mirror of
https://github.com/PaperMC/Paper.git
synced 2024-07-06 19:54:47 +02:00
70ce6ce831
This makes it easier for downstream projects (forks) to replace the version fetching system with their own. It is as simple as implementing an interface and overriding the default implementation of org.bukkit.UnsafeValues#getVersionFetcher() It also makes it easier for us to organize things like the version history feature. Lastly I have updated the paper implementation to check against the site API rather than against jenkins.
187 lines
9.2 KiB
Diff
187 lines
9.2 KiB
Diff
From 328ceba36730635c7fc487f90944d51dae4dc398 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 d773ef5b0..833659bbb 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 7e27f1079..3f2a3dd17 100644
|
|
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
|
|
@@ -847,6 +847,7 @@ 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 ad1950980..824d1cb49 100644
|
|
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
|
|
@@ -754,6 +754,7 @@ 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());
|
|
@@ -852,6 +853,7 @@ 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 6c5430ff9..4b8581f0e 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 9532aada8..a1d93200e 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();
|
|
--
|
|
2.21.0
|
|
|