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9df2066642
Upstream has released updates that appear 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: dfe1fb48 PR-906: Add missing MinecraftExperimental annotation to Bundles 825ab30d PR-905: Add missing MapCursor.Type and update documentation e03d10e6 PR-903: Make BARRIER Waterlogged 1961ead6 PR-898: Use Java Consumer instead of Bukkit Consumer CraftBukkit Changes: f71a799f0 Make BARRIER Waterlogged 172f76a45 Upgrade specialsource-maven-plugin f0702775c SPIGOT-7486: Alternate approach to null profile names 069495671 SPIGOT-7485: Allow air entity items since required for Vanilla logic 5dfd33dc2 SPIGOT-7484: Cancelling PlayerEditBookEvent does not update client's book contents 02d490788 PR-1250: Standardize and centralize Bukkit / Minecraft registry conversion 9024a09b9 PR-1251: Use Java Consumer instead of Bukkit Consumer 6d4b25bf1 Increase diff stability
160 lines
9.9 KiB
Diff
160 lines
9.9 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/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
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index 52f5c91d71a8fc86d14c3c4c9e258b9cf70ad57b..41bad67b3a6b8ccdcf9467858cb7d9c0e0a03f0e 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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@@ -1029,6 +1029,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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this.status = this.buildServerStatus();
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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/net/minecraft/server/dedicated/DedicatedServer.java b/src/main/java/net/minecraft/server/dedicated/DedicatedServer.java
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index 5a3f0a6e3f663718993cf3679ffc96c4af140e4d..cdc020e1787c258ba283d86a25ab153237b0e194 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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@@ -197,6 +197,7 @@ public class DedicatedServer extends MinecraftServer implements ServerInterface
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// Paper start
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paperConfigurations.initializeGlobalConfiguration();
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paperConfigurations.initializeWorldDefaultsConfiguration();
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+ org.spigotmc.WatchdogThread.doStart(org.spigotmc.SpigotConfig.timeoutTime, org.spigotmc.SpigotConfig.restartOnCrash);
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io.papermc.paper.command.PaperCommands.registerCommands(this);
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com.destroystokyo.paper.Metrics.PaperMetrics.startMetrics();
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com.destroystokyo.paper.VersionHistoryManager.INSTANCE.getClass(); // load version history now
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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 b0f76a563d640360b73cb1779eae74fbf552f54e..c5a59f5f94ded049d39b1e1ffac1a71f4c5b9535 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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@@ -917,6 +917,7 @@ 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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this.reloadCount++;
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this.configuration = YamlConfiguration.loadConfiguration(this.getConfigFile());
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this.commandsConfiguration = YamlConfiguration.loadConfiguration(this.getCommandsConfigFile());
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@@ -1006,6 +1007,7 @@ public final class CraftServer implements Server {
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this.enablePlugins(PluginLoadOrder.STARTUP);
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this.enablePlugins(PluginLoadOrder.POSTWORLD);
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this.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 ddc5f2d9aa7dda6aff132392927e3d7e3674dbff..3ac48dafe2300ff4cf4591569fec9ce4916503cd 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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@@ -229,7 +229,7 @@ public class SpigotConfig
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SpigotConfig.restartScript = SpigotConfig.getString( "settings.restart-script", SpigotConfig.restartScript );
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SpigotConfig.restartMessage = SpigotConfig.transform( SpigotConfig.getString( "messages.restart", "Server is restarting" ) );
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SpigotConfig.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 after paper config initialization
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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 a9897c494b3dc56d900356d74030359832febbaa..b47d043144c499b1499f6b4be5a16a3f75c9fcb8 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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@@ -14,6 +14,10 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
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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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+ 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 volatile long lastTick;
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private volatile boolean stopping;
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@@ -22,6 +26,8 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
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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(io.papermc.paper.configuration.GlobalConfiguration.get().watchdog.earlyWarningEvery, timeoutTime); // Paper
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+ earlyWarningDelay = Math.min(io.papermc.paper.configuration.GlobalConfiguration.get().watchdog.earlyWarningDelay, timeoutTime); // Paper
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}
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private static long monotonicMillis()
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@@ -61,9 +67,18 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
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while ( !this.stopping )
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{
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//
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- if ( this.lastTick != 0 && this.timeoutTime > 0 && WatchdogThread.monotonicMillis() > this.lastTick + this.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 = WatchdogThread.monotonicMillis();
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+ if ( this.lastTick != 0 && this.timeoutTime > 0 && currentTime > this.lastTick + this.earlyWarningEvery && !Boolean.getBoolean("disable.watchdog")) // Paper - Add property to disable
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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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@@ -93,30 +108,46 @@ public final class WatchdogThread extends io.papermc.paper.util.TickThread // Pa
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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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io.papermc.paper.chunk.system.scheduling.ChunkTaskScheduler.dumpAllChunkLoadInfo(isLongTimeout); // Paper // Paper - rewrite chunk system
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WatchdogThread.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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WatchdogThread.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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log.log( Level.SEVERE, "------------------------------" );
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+ if ( isLongTimeout )
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+ {
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if ( this.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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