609 Zeilen
34 KiB
Diff
609 Zeilen
34 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 12 Apr 2020 15:50:48 -0400
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Subject: [PATCH] Improved Watchdog Support
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Forced Watchdog Crash support and Improve Async Shutdown
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If the request to shut down the server is received while we are in
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a watchdog hang, immediately treat it as a crash and begin the shutdown
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process. Shutdown process is now improved to also shutdown cleanly when
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not using restart scripts either.
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If a server is deadlocked, a server owner can send SIGUP (or any other signal
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the JVM understands to shut down as it currently does) and the watchdog
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will no longer need to wait until the full timeout, allowing you to trigger
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a close process and try to shut the server down gracefully, saving player and
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world data.
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Previously there was no way to trigger this outside of waiting for a full watchdog
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timeout, which may be set to a really long time...
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Additionally, fix everything to do with shutting the server down asynchronously.
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Previously, nearly everything about the process was fragile and unsafe. Main might
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not have actually been frozen, and might still be manipulating state.
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Or, some reuest might ask main to do something in the shutdown but main is dead.
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Or worse, other things might start closing down items such as the Console or Thread Pool
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before we are fully shutdown.
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This change tries to resolve all of these issues by moving everything into the stop
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method and guaranteeing only one thread is stopping the server.
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We then issue Thread Death to the main thread of another thread initiates the stop process.
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We have to ensure Thread Death propagates correctly though to stop main completely.
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This is to ensure that if main isn't truely stuck, it's not manipulating state we are trying to save.
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This also moves all plugins who register "delayed init" tasks to occur just before "Done" so they
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are properly accounted for and wont trip watchdog on init.
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diff --git a/src/main/java/com/destroystokyo/paper/Metrics.java b/src/main/java/com/destroystokyo/paper/Metrics.java
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index 0b9e689d57705965721b5c55bc45d36657f360e4..dee00aac05f1acf050f05d4db557a08dd0f301c8 100644
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--- a/src/main/java/com/destroystokyo/paper/Metrics.java
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+++ b/src/main/java/com/destroystokyo/paper/Metrics.java
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@@ -92,7 +92,12 @@ public class Metrics {
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* Starts the Scheduler which submits our data every 30 minutes.
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*/
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private void startSubmitting() {
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- final Runnable submitTask = this::submitData;
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+ final Runnable submitTask = () -> {
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+ if (MinecraftServer.getServer().hasStopped()) {
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+ return;
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+ }
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+ submitData();
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+ };
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// Many servers tend to restart at a fixed time at xx:00 which causes an uneven distribution of requests on the
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// bStats backend. To circumvent this problem, we introduce some randomness into the initial and second delay.
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diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
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index 4008fbe506e74f2c463dc7b12f5dd0f3b6fc342d..766ab2fe536a2acccaec28e922ccf8993b0790dc 100644
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--- a/src/main/java/net/minecraft/CrashReport.java
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+++ b/src/main/java/net/minecraft/CrashReport.java
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@@ -257,6 +257,7 @@ public class CrashReport {
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}
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public static CrashReport forThrowable(Throwable cause, String title) {
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+ if (cause instanceof ThreadDeath) com.destroystokyo.paper.util.SneakyThrow.sneaky(cause); // Paper
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while (cause instanceof CompletionException && cause.getCause() != null) {
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cause = cause.getCause();
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}
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diff --git a/src/main/java/net/minecraft/Util.java b/src/main/java/net/minecraft/Util.java
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index c2f747226f10479c826849af898538610a2dd659..83f9f97586f8c0e9d228923e4fec6f121a6702e2 100644
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--- a/src/main/java/net/minecraft/Util.java
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+++ b/src/main/java/net/minecraft/Util.java
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@@ -129,6 +129,7 @@ public class Util {
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return Util.IO_POOL;
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}
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+ public static void shutdownServerThreadPool() { shutdownExecutors(); } // Paper - OBFHELPER
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public static void shutdownExecutors() {
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shutdownExecutor(Util.BACKGROUND_EXECUTOR);
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shutdownExecutor(Util.IO_POOL);
