63 lines
2.9 KiB
Diff
63 lines
2.9 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 d7023cb0974f6c28a0fb8a0a6e5a6600fe30d3e3..11dbe48c8a8c29cd28d725c43505e326a6e626ff 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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@@ -945,6 +945,7 @@ 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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if (this.getConnection() != null) {
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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 4d6a6583af73a25b5f2783ba56a63b8c9987c0a4..94670ec4de01341822f6affe0fa1c9774dd6131b 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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@@ -937,6 +937,35 @@ 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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+ String author = "<NoAuthorGiven>";
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+ if (plugin.getDescription().getAuthors().size() > 0) {
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+ author = plugin.getDescription().getAuthors().get(0);
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+ }
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+ getLogger().log(Level.SEVERE, String.format(
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+ "Nag author: '%s' of '%s' about the following: %s",
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+ author,
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+ plugin.getDescription().getName(),
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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(console);
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