spigot/CraftBukkit-Patches/0059-Improve-AutoSave-Mechanism.patch
2017-03-15 20:52:45 +11:00

87 lines
4 KiB
Diff

From eb176553bd35ac55905234ed570350f8a6567350 Mon Sep 17 00:00:00 2001
From: md_5 <git@md-5.net>
Date: Sun, 12 Jan 2014 21:07:18 +1100
Subject: [PATCH] Improve AutoSave Mechanism
The problem here is that MinecraftServer.save(..), will attempt to sleep whilst all pending chunks are written to disk.
however due to various and complicated bugs, it will wait for an incorrect amount of chunks, which may cause it to sleep for an overly long amount of time.
Instead we will mimic the save-all command in its behaviour, which is both safe and performant.
Also, only save modified chunks, or chunks with entities after 4 auto save passes
diff --git a/src/main/java/net/minecraft/server/Chunk.java b/src/main/java/net/minecraft/server/Chunk.java
index 39c61e1..3df2d37 100644
--- a/src/main/java/net/minecraft/server/Chunk.java
+++ b/src/main/java/net/minecraft/server/Chunk.java
@@ -882,7 +882,7 @@ public class Chunk {
if (this.t && this.world.getTime() != this.lastSaved || this.s) {
return true;
}
- } else if (this.t && this.world.getTime() >= this.lastSaved + 600L) {
+ } else if (this.t && this.world.getTime() >= this.lastSaved + MinecraftServer.getServer().autosavePeriod * 4) { // Spigot - Only save if we've passed 2 auto save intervals without modification
return true;
}
diff --git a/src/main/java/net/minecraft/server/ChunkProviderServer.java b/src/main/java/net/minecraft/server/ChunkProviderServer.java
index ea7c10f..b39937f 100644
--- a/src/main/java/net/minecraft/server/ChunkProviderServer.java
+++ b/src/main/java/net/minecraft/server/ChunkProviderServer.java
@@ -232,7 +232,7 @@ public class ChunkProviderServer implements IChunkProvider {
this.saveChunk(chunk);
chunk.f(false);
++i;
- if (i == 24 && !flag) {
+ if (i == 24 && !flag && false) { // Spigot
return false;
}
}
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 10aba2a..cd217a5 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -675,7 +675,17 @@ public abstract class MinecraftServer implements Runnable, ICommandListener, IAs
SpigotTimings.worldSaveTimer.startTiming(); // Spigot
this.methodProfiler.a("save");
this.v.savePlayers();
- this.saveChunks(true);
+ // Spigot Start
+ // We replace this with saving each individual world as this.saveChunks(...) is broken,
+ // and causes the main thread to sleep for random amounts of time depending on chunk activity
+ // Also pass flag to only save modified chunks
+ server.playerCommandState = true;
+ for (World world : worlds) {
+ world.getWorld().save(false);
+ }
+ server.playerCommandState = false;
+ // this.saveChunks(true);
+ // Spigot End
this.methodProfiler.b();
SpigotTimings.worldSaveTimer.stopTiming(); // Spigot
}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
index e1dd8a3..50d8948 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftWorld.java
@@ -735,12 +735,17 @@ public class CraftWorld implements World {
}
public void save() {
+ // Spigot start
+ save(true);
+ }
+ public void save(boolean forceSave) {
+ // Spigot end
this.server.checkSaveState();
try {
boolean oldSave = world.savingDisabled;
world.savingDisabled = false;
- world.save(true, null);
+ world.save(forceSave, null); // Spigot
world.savingDisabled = oldSave;
} catch (ExceptionWorldConflict ex) {
--
2.9.3