mirror of
https://github.com/PaperMC/Paper.git
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Upstream has released updates that appears to apply and compile correctly. This update has not been tested by PaperMC and as with ANY update, please do your own testing Bukkit Changes: f009c3dd SPIGOT-5810, SPIGOT-5835: 'Better' handling of Player.isOnGround e677c370 Update ECJ version 5058a35d SPIGOT-5860: Item.setItemStack should be NotNull CraftBukkit Changes:d77f4d9b
SPIGOT-5810, SPIGOT-5835: 'Better' handling of Player.isOnGround53c95627
SPIGOT-5865: Piglin does not trigger EntityPickupItemEvent2ab04d24
Update ECJ version7884e079
SPIGOT-5868: Blocks do not tick in custom nether / end2a848286
SPIGOT-5863: Don't check colour in scoreboard length validationf2cbce30
SPIGOT-5866: Beehive unknown TargetReason Spigot Changes: ad703da0 SPIGOT-5870: /plugins "website" field shows "version" 1a27cfd8 #98: Improve output of /plugins command using text components 732d5bab Disable checkstyle in Spigot blocks 0199a9a6 #97: Add Memory Usage to Ticks Per Second Command. 33ea98fc SPIGOT-5858: NPE: Joining the server with an invalid dimension
185 lines
9.7 KiB
Diff
185 lines
9.7 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: miclebrick <miclebrick@outlook.com>
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Date: Wed, 8 Aug 2018 15:30:52 -0400
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Subject: [PATCH] Add Early Warning Feature to WatchDog
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Detect when the server has been hung for a long duration, and start printing
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thread dumps at an interval until the point of crash.
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This will help diagnose what was going on in that time before the crash.
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diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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index 2e5c71d6b7d120a308076d95a3d5b73c5aca8bc9..1b21911c3e4fd1d4a3305176bb8477c370256906 100644
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--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
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+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
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@@ -25,6 +25,7 @@ import org.bukkit.configuration.file.YamlConfiguration;
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import co.aikar.timings.Timings;
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import co.aikar.timings.TimingsManager;
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import org.spigotmc.SpigotConfig;
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+import org.spigotmc.WatchdogThread;
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public class PaperConfig {
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@@ -289,6 +290,14 @@ public class PaperConfig {
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}
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}
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+ public static int watchdogPrintEarlyWarningEvery = 5000;
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+ public static int watchdogPrintEarlyWarningDelay = 10000;
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+ private static void watchdogEarlyWarning() {
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+ watchdogPrintEarlyWarningEvery = getInt("settings.watchdog.early-warning-every", 5000);
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+ watchdogPrintEarlyWarningDelay = getInt("settings.watchdog.early-warning-delay", 10000);
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+ WatchdogThread.doStart(SpigotConfig.timeoutTime, SpigotConfig.restartOnCrash );
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+ }
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+
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public static int tabSpamIncrement = 1;
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public static int tabSpamLimit = 500;
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private static void tabSpamLimiters() {
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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 30d04825b8a65e0af66f3591ee6baaa433893b54..3a7e2d1b2a11edbf430333bb8f4788c073dcf18e 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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@@ -899,6 +899,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
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this.a(this.serverPing);
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// Spigot start
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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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lastTick = start - TICK_TIME; // Paper
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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 03ab59bceca94ab23278b8f531ccdcc6a85da799..6aba97153123084f99088f10ccfc16ae8e3a0639 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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@@ -803,6 +803,7 @@ public final class CraftServer implements Server {
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@Override
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public void reload() {
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+ org.spigotmc.WatchdogThread.hasStarted = false; // Paper - Disable watchdog early timeout on reload
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reloadCount++;
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configuration = YamlConfiguration.loadConfiguration(getConfigFile());
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commandsConfiguration = YamlConfiguration.loadConfiguration(getCommandsConfigFile());
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@@ -921,6 +922,7 @@ public final class CraftServer implements Server {
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enablePlugins(PluginLoadOrder.STARTUP);
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enablePlugins(PluginLoadOrder.POSTWORLD);
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getPluginManager().callEvent(new ServerLoadEvent(ServerLoadEvent.LoadType.RELOAD));
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+ org.spigotmc.WatchdogThread.hasStarted = true; // Paper - Disable watchdog early timeout on reload
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}
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@Override
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diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
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index 1cf214eaca80feae283f6524605976022f856116..e66050b87ace6544636e10123ad0963176e5fdf7 100644
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--- a/src/main/java/org/spigotmc/SpigotConfig.java
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+++ b/src/main/java/org/spigotmc/SpigotConfig.java
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@@ -225,7 +225,7 @@ public class SpigotConfig
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restartScript = getString( "settings.restart-script", restartScript );
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restartMessage = transform( getString( "messages.restart", "Server is restarting" ) );
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commands.put( "restart", new RestartCommand( "restart" ) );
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- WatchdogThread.doStart( timeoutTime, restartOnCrash );
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+ //WatchdogThread.doStart( timeoutTime, restartOnCrash ); // Paper - moved to PaperConfig
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}
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public static boolean bungee;
