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Paper/Spigot-Server-Patches/0280-Add-Early-Warning-Feature-to-WatchDog.patch
Shane Freeder 276afaa2ea
Updated Upstream (Bukkit/CraftBukkit/Spigot) 
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:
c2d72c82 SPIGOT-3102: Add EXPLOSION SpawnReason

CraftBukkit Changes:
fca41573 SPIGOT-5136: EntityPortalEvent getting called on interdimensional entity teleports
604c8bf0 SPIGOT-3102: Add EXPLOSION SpawnReason
375969a6 Re-add chunk GC for plugin chunk loads
58151368 SPIGOT-5123: Snapshot tile entities can end up with a non-null world
491c8482 SPIGOT-5130: PersistentDataContainer not removing values on TileEntities

Spigot Changes:
d05d3c1f Rebuild patches
2019-07-05 03:13:38 +01:00

187 Zeilen
9.2 KiB
Diff
Originalformat Blame Verlauf

From f9e21fd4b2937c80e0fc254517495108d4e0425c Mon Sep 17 00:00:00 2001
From: miclebrick <miclebrick@outlook.com>
Date: Wed, 8 Aug 2018 15:30:52 -0400
Subject: [PATCH] Add Early Warning Feature to WatchDog
Detect when the server has been hung for a long duration, and start printing
thread dumps at an interval until the point of crash.
This will help diagnose what was going on in that time before the crash.
diff --git a/src/main/java/com/destroystokyo/paper/PaperConfig.java b/src/main/java/com/destroystokyo/paper/PaperConfig.java
index 207e5d3e23..a13c8c68b6 100644
--- a/src/main/java/com/destroystokyo/paper/PaperConfig.java
+++ b/src/main/java/com/destroystokyo/paper/PaperConfig.java
@@ -25,6 +25,7 @@ import org.bukkit.configuration.file.YamlConfiguration;
import co.aikar.timings.Timings;
import co.aikar.timings.TimingsManager;
import org.spigotmc.SpigotConfig;
+import org.spigotmc.WatchdogThread;
public class PaperConfig {
@@ -312,6 +313,14 @@ public class PaperConfig {
}
}
+ public static int watchdogPrintEarlyWarningEvery = 5000;
+ public static int watchdogPrintEarlyWarningDelay = 10000;
+ private static void watchdogEarlyWarning() {
+ watchdogPrintEarlyWarningEvery = getInt("settings.watchdog.early-warning-every", 5000);
+ watchdogPrintEarlyWarningDelay = getInt("settings.watchdog.early-warning-delay", 10000);
+ WatchdogThread.doStart(SpigotConfig.timeoutTime, SpigotConfig.restartOnCrash );
+ }
+
public static int tabSpamIncrement = 1;
public static int tabSpamLimit = 500;
private static void tabSpamLimiters() {
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 946803e2be..fe8647bbc6 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -850,6 +850,7 @@ public abstract class MinecraftServer extends IAsyncTaskHandlerReentrant<TickTas
this.a(this.serverPing);
// Spigot start
+ org.spigotmc.WatchdogThread.hasStarted = true; // Paper
Arrays.fill( recentTps, 20 );
long start = System.nanoTime(), curTime, tickSection = start; // Paper - Further improve server tick loop
lastTick = start - TICK_TIME; // Paper
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 26de8263dd..e7ac058fc7 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -757,6 +757,7 @@ public final class CraftServer implements Server {
@Override
public void reload() {
+ org.spigotmc.WatchdogThread.hasStarted = false; // Paper - Disable watchdog early timeout on reload
reloadCount++;
configuration = YamlConfiguration.loadConfiguration(getConfigFile());
commandsConfiguration = YamlConfiguration.loadConfiguration(getCommandsConfigFile());
@@ -857,6 +858,7 @@ public final class CraftServer implements Server {
enablePlugins(PluginLoadOrder.STARTUP);
enablePlugins(PluginLoadOrder.POSTWORLD);
getPluginManager().callEvent(new ServerLoadEvent(ServerLoadEvent.LoadType.RELOAD));
+ org.spigotmc.WatchdogThread.hasStarted = true; // Paper - Disable watchdog early timeout on reload
}
@Override
diff --git a/src/main/java/org/spigotmc/SpigotConfig.java b/src/main/java/org/spigotmc/SpigotConfig.java
index 6c5430ff94..4b8581f0ed 100644
--- a/src/main/java/org/spigotmc/SpigotConfig.java
+++ b/src/main/java/org/spigotmc/SpigotConfig.java
@@ -225,7 +225,7 @@ public class SpigotConfig
restartScript = getString( "settings.restart-script", restartScript );
restartMessage = transform( getString( "messages.restart", "Server is restarting" ) );
commands.put( "restart", new RestartCommand( "restart" ) );
- WatchdogThread.doStart( timeoutTime, restartOnCrash );
