Paper/patches/server/0158-revert-serverside-behavior-of-keepalives.patch
Nassim Jahnke d385af0e01
Updated Upstream (Bukkit/CraftBukkit)
Upstream has released updates that appear to apply and compile correctly.
This update has not been tested by PaperMC and as with ANY update, please do your own testing

Bukkit Changes:
0a4b84d6 SPIGOT-7003: Add missing PlayerAnimationType
830db7d5 SPIGOT-5984: Add non deprecated / magic value way to set pixel in MapCanvas
20caf8ff PR-754: Add DamageCause.SONIC_BOOM

CraftBukkit Changes:
576a03704 SPIGOT-7003: Add missing PlayerAnimationType
0dcc5fdd0 SPIGOT-5984: Add non deprecated / magic value way to set pixel in MapCanvas
d75aacb43 Update Netty version
3b34c6bea SPIGOT-7044: Modified RandomSourceWrapper to ensure random is not null before setting seed
4b60bfd18 PR-1059: Add DamageCause.SONIC_BOOM
2022-06-09 13:55:33 +02:00

74 lines
4.1 KiB
Diff

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Shane Freeder <theboyetronic@gmail.com>
Date: Sun, 15 Oct 2017 00:29:07 +0100
Subject: [PATCH] revert serverside behavior of keepalives
This patch intends to bump up the time that a client has to reply to the
server back to 30 seconds as per pre 1.12.2, which allowed clients
more than enough time to reply potentially allowing them to be less
tempermental due to lag spikes on the network thread, e.g. that caused
by plugins that are interacting with netty.
We also add a system property to allow people to tweak how long the server
will wait for a reply. There is a compromise here between lower and higher
values, lower values will mean that dead connections can be closed sooner,
whereas higher values will make this less sensitive to issues such as spikes
from networking or during connections flood of chunk packets on slower clients,
at the cost of dead connections being kept open for longer.
diff --git a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
index 32c59e612519323c8ee1956a1a893354913d1fda..71e52f71ac06f66696f5ae9b79ab490c7389927f 100644
--- a/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
+++ b/src/main/java/net/minecraft/server/network/ServerGamePacketListenerImpl.java
@@ -240,7 +240,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
public ServerPlayer player;
private int tickCount;
private int ackBlockChangesUpTo = -1;
- private long keepAliveTime;
+ private long keepAliveTime = Util.getMillis();
private boolean keepAlivePending;
private long keepAliveChallenge;
// CraftBukkit start - multithreaded fields
@@ -273,6 +273,7 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
private int knownMovePacketCount;
private final ChatPreviewThrottler chatPreviewThrottler = new ChatPreviewThrottler();
private final AtomicReference<Instant> lastChatTimeStamp;
+ private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
public ServerGamePacketListenerImpl(MinecraftServer server, Connection connection, ServerPlayer player) {
this.lastChatTimeStamp = new AtomicReference(Instant.EPOCH);
@@ -360,18 +361,25 @@ public class ServerGamePacketListenerImpl implements ServerPlayerConnection, Ser
}
this.server.getProfiler().push("keepAlive");
- long i = Util.getMillis();
-
- if (i - this.keepAliveTime >= 25000L) { // CraftBukkit
- if (this.keepAlivePending) {
- this.disconnect(Component.translatable("disconnect.timeout"));
- } else {
+ // Paper Start - give clients a longer time to respond to pings as per pre 1.12.2 timings
+ // This should effectively place the keepalive handling back to "as it was" before 1.12.2
+ long currentTime = Util.getMillis();
+ long elapsedTime = currentTime - this.keepAliveTime;
+
+ if (this.keepAlivePending) {
+ if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
+ ServerGamePacketListenerImpl.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getScoreboardName()); // more info
+ this.disconnect(Component.translatable("disconnect.timeout", new Object[0]));
+ }
+ } else {
+ if (elapsedTime >= 15000L) { // 15 seconds
this.keepAlivePending = true;
- this.keepAliveTime = i;
- this.keepAliveChallenge = i;
+ this.keepAliveTime = currentTime;
+ this.keepAliveChallenge = currentTime;
this.send(new ClientboundKeepAlivePacket(this.keepAliveChallenge));
}
}
+ // Paper end
this.server.getProfiler().pop();
// CraftBukkit start