PaperMC/Spigot-Server-Patches/0326-Detect-and-repair-corrupt-Region-Files.patch
Aikar 459987d69f
More improvements to activation range, improve turtles
improved the water code so that immunity wont trigger if the entity
has the water pathfinder system active, so this improves support
for all entities that know how to behave in water.

Merged 2 EAR patches together, and removed an MCUtil method that
doesnt have a purpose anymore
2018-10-04 23:18:46 -04:00

41 lines
1.8 KiB
Diff

From 14f3b79eeeb01949a87e9f9aa252de8d471ca5c1 Mon Sep 17 00:00:00 2001
From: Aikar <aikar@aikar.co>
Date: Sat, 11 Aug 2018 00:49:20 -0400
Subject: [PATCH] Detect and repair corrupt Region Files
If the file has partial data written but not the full 8192 bytes,
then the server will be unable to load that region file...
I don't know why mojang only checks for 4096, when anything less than 8192 is a crash.
But to be safe, it will attempt to back up the file.
diff --git a/src/main/java/net/minecraft/server/RegionFile.java b/src/main/java/net/minecraft/server/RegionFile.java
index 5d2853b9ce..c35974aa7c 100644
--- a/src/main/java/net/minecraft/server/RegionFile.java
+++ b/src/main/java/net/minecraft/server/RegionFile.java
@@ -40,7 +40,20 @@ public class RegionFile {
}
this.c = new RandomAccessFile(file1, "rw");
- if (this.c.length() < 4096L) {
+ // Paper start - detect and fix incomplete headers
+ long length = this.c.length();
+ if (length < 8192 && length > 0) {
+ File corrupt = new File(file1.getParentFile(), file1.getName() + ".bak");
+ org.apache.logging.log4j.Logger logger = org.apache.logging.log4j.LogManager.getLogger();
+ logger.error("Region file " + file1 + " was incomplete. Backing up to " + corrupt + " and repairing");
+ try {
+ java.nio.file.Files.copy(file1.toPath(), corrupt.toPath());
+ } catch (IOException e) {
+ logger.error("Error backing up corrupt file", e);
+ }
+ }
+ if (length < 8192L) {
+ // Paper end
this.c.write(a);
this.c.write(a);
this.g += 8192;
--
2.19.0