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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 99ee9de92264381a064066bc22bb66b4b2852a2e..e5ad635a480d32e7a10ee92c65cfc18a98beafad 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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@@ -269,7 +269,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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public int autosavePeriod;
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public boolean serverAutoSave = false; // Paper
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public Commands vanillaCommandDispatcher;
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- private boolean forceTicks;
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+ public boolean forceTicks; // Paper
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// CraftBukkit end
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// Spigot start
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public static final int TPS = 20;
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@@ -279,6 +279,9 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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public final SlackActivityAccountant slackActivityAccountant = new SlackActivityAccountant();
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// Spigot end
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+ public volatile Thread shutdownThread; // Paper
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+ public volatile boolean abnormalExit = false; // Paper
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+
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public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
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AtomicReference<S> atomicreference = new AtomicReference();
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Thread thread = new Thread(() -> {
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@@ -851,6 +854,7 @@ 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 final Object stopLock = new Object();
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public final boolean hasStopped() {
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synchronized (stopLock) {
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@@ -865,6 +869,23 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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if (hasStopped) return;
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hasStopped = true;
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}
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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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+ if (!isSameThread()) {
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+ MinecraftServer.LOGGER.info("Stopping main thread (Ignore any thread death message you see! - DO NOT REPORT THREAD DEATH TO PAPER)");
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+ while (this.getRunningThread().isAlive()) {
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+ this.getRunningThread().stop();
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+ try {
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+ Thread.sleep(1);
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+ } catch (InterruptedException e) {}
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+ }
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+ // We've just obliterated the main thread, this will prevent stop from dying when removing players
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+ MinecraftServer.getServer().getAllLevels().forEach(world -> {
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+ world.tickingEntities = false;
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+ });
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+ }
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+ // Paper end
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// CraftBukkit end
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MinecraftServer.LOGGER.info("Stopping server");
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MinecraftTimings.stopServer(); // Paper
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@@ -930,7 +951,18 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.getProfileCache().b(false); // Paper
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}
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// Spigot end
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+ // Paper start - move final shutdown items here
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+ LOGGER.info("Flushing Chunk IO");
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com.destroystokyo.paper.io.PaperFileIOThread.Holder.INSTANCE.close(true, true); // Paper
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+ LOGGER.info("Closing Thread Pool");
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+ Util.shutdownServerThreadPool(); // Paper
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+ LOGGER.info("Closing Server");
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+ try {
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+ net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
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+ } catch (Exception e) {
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+ }
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+ this.onServerExit();
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+ // Paper end
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}
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public String getLocalIp() {
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@@ -1023,6 +1055,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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protected void runServer() {
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try {
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+ long serverStartTime = Util.getNanos(); // Paper
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if (this.initServer()) {
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this.nextTickTime = Util.getMillis();
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this.status.setDescription(new TextComponent(this.motd));
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@@ -1030,6 +1063,18 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.updateStatusIcon(this.status);
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// Spigot start
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+ // Paper start - move done tracking
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+ LOGGER.info("Running delayed init tasks");
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+ this.server.getScheduler().mainThreadHeartbeat(this.tickCount); // run all 1 tick delay tasks during init,
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+ // this is going to be the first thing the tick process does anyways, so move done and run it after
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+ // everything is init before watchdog tick.
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+ // anything at 3+ won't be caught here but also will trip watchdog....
