From 95dfd8902ffe673d170d5b3218d53c23b7c292f2 Mon Sep 17 00:00:00 2001 From: md_5 Date: Sat, 23 Feb 2013 12:33:20 +1100 Subject: [PATCH] Watchdog Thread. --- .../java/net/minecraft/server/MinecraftServer.java | 2 + src/main/java/org/bukkit/craftbukkit/Spigot.java | 123 +++++++++++++++++---- src/main/java/org/spigotmc/RestartCommand.java | 23 ++++ src/main/java/org/spigotmc/WatchdogThread.java | 93 ++++++++++++++++ src/main/resources/configurations/bukkit.yml | 3 + 5 files changed, 222 insertions(+), 22 deletions(-) create mode 100644 src/main/java/org/spigotmc/RestartCommand.java create mode 100644 src/main/java/org/spigotmc/WatchdogThread.java diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java index 4010cbf..168394f 100644 --- a/src/main/java/net/minecraft/server/MinecraftServer.java +++ b/src/main/java/net/minecraft/server/MinecraftServer.java @@ -401,6 +401,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo this.q(); SpigotTimings.serverTickTimer.stopTiming(); org.bukkit.CustomTimingsHandler.tick(); + org.spigotmc.WatchdogThread.tick(); } // Spigot end } else { @@ -428,6 +429,7 @@ public abstract class MinecraftServer implements ICommandListener, Runnable, IMo this.a(crashreport); } finally { try { + org.spigotmc.WatchdogThread.doStop(); this.stop(); this.isStopped = true; } catch (Throwable throwable1) { diff --git a/src/main/java/org/bukkit/craftbukkit/Spigot.java b/src/main/java/org/bukkit/craftbukkit/Spigot.java index b00c885..d445c2e 100644 --- a/src/main/java/org/bukkit/craftbukkit/Spigot.java +++ b/src/main/java/org/bukkit/craftbukkit/Spigot.java @@ -1,5 +1,6 @@ package org.bukkit.craftbukkit; +import java.io.File; import java.io.IOException; import java.util.ArrayList; import net.minecraft.server.*; @@ -8,21 +9,24 @@ import org.bukkit.configuration.file.YamlConfiguration; import java.util.List; import java.util.logging.Level; -import java.util.logging.Logger; +import net.minecraft.server.EntityPlayer; import org.bukkit.Bukkit; import org.spigotmc.Metrics; +import org.spigotmc.RestartCommand; +import org.spigotmc.WatchdogThread; public class Spigot { - static AxisAlignedBB maxBB = AxisAlignedBB.a(0,0,0,0,0,0); - static AxisAlignedBB miscBB = AxisAlignedBB.a(0,0,0,0,0,0); - static AxisAlignedBB animalBB = AxisAlignedBB.a(0,0,0,0,0,0); - static AxisAlignedBB monsterBB = AxisAlignedBB.a(0,0,0,0,0,0); + static AxisAlignedBB maxBB = AxisAlignedBB.a(0, 0, 0, 0, 0, 0); + static AxisAlignedBB miscBB = AxisAlignedBB.a(0, 0, 0, 0, 0, 0); + static AxisAlignedBB animalBB = AxisAlignedBB.a(0, 0, 0, 0, 0, 0); + static AxisAlignedBB monsterBB = AxisAlignedBB.a(0, 0, 0, 0, 0, 0); public static boolean tabPing = false; private static Metrics metrics; public static void initialize(CraftServer server, SimpleCommandMap commandMap, YamlConfiguration configuration) { commandMap.register("bukkit", new org.bukkit.craftbukkit.command.TicksPerSecondCommand("tps")); + commandMap.register("restart", new RestartCommand("restart")); server.whitelistMessage = configuration.getString("settings.whitelist-message", server.whitelistMessage); server.stopMessage = configuration.getString("settings.stop-message", server.stopMessage); @@ -31,13 +35,24 @@ public class Spigot { server.commandComplete = configuration.getBoolean("settings.command-complete", true); server.spamGuardExclusions = configuration.getStringList("settings.spam-exclusions"); + int configVersion = configuration.getInt("config-version"); + switch (configVersion) { + case 0: + configuration.set("settings.timeout-time", 30); + case 1: + configuration.set("settings.timeout-time", 60); + } + configuration.set("config-version", 2); + + WatchdogThread.doStart(configuration.getInt("settings.timeout-time", 60), configuration.getBoolean("settings.restart-on-crash", false)); + server.orebfuscatorEnabled = configuration.getBoolean("orebfuscator.enable", false); server.orebfuscatorEngineMode = configuration.getInt("orebfuscator.engine-mode", 1); server.orebfuscatorUpdateRadius = configuration.getInt("orebfuscator.update-radius", 2); server.orebfuscatorDisabledWorlds = configuration.getStringList("orebfuscator.disabled-worlds"); server.orebfuscatorBlocks = configuration.getShortList("orebfuscator.blocks"); if (server.orebfuscatorEngineMode != 1 && server.orebfuscatorEngineMode != 2) { - server.orebfuscatorEngineMode = 1; + server.orebfuscatorEngineMode = 1; } if (server.chunkGCPeriod == 0) { @@ -59,6 +74,7 @@ public