Paper/patches/server/0863-Fix-save-problems-on-shutdown.patch
2022-06-10 16:15:38 +02:00

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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Spottedleaf <Spottedleaf@users.noreply.github.com>
Date: Sat, 5 Mar 2022 17:12:52 -0800
Subject: [PATCH] Fix save problems on shutdown
- Save level.dat first, in case the shutdown is killed later
- Force run minecraftserver tasks and the chunk source tasks
while waiting for the chunk system to empty, as there's simply
too much trash that could prevent them from executing during
the chunk source tick (i.e "time left in tick" logic).
- Set forceTicks to true, so that player packets are always
processed so that the main process queue can be drained
diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 1bc400cf245ba3110e8874a4f2837a91d0f70916..60de49a9888b6dfe17dcb0d9dd0dd3d2e7d829aa 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -953,6 +953,13 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
}
+ // Paper start - let's be a little more intelligent around crashes
+ // make sure level.dat saves
+ for (ServerLevel level : this.getAllLevels()) {
+ level.saveLevelDat();
+ }
+ // Paper end - let's be a little more intelligent around crashes
+
while (this.levels.values().stream().anyMatch((worldserver1) -> {
return worldserver1.getChunkSource().chunkMap.hasWork();
})) {
@@ -965,9 +972,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
worldserver.getChunkSource().tick(() -> {
return true;
}, false);
+ while (worldserver.getChunkSource().pollTask()); // Paper - drain tasks
}
- this.waitUntilNextTick();
+ this.forceTicks = true; // Paper
+ while (this.pollTask()); // Paper - drain tasks
}
this.saveAllChunks(false, true, false);
@@ -1264,6 +1273,11 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
}
private boolean haveTime() {
+ // Paper start
+ if (this.forceTicks) {
+ return true;
+ }
+ // Paper end
// CraftBukkit start
if (isOversleep) return canOversleep();// Paper - because of our changes, this logic is broken
return this.forceTicks || this.runningTask() || Util.getMillis() < (this.mayHaveDelayedTasks ? this.delayedTasksMaxNextTickTime : this.nextTickTime);
diff --git a/src/main/java/net/minecraft/server/level/ServerLevel.java b/src/main/java/net/minecraft/server/level/ServerLevel.java
index cf3622930aab7ff62e293622ab1cd5ff97ee68f5..de0fe1743dbddc6ff548dc4c658955266600180f 100644
--- a/src/main/java/net/minecraft/server/level/ServerLevel.java
+++ b/src/main/java/net/minecraft/server/level/ServerLevel.java
@@ -1278,7 +1278,13 @@ public class ServerLevel extends Level implements WorldGenLevel {
}
}
+ // Paper start
+ this.saveLevelDat();
+ }
+ public void saveLevelDat() {
+ this.saveLevelData();
+ // Paper end
// CraftBukkit start - moved from MinecraftServer.saveChunks
ServerLevel worldserver1 = this;