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01a13871de
Patch documentation to come Issues with the old system that are fixed now: - World generation does not scale with cpu cores effectively. - Relies on the main thread for scheduling and maintaining chunk state, dropping chunk load/generate rates at lower tps. - Unreliable prioritisation of chunk gen/load calls that block the main thread. - Shutdown logic is utterly unreliable, as it has to wait for all chunks to unload - is it guaranteed that the chunk system is in a state on shutdown that it can reliably do this? Watchdog shutdown also typically failed due to thread checks, which is now resolved. - Saving of data is not unified (i.e can save chunk data without saving entity data, poses problems for desync if shutdown is really abnormal. - Entities are not loaded with chunks. This caused quite a bit of headache for Chunk#getEntities API, but now the new chunk system loads entities with chunks so that they are ready whenever the chunk loads in. Effectively brings the behavior back to 1.16 era, but still storing entities in their own separate regionfiles. The above list is not complete. The patch documentation will complete it. New chunk system hard relies on starlight and dataconverter, and most importantly the new concurrent utilities in ConcurrentUtil. Some of the old async chunk i/o interface (i.e the old file io thread reroutes _some_ calls to the new file io thread) is kept for plugin compat reasons. It will be removed in the next major version of minecraft. The old legacy chunk system patches have been moved to the removed folder in case we need them again.
44 Zeilen
2.3 KiB
Diff
44 Zeilen
2.3 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Spottedleaf <Spottedleaf@users.noreply.github.com>
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Date: Mon, 13 May 2019 21:10:59 -0700
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Subject: [PATCH] Fix CraftServer#isPrimaryThread and MinecraftServer
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isMainThread
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md_5 changed it so he could shut down the server asynchronously
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from watchdog, although we have patches that prevent that type
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of behavior for this exact reason.
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md_5 also placed code in PlayerConnectionUtils that would have
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solved https://bugs.mojang.com/browse/MC-142590, making the change
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to MinecraftServer#isMainThread irrelevant.
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By reverting his change to MinecraftServer#isMainThread packet
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handling that should have been handled synchronously will be handled
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synchronously when the server gets shut down.
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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 1d554a45097cdf0640788bb796b983f18af31a9f..f7d7e69e29f217c233869951d7d3188816f8216c 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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@@ -2327,7 +2327,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
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// CraftBukkit start
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@Override
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public boolean isSameThread() {
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- return super.isSameThread() || this.isStopped(); // CraftBukkit - MC-142590
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+ return super.isSameThread() /*|| this.isStopped()*/; // CraftBukkit - MC-142590 // Paper - causes issues elsewhere
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}
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public boolean isDebugging() {
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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 fec355dfc7e6353759276f82e6677fd9607e6e7c..2d6f8032cd5a5e7542a4a1cd791852873c93657e 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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@@ -2075,7 +2075,7 @@ public final class CraftServer implements Server {
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@Override
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public boolean isPrimaryThread() {
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- return Thread.currentThread().equals(console.serverThread) || this.console.hasStopped() || !org.spigotmc.AsyncCatcher.enabled; // All bets are off if we have shut down (e.g. due to watchdog)
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+ return Thread.currentThread().equals(console.serverThread); // Paper - Fix issues with detecting main thread properly
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}
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// Paper start
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