PaperMC/patches/server/0134-Do-not-submit-profile-lookups-to-worldgen-threads.patch
Spottedleaf da9d110d5b Remove chunk save reattempt patch
This patch does not appear to be doing anything useful, and may
hide errors.

Currently, the save logic does not run through this path either
so it did not do anything.

Additionally, properly implement support for handling
RegionFileSizeException in Moonrise.
2024-11-28 18:27:59 -08:00

77 lines
4.8 KiB
Diff

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
index 2ff5a6517d717bbd4c944572040bd30866347341..8cac2075077b1d9c2b01e09c99780ff9e204abb2 100644
--- a/src/main/java/net/minecraft/Util.java
+++ b/src/main/java/net/minecraft/Util.java
@@ -95,6 +95,22 @@ public class Util {
private static final TracingExecutor BACKGROUND_EXECUTOR = makeExecutor("Main");
private static final TracingExecutor IO_POOL = makeIoExecutor("IO-Worker-", false);
private static final TracingExecutor 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) -> {
+ LOGGER.error("Uncaught exception in thread " + thread.getName(), throwable);
+ });
+ return ret;
+ }
+ });
+ // Paper end - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
private static final DateTimeFormatter FILENAME_DATE_TIME_FORMATTER = DateTimeFormatter.ofPattern("yyyy-MM-dd_HH.mm.ss", Locale.ROOT);
public static final int LINEAR_LOOKUP_THRESHOLD = 8;
private static final Set<String> ALLOWED_UNTRUSTED_LINK_PROTOCOLS = Set.of("http", "https");
diff --git a/src/main/java/net/minecraft/server/players/GameProfileCache.java b/src/main/java/net/minecraft/server/players/GameProfileCache.java
index c89f4a885982f06823886c81fd386b8de029a3dd..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 {
CompletableFuture<Optional<GameProfile>> completablefuture1 = CompletableFuture.supplyAsync(() -> {
return this.get(username);
- }, Util.backgroundExecutor().forName("getProfile")).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);
}, 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
index 59187889db52ccb132460b0e937d0bd5cbeb77f4..4b7176779c455a876419a497a8178163a68553fc 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
@@ -105,7 +105,7 @@ public class SkullBlockEntity extends BlockEntity {
ProfileResult profileResult = apiServices.sessionService().fetchProfile(uuid, true);
return Optional.ofNullable(profileResult).map(ProfileResult::profile);
}
- }, Util.backgroundExecutor().forName("fetchProfile"));
+ }, Util.PROFILE_EXECUTOR); // Paper - don't submit BLOCKING PROFILE LOOKUPS to the world gen thread
}
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 26a7c2d37e6a8284ab444a9edad967bdcad1e5a3..210fdad5f2041368fc359b275f1cbf05b70b6989 100644
--- a/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
+++ b/src/main/java/org/bukkit/craftbukkit/profile/CraftPlayerProfile.java
@@ -161,7 +161,7 @@ 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() {