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+ // tasks are default scheduled at -1 + delay, and first tick will tick at 1
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+ String doneTime = String.format(java.util.Locale.ROOT, "%.3fs", (double) (Util.getNanos() - serverStartTime) / 1.0E9D);
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+ LOGGER.info("Done ({})! For help, type \"help\"", doneTime);
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+ // Paper end
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+
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+ org.spigotmc.WatchdogThread.tick(); // Paper
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org.spigotmc.WatchdogThread.hasStarted = true; // Paper
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Arrays.fill( recentTps, 20 );
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long start = System.nanoTime(), curTime, tickSection = start; // Paper - Further improve server tick loop
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@@ -1085,6 +1130,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.onServerCrash((CrashReport) null);
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}
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} catch (Throwable throwable) {
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+ // Paper start
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+ if (throwable instanceof ThreadDeath) {
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+ MinecraftServer.LOGGER.error("Main thread terminated by WatchDog due to hard crash", throwable);
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+ return;
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+ }
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+ // Paper end
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MinecraftServer.LOGGER.error("Encountered an unexpected exception", throwable);
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// Spigot Start
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if ( throwable.getCause() != null )
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@@ -1116,14 +1167,14 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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} catch (Throwable throwable1) {
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MinecraftServer.LOGGER.error("Exception stopping the server", throwable1);
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} finally {
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- org.spigotmc.WatchdogThread.doStop(); // Spigot
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+ //org.spigotmc.WatchdogThread.doStop(); // Spigot // Paper - move into stop
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// CraftBukkit start - Restore terminal to original settings
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try {
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- net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
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+ //net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Move into stop
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} catch (Exception ignored) {
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}
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// CraftBukkit end
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- this.onServerExit();
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+ //this.exit(); // Paper - moved into stop
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}
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}
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@@ -1179,6 +1230,12 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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@Override
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public TickTask wrapRunnable(Runnable runnable) {
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+ // Paper start - anything that does try to post to main during watchdog crash, run on watchdog
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+ if (this.hasStopped && Thread.currentThread().equals(shutdownThread)) {
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+ runnable.run();
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+ runnable = () -> {};
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+ }
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+ // Paper end
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return new TickTask(this.tickCount, runnable);
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}
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@@ -1421,6 +1478,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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try {
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crashreport = CrashReport.forThrowable(throwable, "Exception ticking world");
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} catch (Throwable t) {
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+ if (throwable instanceof ThreadDeath) { throw (ThreadDeath)throwable; } // Paper
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throw new RuntimeException("Error generating crash report", t);
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}
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// Spigot End
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@@ -1878,7 +1936,8 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.packRepository.setSelected(datapacks);
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this.worldData.setDataPackConfig(getSelectedPacks(this.packRepository));
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datapackresources.updateGlobals();
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- this.getPlayerList().saveAll();
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+ if (Thread.currentThread() != this.serverThread) return; // Paper
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+ //this.getPlayerList().savePlayers(); // Paper - we don't need to do this
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this.getPlayerList().reloadResources();
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this.functionManager.replaceLibrary(this.resources.getFunctionLibrary());
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this.structureManager.onResourceManagerReload(this.resources.getResourceManager());
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diff --git a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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index f8ddc0aa98874c7879a51e76d1a629cbdaf58812..6477ba1f31d977f8199fb4c7532938920b385ae7 100644
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--- a/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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+++ b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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@@ -276,7 +276,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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long j = Util.getNanos() - i;
