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https://github.com/PaperMC/Paper.git
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aa52bf9e33
Mojang made some changes to priorities in 1.17 and it seems that these changes conflict with the changes made in this patch, which in some cases appears to cause excessive rescheduling of tasks. This, however, is not confirmed as such but seems to be the behavior that we're seeing to cause this issue, if mojang has adopted the changes we suggested, then a good chunk of this patch may be unneeded, but, this needs a much better look than I'm currently able to do
88 lines
4.6 KiB
Diff
88 lines
4.6 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Shane Freeder <theboyetronic@gmail.com>
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Date: Thu, 18 Feb 2021 20:23:28 +0000
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Subject: [PATCH] misc debugging dumps
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diff --git a/src/main/java/io/papermc/paper/util/TraceUtil.java b/src/main/java/io/papermc/paper/util/TraceUtil.java
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new file mode 100644
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index 0000000000000000000000000000000000000000..2d5494d2813b773e60ddba6790b750a9a08f21f8
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--- /dev/null
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+++ b/src/main/java/io/papermc/paper/util/TraceUtil.java
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@@ -0,0 +1,18 @@
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+package io.papermc.paper.util;
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+
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+import org.bukkit.Bukkit;
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+
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+public final class TraceUtil {
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+
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+ public static void dumpTraceForThread(Thread thread, String reason) {
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+ Bukkit.getLogger().warning(thread.getName() + ": " + reason);
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+ StackTraceElement[] trace = thread.getStackTrace();
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+ for (StackTraceElement traceElement : trace) {
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+ Bukkit.getLogger().warning("\tat " + traceElement);
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+ }
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+ }
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+
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+ public static void dumpTraceForThread(String reason) {
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+ new Throwable(reason).printStackTrace();
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+ }
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+}
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diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 2309d2f307569070ebb4c9b388021c0130d4b168..9feebee9c125642799cf8d3b22616db5ccd2a648 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
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+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -921,6 +921,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// CraftBukkit start
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private boolean hasStopped = false;
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public volatile boolean hasFullyShutdown = false; // Paper
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+ private boolean hasLoggedStop = false; // Paper
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private final Object stopLock = new Object();
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public final boolean hasStopped() {
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synchronized (this.stopLock) {
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@@ -935,6 +936,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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if (this.hasStopped) return;
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this.hasStopped = true;
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}
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+ if (!hasLoggedStop && isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper
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// Paper start - kill main thread, and kill it hard
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shutdownThread = Thread.currentThread();
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org.spigotmc.WatchdogThread.doStop(); // Paper
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@@ -1045,6 +1047,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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}
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public void safeShutdown(boolean flag, boolean isRestarting) {
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this.isRestarting = isRestarting;
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+ this.hasLoggedStop = true; // Paper
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+ if (isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread("Server stopped"); // Paper
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// Paper end
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this.running = false;
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if (flag) {
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diff --git a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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index 7da88bc52161dc32da22451077a4dfd8facb2de1..f4cff18afa816aa7efb2f80e0af51216129963a4 100644
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--- a/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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+++ b/src/main/java/net/minecraft/server/network/ServerLoginPacketListenerImpl.java
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@@ -200,6 +200,11 @@ public class ServerLoginPacketListenerImpl implements ServerLoginPacketListener
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}
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} catch (Exception exception) {
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TranslatableComponent chatmessage = new TranslatableComponent("multiplayer.disconnect.invalid_player_data");
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+ // Paper start
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+ if (MinecraftServer.getServer().isDebugging()) {
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+ exception.printStackTrace();
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+ }
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+ // Paper end
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this.connection.send(new ClientboundDisconnectPacket(chatmessage));
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this.connection.disconnect(chatmessage);
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diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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index 016299cc9e7327f5b29fd51df571fa23b45df6aa..cfad79b859abfeb9bd83843b04bff3fd5d2e0ac3 100644
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--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -940,6 +940,7 @@ public final class CraftServer implements Server {
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plugin.getDescription().getName(),
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"This plugin is not properly shutting down its async tasks when it is being reloaded. This may cause conflicts with the newly loaded version of the plugin"
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));
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+ if (console.isDebugging()) io.papermc.paper.util.TraceUtil.dumpTraceForThread(worker.getThread(), "still running"); // Paper
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}
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this.loadPlugins();
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this.enablePlugins(PluginLoadOrder.STARTUP);
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