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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 121c7ff60195f9904b8afb3a305e97bbcb80a738..07936eeba2a1aa68d52f4183f663ce362c816a54 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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@@ -5,6 +5,7 @@ import java.lang.management.MonitorInfo;
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import java.lang.management.ThreadInfo;
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import java.util.logging.Level;
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import java.util.logging.Logger;
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+import com.destroystokyo.paper.PaperConfig;
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import net.minecraft.server.MinecraftServer;
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import org.bukkit.Bukkit;
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@@ -13,6 +14,10 @@ public class WatchdogThread extends Thread
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private static WatchdogThread instance;
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private final long timeoutTime;
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+ private final long earlyWarningEvery; // Paper - Timeout time for just printing a dump but not restarting
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+ private final long earlyWarningDelay; // Paper
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+ public static volatile boolean hasStarted; // Paper
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+ private long lastEarlyWarning; // Paper - Keep track of short dump times to avoid spamming console with short dumps
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private final boolean restart;
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private volatile long lastTick;
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private volatile boolean stopping;
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@@ -22,6 +27,8 @@ public class WatchdogThread extends Thread
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super( "Paper Watchdog Thread" );
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this.timeoutTime = timeoutTime;
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this.restart = restart;
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+ earlyWarningEvery = Math.min(PaperConfig.watchdogPrintEarlyWarningEvery, timeoutTime); // Paper
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+ earlyWarningDelay = Math.min(PaperConfig.watchdogPrintEarlyWarningDelay, timeoutTime); // Paper
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}
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private static long monotonicMillis()
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@@ -56,10 +63,18 @@ public class WatchdogThread extends Thread
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{
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while ( !stopping )
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{
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- //
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- if ( lastTick != 0 && monotonicMillis() > lastTick + timeoutTime && !Boolean.getBoolean("disable.watchdog")) // Paper - Add property to disable
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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 && currentTime > lastTick + earlyWarningEvery && !Boolean.getBoolean("disable.watchdog") )
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{
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- Logger log = Bukkit.getServer().getLogger();
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+ boolean isLongTimeout = currentTime > lastTick + timeoutTime;
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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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+ lastEarlyWarning = currentTime;
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+ if (isLongTimeout) {
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+ // Paper end
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log.log( Level.SEVERE, "------------------------------" );
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log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Paper bug." ); // Paper
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log.log( Level.SEVERE, "If you see a plugin in the Server thread dump below, then please report it to that author" );
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@@ -89,29 +104,46 @@ public class WatchdogThread extends Thread
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}
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}
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// Paper end
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+ } else
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+ {
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+ log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH - " + Bukkit.getServer().getVersion() + " ---");
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+ log.log(Level.SEVERE, "The server has not responded for " + (currentTime - lastTick) / 1000 + " seconds! Creating thread dump");
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+ }
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+ // Paper end - Different message for short timeout
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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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dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().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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+ if ( isLongTimeout )
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+ {
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log.log( Level.SEVERE, "Entire Thread Dump:" );
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ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads( true, true );
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for ( ThreadInfo thread : threads )
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{
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dumpThread( thread, log );
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}
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+ } else {
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+ log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH ---");
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+ }
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+
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+
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log.log( Level.SEVERE, "------------------------------" );
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+ if ( isLongTimeout )
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+ {
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if ( restart && !MinecraftServer.getServer().hasStopped() )
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{
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RestartCommand.restart();
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}
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break;
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+ } // Paper end
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}
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try
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{
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- sleep( 10000 );
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+ sleep( 1000 ); // Paper - Reduce check time to every second instead of every ten seconds, more consistent and allows for short timeout
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} catch ( InterruptedException ex )
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{
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interrupt();
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