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String s = String.format(Locale.ROOT, "%.3fs", (double) j / 1.0E9D);
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- DedicatedServer.LOGGER.info("Done ({})! For help, type \"help\"", s);
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+ //DedicatedServer.LOGGER.info("Done ({})! For help, type \"help\"", s); // Paper moved to after init
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if (dedicatedserverproperties.announcePlayerAchievements != null) {
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((GameRules.BooleanValue) this.getGameRules().getRule(GameRules.RULE_ANNOUNCE_ADVANCEMENTS)).set(dedicatedserverproperties.announcePlayerAchievements, (MinecraftServer) this);
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}
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@@ -404,7 +404,8 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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//this.remoteStatusListener.b(); // Paper - don't wait for remote connections
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}
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- System.exit(0); // CraftBukkit
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+ hasFullyShutdown = true; // Paper
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+ System.exit(this.abnormalExit ? 70 : 0); // CraftBukkit // Paper
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}
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@Override
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@@ -737,7 +738,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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@Override
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public void stopServer() {
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super.stopServer();
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- Util.shutdownExecutors();
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+ //SystemUtils.h(); // Paper - moved into super
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}
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@Override
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diff --git a/src/main/java/net/minecraft/server/level/ChunkMap.java b/src/main/java/net/minecraft/server/level/ChunkMap.java
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index 99eee56d6e66b79dd48ecbd1eeebc08174003f4a..49728aab7512ea8486d277d34e80d3c6a4727aac 100644
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--- a/src/main/java/net/minecraft/server/level/ChunkMap.java
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+++ b/src/main/java/net/minecraft/server/level/ChunkMap.java
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@@ -534,6 +534,7 @@ public class ChunkMap extends ChunkStorage implements ChunkHolder.PlayerProvider
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MutableBoolean mutableboolean = new MutableBoolean();
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do {
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+ boolean isShuttingDown = level.getServer().hasStopped(); // Paper
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mutableboolean.setFalse();
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list.stream().map((playerchunk) -> {
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CompletableFuture completablefuture;
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diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
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index b9978d296b83e73d3395b8254c0e8ccd9b36d0fa..bf4e50cd1d561456c033cda2d5c5487c5e3fe1eb 100644
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--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
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+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
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@@ -171,7 +171,7 @@ public class ServerLevel extends net.minecraft.world.level.Level implements Worl
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private final Queue<Entity> toAddAfterTick = Queues.newArrayDeque();
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public final List<ServerPlayer> players = Lists.newArrayList(); // Paper - private -> public
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public final ServerChunkCache chunkSource; // Paper - public
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- boolean tickingEntities;
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+ public boolean tickingEntities; // Paper - expose for watchdog
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// Paper start
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List<java.lang.Runnable> afterEntityTickingTasks = Lists.newArrayList();
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public void doIfNotEntityTicking(java.lang.Runnable run) {
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diff --git a/src/main/java/net/minecraft/server/players/PlayerList.java b/src/main/java/net/minecraft/server/players/PlayerList.java
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index 30666fca36b683158ff60302684b5093f5536e24..984ac19dcab446531c816e365c7c149e2c49d567 100644
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--- a/src/main/java/net/minecraft/server/players/PlayerList.java
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+++ b/src/main/java/net/minecraft/server/players/PlayerList.java
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@@ -503,7 +503,7 @@ public abstract class PlayerList {
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cserver.getPluginManager().callEvent(playerQuitEvent);
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entityplayer.getBukkitEntity().disconnect(playerQuitEvent.getQuitMessage());
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- entityplayer.doTick(); // SPIGOT-924
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+ if (server.isSameThread()) entityplayer.doTick(); // SPIGOT-924 // Paper - don't tick during emergency shutdowns (Watchdog)
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// CraftBukkit end
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// Paper start - Remove from collideRule team if needed
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diff --git a/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java b/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
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index a5ce61be7d6e85ac289730d9671e66a7190529f9..add18ba4833686ff51fbb280b0a5759f142b3f91 100644
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--- a/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
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+++ b/src/main/java/net/minecraft/util/thread/BlockableEventLoop.java
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@@ -135,6 +135,7 @@ public abstract class BlockableEventLoop<R extends Runnable> implements Processo