class Spigot { /** * Initializes an entities type on construction to specify what group this * entity is in for activation ranges. + * * @param entity * @return group id */ @@ -80,21 +96,20 @@ public class Spigot { * @return boolean If it should always tick. */ public static boolean initializeEntityActivationState(Entity entity, CraftWorld world) { - if ( (entity.activationType == 3 && world.miscEntityActivationRange == 0) - || (entity.activationType == 2 && world.animalEntityActivationRange == 0) - || (entity.activationType == 1 && world.monsterEntityActivationRange == 0) - || entity instanceof EntityHuman - || entity instanceof EntityItemFrame - || entity instanceof EntityProjectile - || entity instanceof EntityEnderDragon - || entity instanceof EntityComplexPart - || entity instanceof EntityWither - || entity instanceof EntityFireball - || entity instanceof EntityWeather - || entity instanceof EntityTNTPrimed - || entity instanceof EntityEnderCrystal - || entity instanceof EntityFireworks - ) { + if ((entity.activationType == 3 && world.miscEntityActivationRange == 0) + || (entity.activationType == 2 && world.animalEntityActivationRange == 0) + || (entity.activationType == 1 && world.monsterEntityActivationRange == 0) + || entity instanceof EntityHuman + || entity instanceof EntityItemFrame + || entity instanceof EntityProjectile + || entity instanceof EntityEnderDragon + || entity instanceof EntityComplexPart + || entity instanceof EntityWither + || entity instanceof EntityFireball + || entity instanceof EntityWeather + || entity instanceof EntityTNTPrimed + || entity instanceof EntityEnderCrystal + || entity instanceof EntityFireworks) { return true; } @@ -104,6 +119,7 @@ public class Spigot { /** * Utility method to grow an AABB without creating a new AABB or touching * the pool, so we can re-use ones we have. + * * @param target * @param source * @param x @@ -122,6 +138,7 @@ public class Spigot { /** * Find what entities are in range of the players in the world and set * active if in range. + * * @param world */ public static void activateEntities(World world) { @@ -160,6 +177,7 @@ public class Spigot { /** * Checks for the activation state of all entities in this chunk. + * * @param chunk */ private static void activateChunkEntities(Chunk chunk) { @@ -195,6 +213,7 @@ public class Spigot { /** * If an entity is not in range, do some more checks to see if we should * give it a shot. + * * @param entity * @return */ @@ -205,7 +224,7 @@ public class Spigot { } if (!(entity instanceof EntityArrow)) { if (!entity.onGround || entity.passenger != null - || entity.vehicle != null) { + || entity.vehicle != null) { return true; } } else if (!((EntityArrow) entity).inGround) { @@ -235,6 +254,7 @@ public class Spigot { /** * Checks if the entity is active for this tick. + * * @param entity * @return */ @@ -265,4 +285,63 @@ public class Spigot { SpigotTimings.checkIfActiveTimer.stopTiming(); return isActive; } + + public static void restart() { + try { + String startupScript = MinecraftServer.getServer().server.configuration.getString("settings.restart-script-location", ""); + final File file = new File(startupScript); + if (file.isFile()) { + System.out.println("Attempting to restart with " + startupScript); + + // Kick all players + for (EntityPlayer p : (List< EntityPlayer>) MinecraftServer.getServer().getPlayerList().players) { + p.playerConnection.disconnect("Server is restarting"); + } + // Give the socket a chance to send the packets + try { + Thread.sleep(100); + } catch (InterruptedException ex) { + } + // Close the socket so we can rebind with the new process + MinecraftServer.getServer().ae().a(); + + // Give time for it to kick in + try { + Thread.sleep(100); + } catch (InterruptedException ex) { + } + + // Actually shutdown + try { + MinecraftServer.getServer().stop(); + } catch (Throwable t) { + } + + // This will be done AFTER the server has completely halted + Thread shutdownHook = new Thread() { + @Override + public void run() { + try { + String os = System.getProperty("os.name").toLowerCase(); + if (os.contains("win")) { + Runtime.getRuntime().exec("cmd /c start " + file.getPath()); + } else { + Runtime.getRuntime().exec(new String[]{"sh", file.getPath()}); + } + } catch (Exception e) { + e.printStackTrace(); + } + } + }; + + shutdownHook.setDaemon(true); + Runtime.getRuntime().addShutdownHook(shutdownHook); + } else { + System.out.println("Startup