diff --git a/modules/transport-netty4/src/main/java/org/elasticsearch/http/netty4/Netty4HttpServerTransport.java b/modules/transport-netty4/src/main/java/org/elasticsearch/http/netty4/Netty4HttpServerTransport.java
index a9f42f564b396..204010bd9f123 100644
--- a/modules/transport-netty4/src/main/java/org/elasticsearch/http/netty4/Netty4HttpServerTransport.java
+++ b/modules/transport-netty4/src/main/java/org/elasticsearch/http/netty4/Netty4HttpServerTransport.java
@@ -22,7 +22,6 @@
 import com.carrotsearch.hppc.IntHashSet;
 import com.carrotsearch.hppc.IntSet;
 import io.netty.bootstrap.ServerBootstrap;
-import io.netty.channel.AdaptiveRecvByteBufAllocator;
 import io.netty.channel.Channel;
 import io.netty.channel.ChannelFuture;
 import io.netty.channel.ChannelHandler;
@@ -88,7 +87,6 @@
 import java.util.regex.Pattern;
 
 import static org.elasticsearch.common.settings.Setting.boolSetting;
-import static org.elasticsearch.common.settings.Setting.byteSizeSetting;
 import static org.elasticsearch.common.util.concurrent.EsExecutors.daemonThreadFactory;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_CORS_ALLOW_CREDENTIALS;
 import static org.elasticsearch.http.HttpTransportSettings.SETTING_CORS_ALLOW_HEADERS;
@@ -138,10 +136,6 @@ public class Netty4HttpServerTransport extends AbstractLifecycleComponent implem
         Setting.byteSizeSetting("http.tcp.receive_buffer_size", NetworkService.TCP_RECEIVE_BUFFER_SIZE, Property.NodeScope);
     public static final Setting<ByteSizeValue> SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_SIZE =
         Setting.byteSizeSetting("http.netty.receive_predictor_size", new ByteSizeValue(64, ByteSizeUnit.KB), Property.NodeScope);
-    public static final Setting<ByteSizeValue> SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MIN =
-        byteSizeSetting("http.netty.receive_predictor_min", SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_SIZE, Property.NodeScope);
-    public static final Setting<ByteSizeValue> SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MAX =
-        byteSizeSetting("http.netty.receive_predictor_max", SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_SIZE, Property.NodeScope);
 
 
     protected final NetworkService networkService;
@@ -233,17 +227,8 @@ public Netty4HttpServerTransport(Settings settings, NetworkService networkServic
         this.tcpReceiveBufferSize = SETTING_HTTP_TCP_RECEIVE_BUFFER_SIZE.get(settings);
         this.detailedErrorsEnabled = SETTING_HTTP_DETAILED_ERRORS_ENABLED.get(settings);
 
-        // See AdaptiveReceiveBufferSizePredictor#DEFAULT_XXX for default values in netty..., we can use higher ones for us, even fixed one
-        ByteSizeValue receivePredictorMin = SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MIN.get(settings);
-        ByteSizeValue receivePredictorMax = SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MAX.get(settings);
-        if (receivePredictorMax.getBytes() == receivePredictorMin.getBytes()) {
-            recvByteBufAllocator = new FixedRecvByteBufAllocator(Math.toIntExact(receivePredictorMax.getBytes()));
-        } else {
-            recvByteBufAllocator = new AdaptiveRecvByteBufAllocator(
-                Math.toIntExact(receivePredictorMin.getBytes()),
-                Math.toIntExact(receivePredictorMin.getBytes()),
-                Math.toIntExact(receivePredictorMax.getBytes()));
-        }
+        ByteSizeValue receivePredictor = SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_SIZE.get(settings);
+        recvByteBufAllocator = new FixedRecvByteBufAllocator(receivePredictor.bytesAsInt());
 
         this.compression = SETTING_HTTP_COMPRESSION.get(settings);
         this.compressionLevel = SETTING_HTTP_COMPRESSION_LEVEL.get(settings);
@@ -259,9 +244,8 @@ public Netty4HttpServerTransport(Settings settings, NetworkService networkServic
         this.maxContentLength = maxContentLength;
 
         logger.debug("using max_chunk_size[{}], max_header_size[{}], max_initial_line_length[{}], max_content_length[{}], " +
-                "receive_predictor[{}->{}], pipelining[{}], pipelining_max_events[{}]",
-            maxChunkSize, maxHeaderSize, maxInitialLineLength, this.maxContentLength,
-            receivePredictorMin, receivePredictorMax, pipelining, pipeliningMaxEvents);
+                "receive_predictor[{}], pipelining[{}], pipelining_max_events[{}]",
+            maxChunkSize, maxHeaderSize, maxInitialLineLength, this.maxContentLength, receivePredictor, pipelining, pipeliningMaxEvents);
     }
 
     public Settings settings() {
diff --git a/modules/transport-netty4/src/main/java/org/elasticsearch/transport/Netty4Plugin.java b/modules/transport-netty4/src/main/java/org/elasticsearch/transport/Netty4Plugin.java
index 61d818c0d323a..de43df2d57f43 100644
--- a/modules/transport-netty4/src/main/java/org/elasticsearch/transport/Netty4Plugin.java
+++ b/modules/transport-netty4/src/main/java/org/elasticsearch/transport/Netty4Plugin.java
@@ -61,8 +61,6 @@ public List<Setting<?>> getSettings() {
             Netty4HttpServerTransport.SETTING_HTTP_TCP_SEND_BUFFER_SIZE,
             Netty4HttpServerTransport.SETTING_HTTP_TCP_RECEIVE_BUFFER_SIZE,
             Netty4HttpServerTransport.SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_SIZE,
-            Netty4HttpServerTransport.SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MIN,
-            Netty4HttpServerTransport.SETTING_HTTP_NETTY_RECEIVE_PREDICTOR_MAX,
             Netty4Transport.WORKER_COUNT,
             Netty4Transport.NETTY_RECEIVE_PREDICTOR_SIZE,
             Netty4Transport.NETTY_RECEIVE_PREDICTOR_MIN,