Increase max gossip compressed size

CHANGELOG.md

@@ -13,4 +13,4 @@
 ### Bug Fixes
 - Updated the gas change check for block building so that warnings only get raised if the change is off spec.
 - Fixed an issue with the `/eth/v1/config/spec` API not returning all previously included configuration parameters.
-
+- Increase the maximum size of a compressed message for libp2p to ensure uncompressed blocks can grow to max size.

networking/p2p/src/main/java/tech/pegasys/teku/networking/p2p/libp2p/config/LibP2PParamsFactory.java

@@ -68,8 +68,10 @@ private static void addGossipParamsDValues(
 
   private static void addGossipParamsMaxValues(
       final NetworkingSpecConfig networkingSpecConfig, final GossipParamsBuilder builder) {
+    final int gossipMaxSize = networkingSpecConfig.getGossipMaxSize();
+    final int compressedMaxGossipSize = 32 + gossipMaxSize + (gossipMaxSize / 6);
     builder
-        .maxGossipMessageSize(networkingSpecConfig.getGossipMaxSize())
+        .maxGossipMessageSize(compressedMaxGossipSize)
         .maxPublishedMessages(1000)
         .maxTopicsPerPublishedMessage(1)
         .maxSubscriptions(MAX_SUBSCRIPTIONS_PER_MESSAGE)

networking/p2p/src/test/java/tech/pegasys/teku/networking/p2p/libp2p/config/LibP2PParamsFactoryTest.java

@@ -43,7 +43,7 @@ void createGossipParams_checkZeroDsSucceed() {
   public void createGossipParams_setGossipMaxSizeFromNetworkSpecConfig() {
     final GossipConfig gossipConfig = GossipConfig.builder().build();
     final NetworkingSpecConfig networkingSpecConfig = spy(spec.getNetworkingConfig());
-    final int expectedGossipMaxSize = networkingSpecConfig.getGossipMaxSize();
+    final int expectedGossipMaxSize = 12233418;
     reset(networkingSpecConfig);
 
     final GossipParams gossipParams =