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Shutdown L4J cordially if the server stops before it's even started (#11172)

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primarily, this allows us to ensure that appenders are flushed, console, log files
before the JVM exits to avoid issues such as error messages disappearing
This commit is contained in:
Shane Freeder 2024-07-29 16:10:53 +01:00
parent e9a408f93f
commit c2b2de43cf
1 changed files with 52 additions and 0 deletions
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52
patches/server/Improved-Watchdog-Support.patch
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@ -58,6 +58,38 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
// Many servers tend to restart at a fixed time at xx:00 which causes an uneven distribution of requests on the
// bStats backend. To circumvent this problem, we introduce some randomness into the initial and second delay.
diff --git a/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
new file mode 100644
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000
--- /dev/null
+++ b/src/main/java/io/papermc/paper/util/LogManagerShutdownThread.java
@@ -0,0 +0,0 @@
+package io.papermc.paper.util;
+
+public class LogManagerShutdownThread extends Thread {
+
+ static LogManagerShutdownThread INSTANCE = new LogManagerShutdownThread();
+ public static final void hook() {
+ if (INSTANCE == null) {
+ throw new IllegalStateException("Cannot re-hook after being unhooked");
+ }
+ Runtime.getRuntime().addShutdownHook(INSTANCE);
+ }
+
+ public static final void unhook() {
+ Runtime.getRuntime().removeShutdownHook(INSTANCE);
+ INSTANCE = null;
+ }
+
+ private LogManagerShutdownThread() {
+ super("Log4j2 Shutdown Thread");
+ }
+
+ @Override
+ public void run() {
+ org.apache.logging.log4j.LogManager.shutdown();
+ }
+}
diff --git a/src/main/java/net/minecraft/CrashReport.java b/src/main/java/net/minecraft/CrashReport.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/CrashReport.java
@ -70,6 +102,18 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
while (cause instanceof CompletionException && cause.getCause() != null) {
cause = cause.getCause();
}
diff --git a/src/main/java/net/minecraft/server/Main.java b/src/main/java/net/minecraft/server/Main.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/Main.java
+++ b/src/main/java/net/minecraft/server/Main.java
@@ -0,0 +0,0 @@ public class Main {
@DontObfuscate
public static void main(final OptionSet optionset) { // CraftBukkit - replaces main(String[] astring)
+ io.papermc.paper.util.LogManagerShutdownThread.hook(); // Paper
SharedConstants.tryDetectVersion();
/* CraftBukkit start - Replace everything
OptionParser optionparser = new OptionParser();
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 0000000000000000000000000000000000000000..0000000000000000000000000000000000000000 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
@ -93,6 +137,14 @@ index 0000000000000000000000000000000000000000..00000000000000000000000000000000
public static <S extends MinecraftServer> S spin(Function<Thread, S> serverFactory) {
AtomicReference<S> atomicreference = new AtomicReference();
Thread thread = new ca.spottedleaf.moonrise.common.util.TickThread(() -> { // Paper - rewrite chunk system
@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
*/
// Paper end
+ io.papermc.paper.util.LogManagerShutdownThread.unhook(); // Paper
Runtime.getRuntime().addShutdownHook(new org.bukkit.craftbukkit.util.ServerShutdownThread(this));
// CraftBukkit end
this.paperConfigurations = services.paperConfigurations(); // Paper - add paper configuration files
@@ -0,0 +0,0 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
// CraftBukkit start
private boolean hasStopped = false;