+ //WatchdogThread.doStart( timeoutTime, restartOnCrash ); // Paper - moved to PaperConfig
}
public static boolean bungee;
diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java
index 9532aada82..a1d93200e6 100644
--- a/src/main/java/org/spigotmc/WatchdogThread.java
+++ b/src/main/java/org/spigotmc/WatchdogThread.java
@@ -5,6 +5,7 @@ import java.lang.management.MonitorInfo;
import java.lang.management.ThreadInfo;
import java.util.logging.Level;
import java.util.logging.Logger;
+import com.destroystokyo.paper.PaperConfig;
import net.minecraft.server.MinecraftServer;
import org.bukkit.Bukkit;
@@ -13,6 +14,10 @@ public class WatchdogThread extends Thread
private static WatchdogThread instance;
private final long timeoutTime;
+ private final long earlyWarningEvery; // Paper - Timeout time for just printing a dump but not restarting
+ private final long earlyWarningDelay; // Paper
+ public static volatile boolean hasStarted; // Paper
+ private long lastEarlyWarning; // Paper - Keep track of short dump times to avoid spamming console with short dumps
private final boolean restart;
private volatile long lastTick;
private volatile boolean stopping;
@@ -22,6 +27,8 @@ public class WatchdogThread extends Thread
super( "Paper Watchdog Thread" );
this.timeoutTime = timeoutTime;
this.restart = restart;
+ earlyWarningEvery = Math.min(PaperConfig.watchdogPrintEarlyWarningEvery, timeoutTime); // Paper
+ earlyWarningDelay = Math.min(PaperConfig.watchdogPrintEarlyWarningDelay, timeoutTime); // Paper
}
private static long monotonicMillis()
@@ -56,10 +63,17 @@ public class WatchdogThread extends Thread
{
while ( !stopping )
{
- //
- if ( lastTick != 0 && monotonicMillis() > lastTick + timeoutTime && !Boolean.getBoolean("disable.watchdog")) // Paper - Add property to disable
+ // Paper start
+ Logger log = Bukkit.getServer().getLogger();
+ long currentTime = monotonicMillis();
+ if ( lastTick != 0 && currentTime > lastTick + earlyWarningEvery && !Boolean.getBoolean("disable.watchdog") )
{
- Logger log = Bukkit.getServer().getLogger();
+ boolean isLongTimeout = currentTime > lastTick + timeoutTime;
+ // Don't spam early warning dumps
+ if ( !isLongTimeout && (earlyWarningEvery <= 0 || !hasStarted || currentTime < lastEarlyWarning + earlyWarningEvery || currentTime < lastTick + earlyWarningDelay)) continue;
+ lastEarlyWarning = currentTime;
+ if (isLongTimeout) {
+ // Paper end
log.log( Level.SEVERE, "------------------------------" );
log.log( Level.SEVERE, "The server has stopped responding! This is (probably) not a Paper bug." ); // Paper
log.log( Level.SEVERE, "If you see a plugin in the Server thread dump below, then please report it to that author" );
@@ -89,29 +103,46 @@ public class WatchdogThread extends Thread
}
}
// Paper end
+ } else
+ {
+ log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH - " + Bukkit.getServer().getVersion() + " ---");
+ log.log(Level.SEVERE, "The server has not responded for " + (currentTime - lastTick) / 1000 + " seconds! Creating thread dump");
+ }
+ // Paper end - Different message for short timeout
log.log( Level.SEVERE, "------------------------------" );
log.log( Level.SEVERE, "Server thread dump (Look for plugins here before reporting to Paper!):" ); // Paper
dumpThread( ManagementFactory.getThreadMXBean().getThreadInfo( MinecraftServer.getServer().serverThread.getId(), Integer.MAX_VALUE ), log );
log.log( Level.SEVERE, "------------------------------" );
//
+ // Paper start - Only print full dump on long timeouts
+ if ( isLongTimeout )
+ {
log.log( Level.SEVERE, "Entire Thread Dump:" );
ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads( true, true );
for ( ThreadInfo thread : threads )
{
dumpThread( thread, log );
}
+ } else {
+ log.log(Level.SEVERE, "--- DO NOT REPORT THIS TO PAPER - THIS IS NOT A BUG OR A CRASH ---");
+ }
+
+
log.log( Level.SEVERE, "------------------------------" );
+ if ( isLongTimeout )
+ {
if ( restart )
{
RestartCommand.restart();
}
break;
+ } // Paper end
}
try
{
- sleep( 10000 );
+ sleep( 1000 ); // Paper - Reduce check time to every second instead of every ten seconds, more consistent and allows for short timeout
} catch ( InterruptedException ex )
{
interrupt();
--
2.22.0
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