70 lines
3.5 KiB
Diff
70 lines
3.5 KiB
Diff
From 17fb64da01acd903a06fc671490a5f378e9b2d99 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/PlayerConnection.java b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
index a92bf8967..d0ab87d0f 100644
|
|
--- a/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
+++ b/src/main/java/net/minecraft/server/PlayerConnection.java
|
|
@@ -100,6 +100,7 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
|
|
private int receivedMovePackets;
|
|
private int processedMovePackets;
|
|
private AutoRecipe H = new AutoRecipe();
|
|
+ private static final long KEEPALIVE_LIMIT = Long.getLong("paper.playerconnection.keepalive", 30) * 1000; // Paper - provide property to set keepalive limit
|
|
|
|
public PlayerConnection(MinecraftServer minecraftserver, NetworkManager networkmanager, EntityPlayer entityplayer) {
|
|
this.minecraftServer = minecraftserver;
|
|
@@ -179,18 +180,25 @@ public class PlayerConnection implements PacketListenerPlayIn, ITickable {
|
|
}
|
|
|
|
this.minecraftServer.methodProfiler.a("keepAlive");
|
|
- long i = this.d();
|
|
-
|
|
- if (i - this.f >= 25000L) { // CraftBukkit
|
|
- if (this.g) {
|
|
- this.disconnect(new ChatMessage("disconnect.timeout", new Object[0]));
|
|
- } else {
|
|
- this.g = true;
|
|
- this.f = i;
|
|
- this.h = i;
|
|
- this.sendPacket(new PacketPlayOutKeepAlive(this.h));
|
|
+ // 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 = this.getCurrentMillis();
|
|
+ long elapsedTime = currentTime - this.getLastPing();
|
|
+ if (this.isPendingPing()) {
|
|
+ // We're pending a ping from the client
|
|
+ if (!this.processedDisconnect && elapsedTime >= KEEPALIVE_LIMIT) { // check keepalive limit, don't fire if already disconnected
|
|
+ PlayerConnection.LOGGER.warn("{} was kicked due to keepalive timeout!", this.player.getName()); // more info
|
|
+ this.disconnect(new ChatMessage("disconnect.timeout"));
|
|
+ }
|
|
+ } else {
|
|
+ if (elapsedTime >= 15000L) { // 15 seconds
|
|
+ this.setPendingPing(true);
|
|
+ this.setLastPing(currentTime);
|
|
+ this.setKeepAliveID(currentTime);
|
|
+ this.sendPacket(new PacketPlayOutKeepAlive(this.getKeepAliveID()));
|
|
}
|
|
}
|
|
+ // Paper end
|
|
|
|
this.minecraftServer.methodProfiler.b();
|
|
// CraftBukkit start
|
|
--
|
|
2.16.1
|
|
|