mirror of
https://github.com/PaperMC/Paper.git
synced 2024-12-01 04:31:58 +01:00
f4e3b4e439
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: 5b680f0b Note maximum objective score length in documentation CraftBukkit Changes:5932f8a7Load default world spawn areas in consistent order3a5dc78fFix confusing migration message appearing on fresh server516a408fRemove redundant CraftBukkit change for secondary world data73a2c749Process conversation input on the main thread.100c3f07Cap Objective Score Length6e842759Cross World Entity Teleportation7deba1c6Check for blank OfflinePlayer Namesf2746a5eDescriptive kick reasons instead of Nope!b0212308Cap Channel Registrationsa610dcd8Identify CraftScheduler threads with useful names Spigot Changes: 19c3c5a5 Rebuild patches
186 lines
9.2 KiB
Diff
186 lines
9.2 KiB
Diff
From 778ab79ec584b375233848669b420c2cf97a1d43 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 a92914576..f3f2a0b69 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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@@ -333,6 +334,14 @@ 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 c562ba546..e993b4da6 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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@@ -792,6 +792,7 @@ public abstract class MinecraftServer implements IAsyncTaskHandler, IMojangStati
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this.a(this.m);
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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, wait, 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 20c78e207..5372e9d54 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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@@ -750,6 +750,7 @@ 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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@@ -855,6 +856,7 @@ 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 9c442dee2..fb09fb097 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 ed5f46bf6..9dba9510f 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 +63,17 @@ 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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+ 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 +103,46 @@ 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!):" );
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dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().primaryThread.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 )
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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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--
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2.20.1
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