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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sun, 10 May 2020 22:16:17 -0400
Subject: [PATCH] Wait for Async Tasks during shutdown
Server.reload() had this logic to give time for tasks to shutdown,
however shutdown did not...
Adds a 5 second grace period for any async tasks to finish and warns
if any are still running after that delay just as reload does.
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
2023-03-27 19:19:23 +02:00
index e189de6d2aa94e9bbb20f1477ee2e34431adb324..4a58843f7ce2dd9e50f9daf3065d056a28910e5a 100644
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--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
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@@ -932,6 +932,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// CraftBukkit start
if (this.server != null) {
this.server.disablePlugins();
+ this.server.waitForAsyncTasksShutdown(); // Paper
}
// CraftBukkit end
if (this.getConnection() != null) {
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
2023-06-01 01:36:57 +02:00
index 164c137ee1cbfa540ec6ce85bfadab4d34e0c038..e2fd9a4fc9b0879416fe70aa5352327d3a901a4a 100644
2021-06-11 14:02:28 +02:00
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
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@@ -1005,6 +1005,31 @@ public final class CraftServer implements Server {
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org.spigotmc.WatchdogThread.hasStarted = true; // Paper - Disable watchdog early timeout on reload
}
+ // Paper start
+ public void waitForAsyncTasksShutdown() {
+ int pollCount = 0;
+
+ // Wait for at most 5 seconds for plugins to close their threads
+ while (pollCount < 10*5 && getScheduler().getActiveWorkers().size() > 0) {
+ try {
+ Thread.sleep(100);
+ } catch (InterruptedException e) {}
+ pollCount++;
+ }
+
+ List<BukkitWorker> overdueWorkers = getScheduler().getActiveWorkers();
+ for (BukkitWorker worker : overdueWorkers) {
+ Plugin plugin = worker.getOwner();
+ getLogger().log(Level.SEVERE, String.format(
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+ "Nag author(s): '%s' of '%s' about the following: %s",
+ plugin.getPluginMeta().getAuthors(),
+ plugin.getPluginMeta().getDisplayName(),
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+ "This plugin is not properly shutting down its async tasks when it is being shut down. This task may throw errors during the final shutdown logs and might not complete before process dies."
+ ));
+ }
+ }
+ // Paper end
+
@Override
public void reloadData() {
ReloadCommand.reload(console);