script '" + startupScript + "' does not exist! Stopping server."); + } + System.exit(0); + } catch (Exception ex) { + ex.printStackTrace(); + } + } } diff --git a/src/main/java/org/spigotmc/RestartCommand.java b/src/main/java/org/spigotmc/RestartCommand.java new file mode 100644 index 0000000..2d5c89f --- /dev/null +++ b/src/main/java/org/spigotmc/RestartCommand.java @@ -0,0 +1,23 @@ +package org.spigotmc; + +import org.bukkit.command.Command; +import org.bukkit.command.CommandSender; +import org.bukkit.craftbukkit.Spigot; + +public class RestartCommand extends Command { + + public RestartCommand(String name) { + super(name); + this.description = "Restarts the server"; + this.usageMessage = "/restart"; + this.setPermission("bukkit.command.restart"); + } + + @Override + public boolean execute(CommandSender sender, String currentAlias, String[] args) { + if (testPermission(sender)) { + Spigot.restart(); + } + return true; + } +} diff --git a/src/main/java/org/spigotmc/WatchdogThread.java b/src/main/java/org/spigotmc/WatchdogThread.java new file mode 100644 index 0000000..10390b8 --- /dev/null +++ b/src/main/java/org/spigotmc/WatchdogThread.java @@ -0,0 +1,93 @@ +package org.spigotmc; + +import java.lang.management.ManagementFactory; +import java.lang.management.MonitorInfo; +import java.lang.management.ThreadInfo; +import java.util.logging.Level; +import java.util.logging.Logger; +import org.bukkit.Bukkit; +import org.bukkit.craftbukkit.Spigot; + +public class WatchdogThread extends Thread { + + private static WatchdogThread instance; + private final long timeoutTime; + private final boolean restart; + private volatile long lastTick; + private volatile boolean stopping; + + private WatchdogThread(long timeoutTime, boolean restart) { + super("Spigot Watchdog Thread"); + this.timeoutTime = timeoutTime; + this.restart = restart; + } + + public static void doStart(int timeoutTime, boolean restart) { + if (instance == null) { + instance = new WatchdogThread(timeoutTime * 1000L, restart); + instance.start(); + } + } + + public static void tick() { + instance.lastTick = System.currentTimeMillis(); + } + + public static void doStop() { + if (instance != null) { + instance.stopping = true; + } + } + + @Override + public void run() { + while (!stopping) { + // + if (lastTick != 0 && System.currentTimeMillis() > lastTick + timeoutTime) { + Logger log = Bukkit.getServer().getLogger(); + log.log(Level.SEVERE, "The server has stopped responding!"); + log.log(Level.SEVERE, "Please report this to http://www.spigotmc.org/"); + log.log(Level.SEVERE, "Be sure to include ALL relevant console errors and Minecraft crash reports"); + log.log(Level.SEVERE, "Spigot version: " + Bukkit.getServer().getVersion()); + // + log.log(Level.SEVERE, "Current Thread State:"); + ThreadInfo[] threads = ManagementFactory.getThreadMXBean().dumpAllThreads(true, true); + for (ThreadInfo thread : threads) { + if (thread.getThreadState() != State.WAITING) { + log.log(Level.SEVERE, "------------------------------"); + // + log.log(Level.SEVERE, "Current Thread: " + thread.getThreadName()); + log.log(Level.SEVERE, "\tPID: " + thread.getThreadId() + + " | Suspended: " + thread.isSuspended() + + " | Native: " + thread.isInNative() + + " | State: " + thread.getThreadState()); + if (thread.getLockedMonitors().length != 0) { + log.log(Level.SEVERE, "\tThread is waiting on monitor(s):"); + for (MonitorInfo monitor : thread.getLockedMonitors()) { + log.log(Level.SEVERE, "\t\tLocked on:" + monitor.getLockedStackFrame()); + } + } + log.log(Level.SEVERE, "\tStack:"); + // + StackTraceElement[] stack = thread.getStackTrace(); + for (int line = 0; line < stack.length; line++) { + log.log(Level.SEVERE, "\t\t" + stack[line].toString()); + } + } + } + log.log(Level.SEVERE, "------------------------------"); + + if (restart) { + Spigot.restart(); + } + break; + } + + try { + sleep(10000); + } catch (InterruptedException ex) { + interrupt(); + } + } + } +} diff --git a/src/main/resources/configurations/bukkit.yml b/src/main/resources/configurations/bukkit.yml index 5822e41..a62ba24 100644 --- a/src/main/resources/configurations/bukkit.yml +++ b/src/main/resources/configurations/bukkit.yml @@ -31,6 +31,9 @@ settings: command-complete: true spam-exclusions: - /skill + timeout-time: 30 + restart-on-crash: false + restart-script-location: /path/to/server/start.sh world-settings: default: growth-chunks-per-tick: 650 -- 1.8.1-rc2