Paper/patches/server/0139-Do-not-submit-profile-lookups-to-worldgen-threads.patch

78 lines
4.7 KiB
Diff
Raw Normal View History

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sun, 8 Aug 2021 16:26:46 -0700
Subject: [PATCH] Do not submit profile lookups to worldgen threads
They block. On network I/O.
If enough tasks are submitted the server will eventually stall
out due to a sync load, as the worldgen threads will be
stalling on profile lookups.
diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
2024-04-24 03:25:14 +02:00
index 9d91e7890d8cba72f0aa2ca9661f6de7ae8a0dcd..cf54e2c8e8aadb9e7343382a5ba59c657234c9b9 100644
--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
2024-04-24 03:25:14 +02:00
@@ -93,6 +93,22 @@ public class Util {
private static final ExecutorService BACKGROUND_EXECUTOR = makeExecutor("Main");
2023-12-05 22:34:01 +01:00
private static final ExecutorService IO_POOL = makeIoExecutor("IO-Worker-", false);
private static final ExecutorService DOWNLOAD_POOL = makeIoExecutor("Download-", true);
+ // Paper start - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
+ public static final ExecutorService PROFILE_EXECUTOR = Executors.newFixedThreadPool(2, new java.util.concurrent.ThreadFactory() {
+
+ private final AtomicInteger count = new AtomicInteger();
+
+ @Override
+ public Thread newThread(Runnable run) {
+ Thread ret = new Thread(run);
+ ret.setName("Profile Lookup Executor #" + this.count.getAndIncrement());
+ ret.setUncaughtExceptionHandler((Thread thread, Throwable throwable) -> {
2022-02-28 23:02:20 +01:00
+ LOGGER.error("Uncaught exception in thread " + thread.getName(), throwable);
+ });
+ return ret;
+ }
+ });
+ // Paper end - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
2022-07-27 21:49:24 +02:00
private static final DateTimeFormatter FILENAME_DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss", Locale.ROOT);
2024-04-24 03:25:14 +02:00
public static final int LINEAR_LOOKUP_THRESHOLD = 8;
2023-09-21 22:35:39 +02:00
public static final long NANOS_PER_MILLI = 1000000L;
diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
2024-04-24 03:25:14 +02:00
index aeb0c7ce9b6f93dadd407dbdefba053568f2e2fe..416b26c2ab62b29d640169166980e398d5824b14 100644
--- a/src/main/java/net/minecraft/server/players/GameProfileCache.java
+++ b/src/main/java/net/minecraft/server/players/GameProfileCache.java
@@ -169,7 +169,7 @@ public class GameProfileCache {
} else {
2023-09-21 22:35:39 +02:00
CompletableFuture<Optional<GameProfile>> completablefuture1 = CompletableFuture.supplyAsync(() -> {
return this.get(username);
- }, Util.backgroundExecutor()).whenCompleteAsync((optional, throwable) -> {
+ }, Util.PROFILE_EXECUTOR).whenCompleteAsync((optional, throwable) -> { // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
this.requests.remove(username);
2023-09-21 22:35:39 +02:00
}, this.executor);
diff --git a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
2024-04-24 03:25:14 +02:00
index 6097e0ab387cfa4c2c9ab0389fc5bb6cd899ecc3..ebba6bc5b337d19e32be5a78294501ed8300f2bd 100644
--- a/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
+++ b/src/main/java/net/minecraft/world/level/block/entity/SkullBlockEntity.java
2024-04-24 03:25:14 +02:00
@@ -105,7 +105,7 @@ public class SkullBlockEntity extends BlockEntity {
ProfileResult profileResult = apiServices.sessionService().fetchProfile(uuid, true);
return Optional.ofNullable(profileResult).map(ProfileResult::profile);
2023-09-21 22:35:39 +02:00
}
- }, Util.backgroundExecutor());
+ }, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
2023-09-21 22:35:39 +02:00
}
2024-04-24 03:25:14 +02:00
public static void clear() {
diff --git a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
index 866f9d00669923ee01ac97399cd78b5ee58f950f..6f0edd4d1c473179c03253326a3c7b5910ec53ad 100644
--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
@@ -134,7 +134,7 @@ public final class CraftPlayerProfile implements PlayerProfile {
@Override
public CompletableFuture<PlayerProfile> update() {
- return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.backgroundExecutor());
+ return CompletableFuture.supplyAsync(this::getUpdatedProfile, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
}
private CraftPlayerProfile getUpdatedProfile() {