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try {
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task.run();
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} catch (Exception exception) {
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+ if (exception.getCause() instanceof ThreadDeath) throw exception; // Paper
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BlockableEventLoop.LOGGER.fatal("Error executing task on {}", this.name(), exception);
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}
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diff --git a/src/main/java/net/minecraft/world/level/Level.java b/src/main/java/net/minecraft/world/level/Level.java
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index 632f32405053fbcff2fd26fa99f98c6add9f9dc7..5860e7866724abd35bde2a5710d9c92799e5de67 100644
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--- a/src/main/java/net/minecraft/world/level/Level.java
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+++ b/src/main/java/net/minecraft/world/level/Level.java
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@@ -858,6 +858,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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gameprofilerfiller.pop();
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} catch (Throwable throwable) {
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+ if (throwable instanceof ThreadDeath) throw throwable; // Paper
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// Paper start - Prevent tile entity and entity crashes
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String msg = "TileEntity threw exception at " + tileentity.getLevel().getWorld().getName() + ":" + tileentity.getBlockPos().getX() + "," + tileentity.getBlockPos().getY() + "," + tileentity.getBlockPos().getZ();
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System.err.println(msg);
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@@ -932,6 +933,7 @@ public abstract class Level implements LevelAccessor, AutoCloseable {
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try {
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tickConsumer.accept(entity);
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} catch (Throwable throwable) {
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+ if (throwable instanceof ThreadDeath) throw throwable; // Paper
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// Paper start - Prevent tile entity and entity crashes
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String msg = "Entity threw exception at " + entity.level.getWorld().getName() + ":" + entity.getX() + "," + entity.getY() + "," + entity.getZ();
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System.err.println(msg);
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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 3f35e93b42efd03ff1002f09962fe3da51fb4c3f..43c37e660a8a7f9d326ad38e66f9aa7c53c7b87c 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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@@ -1839,7 +1839,7 @@ public final class CraftServer implements Server {
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@Override
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public boolean isPrimaryThread() {
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- return Thread.currentThread().equals(console.serverThread); // Paper - Fix issues with detecting main thread properly
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+ return Thread.currentThread().equals(console.serverThread) || Thread.currentThread().equals(net.minecraft.server.MinecraftServer.getServer().shutdownThread); // Paper - Fix issues with detecting main thread properly, the only time Watchdog will be used is during a crash shutdown which is a "try our best" scenario
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}
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// Paper start
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diff --git a/src/main/java/org/bukkit/craftbukkit/Main.java b/src/main/java/org/bukkit/craftbukkit/Main.java
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index c519ceca6f7788ca7c5d74ad1001dbc09f62681c..c288b89bf5a22269823ba1d18af217032d7c6a36 100644
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--- a/src/main/java/org/bukkit/craftbukkit/Main.java
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+++ b/src/main/java/org/bukkit/craftbukkit/Main.java
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@@ -12,6 +12,8 @@ import java.util.logging.Level;
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import java.util.logging.Logger;
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import joptsimple.OptionParser;
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import joptsimple.OptionSet;
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+import net.minecraft.util.ExceptionCollector;
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+import net.minecraft.world.level.lighting.LayerLightEventListener;
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import net.minecrell.terminalconsole.TerminalConsoleAppender; // Paper
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public class Main {
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@@ -156,6 +158,36 @@ public class Main {
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OptionSet options = null;
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+ // Paper start - preload logger classes to avoid plugins mixing versions
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+ tryPreloadClass("com.destroystokyo.paper.log.LogFullPolicy");
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+ tryPreloadClass("org.apache.logging.log4j.core.Core");
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+ tryPreloadClass("org.apache.logging.log4j.core.Appender");
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+ tryPreloadClass("org.apache.logging.log4j.core.ContextDataInjector");
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+ tryPreloadClass("org.apache.logging.log4j.core.Filter");
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+ tryPreloadClass("org.apache.logging.log4j.core.ErrorHandler");
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+ tryPreloadClass("org.apache.logging.log4j.core.LogEvent");
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+ tryPreloadClass("org.apache.logging.log4j.core.Logger");
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+ tryPreloadClass("org.apache.logging.log4j.core.LoggerContext");
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+ tryPreloadClass("org.apache.logging.log4j.core.LogEventListener");
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+ tryPreloadClass("org.apache.logging.log4j.core.AbstractLogEvent");
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+ tryPreloadClass("org.apache.logging.log4j.message.AsynchronouslyFormattable");
