From 8517d58673682a153961cc03b64580a1992732d5 Mon Sep 17 00:00:00 2001
From: Andrew Steinborn <git@steinborn.me>
Date: Sat, 27 Apr 2019 20:37:26 -0400
Subject: [PATCH] Reduce erroneous DNS lookups for Velocity in Kubernetes.

---
 .../proxy/network/ConnectionManager.java              | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java b/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
index 520a09f13..fb0a66236 100644
--- a/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
+++ b/proxy/src/main/java/com/velocitypowered/proxy/network/ConnectionManager.java
@@ -11,8 +11,8 @@ import io.netty.channel.ChannelFutureListener;
 import io.netty.channel.ChannelOption;
 import io.netty.channel.EventLoopGroup;
 import io.netty.channel.WriteBufferWaterMark;
-import io.netty.resolver.dns.DefaultDnsServerAddressStreamProvider;
 import io.netty.resolver.dns.DnsAddressResolverGroup;
+import io.netty.resolver.dns.DnsNameResolverBuilder;
 import java.net.InetSocketAddress;
 import java.util.HashMap;
 import java.util.Map;
@@ -48,8 +48,13 @@ public final class ConnectionManager {
     this.workerGroup = this.transportType.createEventLoopGroup(TransportType.Type.WORKER);
     this.serverChannelInitializer = new ServerChannelInitializerHolder(
         new ServerChannelInitializer(this.server));
-    this.resolverGroup = new DnsAddressResolverGroup(this.transportType.datagramChannelClass,
-        DefaultDnsServerAddressStreamProvider.INSTANCE);
+    this.resolverGroup = new DnsAddressResolverGroup(
+        new DnsNameResolverBuilder()
+            .channelType(this.transportType.datagramChannelClass)
+            .ttl(300, 86400)
+            .negativeTtl(15)
+            .ndots(1)
+    );
   }
 
   public void logChannelInformation() {