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60 lines
2.8 KiB
Diff
60 lines
2.8 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Aikar <aikar@aikar.co>
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Date: Sun, 10 May 2020 22:16:17 -0400
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Subject: [PATCH] Wait for Async Tasks during shutdown
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Server.reload() had this logic to give time for tasks to shutdown,
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however shutdown did not...
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Adds a 5 second grace period for any async tasks to finish and warns
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if any are still running after that delay just as reload does.
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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 fdaf757cbbc90841747989add56c13f252f645e5..6b7bacb0ea667c488b09da8c2a8a685d3a86608e 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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@@ -912,6 +912,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// CraftBukkit start
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if (this.server != null) {
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this.server.disablePlugins();
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+ this.server.waitForAsyncTasksShutdown(); // Paper
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}
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// CraftBukkit end
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this.getConnection().stop();
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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 dd7305a316c72b55c74c226e2edc4d6a8a2b8d37..92a6b6e838336c086ab5fc534ec8bb2d94e3453a 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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@@ -1018,6 +1018,31 @@ public final class CraftServer implements Server {
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org.spigotmc.WatchdogThread.hasStarted = true; // Paper - Disable watchdog early timeout on reload
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}
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+ // Paper start
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+ public void waitForAsyncTasksShutdown() {
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+ int pollCount = 0;
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+
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+ // Wait for at most 5 seconds for plugins to close their threads
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+ while (pollCount < 10*5 && getScheduler().getActiveWorkers().size() > 0) {
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+ try {
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+ Thread.sleep(100);
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+ } catch (InterruptedException e) {}
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+ pollCount++;
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+ }
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+
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+ List<BukkitWorker> overdueWorkers = getScheduler().getActiveWorkers();
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+ for (BukkitWorker worker : overdueWorkers) {
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+ Plugin plugin = worker.getOwner();
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+ getLogger().log(Level.SEVERE, String.format(
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+ "Nag author(s): '%s' of '%s' about the following: %s",
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+ plugin.getPluginMeta().getAuthors(),
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+ 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."
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+ ));
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+ }
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+ }
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+ // Paper end
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+
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@Override
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public void reloadData() {
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ReloadCommand.reload(this.console);
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