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+ tryPreloadClass("org.apache.logging.log4j.message.FormattedMessage");
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+ tryPreloadClass("org.apache.logging.log4j.message.ParameterizedMessage");
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+ tryPreloadClass("org.apache.logging.log4j.message.Message");
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+ tryPreloadClass("org.apache.logging.log4j.message.MessageFactory");
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+ tryPreloadClass("org.apache.logging.log4j.message.TimestampMessage");
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+ tryPreloadClass("org.apache.logging.log4j.message.SimpleMessage");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.AsyncLogger");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.AsyncLoggerContext");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.AsyncQueueFullPolicy");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.AsyncLoggerDisruptor");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.RingBufferLogEvent");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.DisruptorUtil");
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+ tryPreloadClass("org.apache.logging.log4j.core.async.RingBufferLogEventHandler");
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+ tryPreloadClass("org.apache.logging.log4j.core.impl.ThrowableProxy");
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+ tryPreloadClass("org.apache.logging.log4j.core.impl.ExtendedClassInfo");
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+ tryPreloadClass("org.apache.logging.log4j.core.impl.ExtendedStackTraceElement");
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+ // Paper end
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try {
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options = parser.parse(args);
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} catch (joptsimple.OptionException ex) {
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@@ -251,8 +283,64 @@ public class Main {
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} catch (Throwable t) {
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t.printStackTrace();
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}
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+ // Paper start
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+ // load some required classes to avoid errors during shutdown if jar is replaced
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+ // also to guarantee our version loads over plugins
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+ tryPreloadClass("com.destroystokyo.paper.util.SneakyThrow");
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+ tryPreloadClass("com.google.common.collect.Iterators$PeekingImpl");
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+ tryPreloadClass("com.google.common.collect.MapMakerInternalMap$Values");
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+ tryPreloadClass("com.google.common.collect.MapMakerInternalMap$ValueIterator");
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+ tryPreloadClass("com.google.common.collect.MapMakerInternalMap$WriteThroughEntry");
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+ tryPreloadClass("com.google.common.collect.Iterables");
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+ for (int i = 1; i <= 15; i++) {
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+ tryPreloadClass("com.google.common.collect.Iterables$" + i, false);
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+ }
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+ tryPreloadClass("org.apache.commons.lang3.mutable.MutableBoolean");
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+ tryPreloadClass("org.apache.commons.lang3.mutable.MutableInt");
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+ tryPreloadClass("org.jline.terminal.impl.MouseSupport");
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+ tryPreloadClass("org.jline.terminal.impl.MouseSupport$1");
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+ tryPreloadClass("org.jline.terminal.Terminal$MouseTracking");
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+ tryPreloadClass("co.aikar.timings.TimingHistory");
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+ tryPreloadClass("co.aikar.timings.TimingHistory$MinuteReport");
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+ tryPreloadClass("io.netty.channel.AbstractChannelHandlerContext");
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+ tryPreloadClass("io.netty.channel.AbstractChannelHandlerContext$11");
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+ tryPreloadClass("io.netty.channel.AbstractChannelHandlerContext$12");
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+ tryPreloadClass("io.netty.channel.AbstractChannel$AbstractUnsafe$8");
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+ tryPreloadClass("io.netty.util.concurrent.DefaultPromise");
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+ tryPreloadClass("io.netty.util.concurrent.DefaultPromise$1");
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+ tryPreloadClass("io.netty.util.internal.PromiseNotificationUtil");
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+ tryPreloadClass("io.netty.util.internal.SystemPropertyUtil");
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+ tryPreloadClass("org.bukkit.craftbukkit.scheduler.CraftScheduler");
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+ tryPreloadClass("org.bukkit.craftbukkit.scheduler.CraftScheduler$1");
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+ tryPreloadClass("org.bukkit.craftbukkit.scheduler.CraftScheduler$2");
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+ tryPreloadClass("org.bukkit.craftbukkit.scheduler.CraftScheduler$3");
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+ tryPreloadClass("org.bukkit.craftbukkit.scheduler.CraftScheduler$4");
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+ tryPreloadClass("org.slf4j.helpers.MessageFormatter");
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+ tryPreloadClass("org.slf4j.helpers.FormattingTuple");
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+ tryPreloadClass("org.slf4j.helpers.BasicMarker");
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+ tryPreloadClass("org.slf4j.helpers.Util");
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+ tryPreloadClass("com.destroystokyo.paper.event.player.PlayerConnectionCloseEvent");
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+ tryPreloadClass("com.destroystokyo.paper.event.entity.EntityRemoveFromWorldEvent");
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+ // Minecraft, seen during saving
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+ tryPreloadClass(LayerLightEventListener.DummyLightLayerEventListener.class.getName());
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+ tryPreloadClass(LayerLightEventListener.class.getName());
