +563,7 @@ public class PlayerChunk {
@@ -562,6 +564,7 @@ public class PlayerChunk {
protected void a(PlayerChunkMap playerchunkmap) {
ChunkStatus chunkstatus = getChunkStatus(this.oldTicketLevel);
ChunkStatus chunkstatus1 = getChunkStatus(this.ticketLevel);
@ -105,7 +144,7 @@ index b8fe42e8123e972b1ec97b048c35d90118076e66..ecac7b72759a3884020b9c19c58d3db3
boolean flag1 = this.ticketLevel <= PlayerChunkMap.GOLDEN_TICKET; // Paper - diff on change: (flag1 = new ticket level is in loadable range)
PlayerChunk.State playerchunk_state = getChunkState(this.oldTicketLevel);
diff --git a/src/main/java/net/minecraft/server/PlayerChunkMap.java b/src/main/java/net/minecraft/server/PlayerChunkMap.java
index 2b09437642ec846d025b226692f2290f9bb5b556..b7d8a7487e303c2c44160ec1093987b3e0d175bc 100644
index f42507f5a17f9388db738218f58ca76f863274ff..d4bcbf8c1030eee55064b246b25391c0a5201d83 100644
--- a/src/main/java/net/minecraft/server/PlayerChunkMap.java
+++ b/src/main/java/net/minecraft/server/PlayerChunkMap.java
@@ -639,6 +639,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
@ -133,6 +172,42 @@ index 2b09437642ec846d025b226692f2290f9bb5b556..b7d8a7487e303c2c44160ec1093987b3
PlayerChunk playerchunk = (PlayerChunk) this.updatingChunks.remove(j);
if (playerchunk != null) {
@@ -1147,9 +1151,27 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
return completablefuture.thenComposeAsync((either) -> {
return either.map((list) -> { // Paper - Shut up.
try {
+ // Paper start
+ list.forEach(chunk -> {
+ PlayerChunk updatingChunk = getUpdatingChunk(chunk.getPos().pair());
+ if (updatingChunk != null) {
+ updatingChunk.dependendedOnBy.put(playerchunk.location, true);
+ updatingChunk.lastActivity = world.getTime();
+ }
+ });
+ // Paper end
CompletableFuture<Either<IChunkAccess, PlayerChunk.Failure>> completablefuture1 = chunkstatus.a(this.world, this.chunkGenerator, this.definedStructureManager, this.lightEngine, (ichunkaccess) -> {
return this.c(playerchunk);
}, list);
+ // Paper start
+ completablefuture1.whenComplete((unused, unused2) -> list.forEach(chunk -> {
+ PlayerChunk updatingChunk = getUpdatingChunk(chunk.getPos().pair());
+ if (updatingChunk != null) {
+ updatingChunk.dependendedOnBy.remove(playerchunk.location);
+ updatingChunk.lastActivity = world.getTime();
+ }
+ }));
+ // Paper end
this.worldLoadListener.a(chunkcoordintpair, chunkstatus);
return completablefuture1;
@@ -1167,6 +1189,7 @@ public class PlayerChunkMap extends IChunkLoader implements PlayerChunk.d {
return CompletableFuture.completedFuture(Either.right(playerchunk_failure));
});
}, (runnable) -> {
+ playerchunk.lastActivity = world.getTime(); // Paper
this.mailboxWorldGen.a(ChunkTaskQueueSorter.a(playerchunk, runnable)); // CraftBukkit - decompile error
});
}
diff --git a/src/main/java/net/minecraft/server/StructureGenerator.java b/src/main/java/net/minecraft/server/StructureGenerator.java
index acfe732af5b9f63fc2f6b78499defabe2e73ee45..25b19346fc1c702cc37275d0ec16abbbfacfb418 100644
--- a/src/main/java/net/minecraft/server/StructureGenerator.java