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+ tryPreloadClass(ExceptionCollector.class.getName());
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+ // Paper end
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+ }
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+ }
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+
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+ // Paper start
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+ private static void tryPreloadClass(String className) {
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+ tryPreloadClass(className, true);
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+ }
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+ private static void tryPreloadClass(String className, boolean printError) {
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+ try {
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+ Class.forName(className);
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+ } catch (ClassNotFoundException e) {
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+ if (printError) System.err.println("An expected class " + className + " was not found for preloading: " + e.getMessage());
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}
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}
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+ // Paper end
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private static List<String> asList(String... params) {
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return Arrays.asList(params);
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diff --git a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
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index 449e99d1b673870ed6892f6ab2c715a2db35c35d..c7ed6e0f8a989cec97700df2b15198c9c481c549 100644
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--- a/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
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+++ b/src/main/java/org/bukkit/craftbukkit/util/ServerShutdownThread.java
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@@ -12,12 +12,27 @@ public class ServerShutdownThread extends Thread {
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@Override
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public void run() {
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try {
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+ // Paper start - try to shutdown on main
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+ server.safeShutdown(false, false);
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+ for (int i = 1000; i > 0 && !server.hasStopped(); i -= 100) {
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+ Thread.sleep(100);
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+ }
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+ if (server.hasStopped()) {
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+ while (!server.hasFullyShutdown) Thread.sleep(1000);
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+ return;
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+ }
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+ // Looks stalled, close async
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org.spigotmc.AsyncCatcher.enabled = false; // Spigot
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org.spigotmc.AsyncCatcher.shuttingDown = true; // Paper
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+ server.forceTicks = true;
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server.close();
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+ while (!server.hasFullyShutdown) Thread.sleep(1000);
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+ } catch (InterruptedException e) {
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+ e.printStackTrace();
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+ // Paper end
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} finally {
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try {
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- net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Use TerminalConsoleAppender
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+ //net.minecrell.terminalconsole.TerminalConsoleAppender.close(); // Paper - Move into stop
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} catch (Exception e) {
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}
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}
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diff --git a/src/main/java/org/spigotmc/RestartCommand.java b/src/main/java/org/spigotmc/RestartCommand.java
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index 6dab105cd7cc4340c031c395c0346d4731355d79..6498dc4c6630bfef1a52edf74d8574e5e4876720 100644
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--- a/src/main/java/org/spigotmc/RestartCommand.java
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+++ b/src/main/java/org/spigotmc/RestartCommand.java
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@@ -139,7 +139,7 @@ public class RestartCommand extends Command
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// Paper end
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// Paper start - copied from above and modified to return if the hook registered
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- private static boolean addShutdownHook(String restartScript)
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+ public static boolean addShutdownHook(String restartScript)
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{
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String[] split = restartScript.split( " " );
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if ( split.length > 0 && new File( split[0] ).isFile() )
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diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
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index 33a66322d253c7562ae5acbdbc6cc87f7d72a9af..26c9adf7af4328ce2d8e08568019c5b438e28b05 100644
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--- a/src/main/java/org/spigotmc/WatchdogThread.java
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+++ b/src/main/java/org/spigotmc/WatchdogThread.java
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@@ -13,6 +13,7 @@ import org.bukkit.Bukkit;
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public class WatchdogThread extends Thread
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{
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+ public static final boolean DISABLE_WATCHDOG = Boolean.getBoolean("disable.watchdog"); // Paper
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private static WatchdogThread instance;
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private long timeoutTime;
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private boolean restart;
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@@ -41,6 +42,7 @@ public class WatchdogThread extends Thread
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{
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if ( instance == null )
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{
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+ if (timeoutTime <= 0) timeoutTime = 300; // Paper
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instance = new WatchdogThread( timeoutTime * 1000L, restart );
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instance.start();
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} else
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@@ -71,12 +73,13 @@ public class WatchdogThread extends Thread
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// Paper start
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Logger log = Bukkit.getServer().getLogger();
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long currentTime = monotonicMillis();
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- if ( lastTick != 0 && timeoutTime > 0 && currentTime > lastTick + earlyWarningEvery && !Boolean.getBoolean("disable.watchdog") )
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+ MinecraftServer server = MinecraftServer.getServer();
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+ if (lastTick != 0 && timeoutTime > 0 && hasStarted && (!server.isRunning() || (currentTime > lastTick + earlyWarningEvery && !DISABLE_WATCHDOG) ))
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{
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- boolean isLongTimeout = currentTime > lastTick + timeoutTime;
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+ boolean isLongTimeout = currentTime > lastTick + timeoutTime || (!server.isRunning() && !server.hasStopped() && currentTime > lastTick + 1000);
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// Don't spam early warning dumps
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if ( !isLongTimeout && (earlyWarningEvery <= 0 || !hasStarted || currentTime < lastEarlyWarning + earlyWarningEvery || currentTime < lastTick + earlyWarningDelay)) continue;
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- if ( !isLongTimeout && MinecraftServer.getServer().hasStopped()) continue; // Don't spam early watchdog warnings during shutdown, we'll come back to this...
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+ if ( !isLongTimeout && server.hasStopped()) continue; // Don't spam early watchdog warnings during shutdown, we'll come back to this...
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lastEarlyWarning = currentTime;
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if (isLongTimeout) {
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// Paper end
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@@ -118,7 +121,7 @@ public class WatchdogThread extends Thread
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log.log( Level.SEVERE, "------------------------------" );
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log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper
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ChunkTaskManager.dumpAllChunkLoadInfo(); // Paper
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- dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log );
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+ dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( server.serverThread.getId(), Integer.MAX_VALUE ), log );
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log.log( Level.SEVERE, "------------------------------" );
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//
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// Paper start - Only print full dump on long timeouts
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@@ -139,9 +142,25 @@ public class WatchdogThread extends Thread
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if ( isLongTimeout )
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{
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- if ( restart && !MinecraftServer.getServer().hasStopped() )
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+ if ( !server.hasStopped() )
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{
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- RestartCommand.restart();
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+ AsyncCatcher.enabled = false; // Disable async catcher incase it interferes with us
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+ AsyncCatcher.shuttingDown = true;
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+ server.forceTicks = true;
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+ if (restart) {
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+ RestartCommand.addShutdownHook( SpigotConfig.restartScript );
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+ }
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+ // try one last chance to safe shutdown on main incase it 'comes back'
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+ server.abnormalExit = true;
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+ server.safeShutdown(false, restart);
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+ try {
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+ Thread.sleep(1000);
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+ } catch (InterruptedException e) {
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+ e.printStackTrace();
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+ }
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+ if (!server.hasStopped()) {
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+ server.close();
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+ }
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}
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break;
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} // Paper end
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diff --git a/src/main/resources/log4j2.xml b/src/main/resources/log4j2.xml
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index 476f4a5cbe664ddd05474cb88553018bd334a5b8..8af159abd3d0cc94cf155fec5b384c42f69551bf 100644
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--- a/src/main/resources/log4j2.xml
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+++ b/src/main/resources/log4j2.xml
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@@ -1,5 +1,5 @@
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<?xml version="1.0" encoding="UTF-8"?>
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-<Configuration status="WARN" packages="com.mojang.util">
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+<Configuration status="WARN" packages="com.mojang.util" shutdownHook="disable">
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<Appenders>
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<Queue name="ServerGuiConsole">
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<PatternLayout pattern="[%d{HH:mm:ss} %level]: %msg%n" />
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