[WIP][SPARK-27562][Shuffle]Complete the verification mechanism for shuffle transmitted data

common/network-common/src/main/java/org/apache/spark/network/buffer/DigestFileSegmentManagedBuffer.java

@@ -0,0 +1,50 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.network.buffer;
+
+import java.io.File;
+
+import com.google.common.base.Objects;
+
+import org.apache.spark.network.util.TransportConf;
+
+/**
+ * A {@link ManagedBuffer} backed by a segment in a file with digest.
+ */
+public final class DigestFileSegmentManagedBuffer extends FileSegmentManagedBuffer {
+
+  private final long digest;
+
+  public DigestFileSegmentManagedBuffer(TransportConf conf, File file, long offset, long length,
+    long digest) {
+    super(conf, file, offset, length);
+    this.digest = digest;
+  }
+
+  public long getDigest() { return digest; }
+
+  @Override
+  public String toString() {
+    return Objects.toStringHelper(this)
+      .add("file", getFile())
+      .add("offset", getOffset())
+      .add("length", getLength())
+      .add("digest", digest)
+      .toString();
+  }
+}

common/network-common/src/main/java/org/apache/spark/network/buffer/FileSegmentManagedBuffer.java

@@ -38,7 +38,7 @@
 /**
  * A {@link ManagedBuffer} backed by a segment in a file.
  */
-public final class FileSegmentManagedBuffer extends ManagedBuffer {
+public class FileSegmentManagedBuffer extends ManagedBuffer {
   private final TransportConf conf;
   private final File file;
   private final long offset;

common/network-common/src/main/java/org/apache/spark/network/client/ChunkReceivedCallback.java

@@ -36,6 +36,11 @@ public interface ChunkReceivedCallback {
    */
   void onSuccess(int chunkIndex, ManagedBuffer buffer);
 
+  /** Called with a extra digest parameter upon receipt of a particular chunk.*/
+  default void onSuccess(int chunkIndex, ManagedBuffer buffer, long digest) {
+    onSuccess(chunkIndex, buffer);
+  }
+
   /**
    * Called upon failure to fetch a particular chunk. Note that this may actually be called due
    * to failure to fetch a prior chunk in this stream.

common/network-common/src/main/java/org/apache/spark/network/client/StreamCallback.java

@@ -35,6 +35,11 @@ public interface StreamCallback {
   /** Called when all data from the stream has been received. */
   void onComplete(String streamId) throws IOException;
 
+  /** Called with a extra digest when all data from the stream has been received. */
+  default void onComplete(String streamId, long digest) throws IOException {
+    onComplete(streamId);
+  }
+
   /** Called if there's an error reading data from the stream. */
   void onFailure(String streamId, Throwable cause) throws IOException;
 }

common/network-common/src/main/java/org/apache/spark/network/client/StreamInterceptor.java

@@ -37,6 +37,7 @@ public class StreamInterceptor<T extends Message> implements TransportFrameDecod
   private final long byteCount;
   private final StreamCallback callback;
   private long bytesRead;
+  private long digest = -1L;
 
   public StreamInterceptor(
       MessageHandler<T> handler,
@@ -50,6 +51,16 @@ public StreamInterceptor(
     this.bytesRead = 0;
   }
 
+  public StreamInterceptor(
+      MessageHandler<T> handler,
+      String streamId,
+      long byteCount,
+      StreamCallback callback,
+      long digest) {
+    this(handler, streamId, byteCount, callback);
+    this.digest = digest;
+  }
+
   @Override
   public void exceptionCaught(Throwable cause) throws Exception {
     deactivateStream();
@@ -86,7 +97,11 @@ public boolean handle(ByteBuf buf) throws Exception {
       throw re;
     } else if (bytesRead == byteCount) {
       deactivateStream();
-      callback.onComplete(streamId);
+      if (digest < 0) {
+        callback.onComplete(streamId);
+      } else {
+        callback.onComplete(streamId, digest);
+      }
     }
 
     return bytesRead != byteCount;

common/network-common/src/main/java/org/apache/spark/network/client/TransportResponseHandler.java

@@ -33,6 +33,8 @@
 
 import org.apache.spark.network.protocol.ChunkFetchFailure;
 import org.apache.spark.network.protocol.ChunkFetchSuccess;
+import org.apache.spark.network.protocol.DigestChunkFetchSuccess;
+import org.apache.spark.network.protocol.DigestStreamResponse;
 import org.apache.spark.network.protocol.ResponseMessage;
 import org.apache.spark.network.protocol.RpcFailure;
 import org.apache.spark.network.protocol.RpcResponse;
@@ -246,6 +248,45 @@ public void handle(ResponseMessage message) throws Exception {
       } else {
         logger.warn("Stream failure with unknown callback: {}", resp.error);
       }
+    } else if (message instanceof DigestChunkFetchSuccess) {
+      DigestChunkFetchSuccess resp = (DigestChunkFetchSuccess) message;
+      ChunkReceivedCallback listener = outstandingFetches.get(resp.streamChunkId);
+      if (listener == null) {
+        logger.warn("Ignoring response for block {} from {} since it is not outstanding",
+          resp.streamChunkId, getRemoteAddress(channel));
+        resp.body().release();
+      } else {
+        outstandingFetches.remove(resp.streamChunkId);
+        listener.onSuccess(resp.streamChunkId.chunkIndex, resp.body(), resp.digest);
+        resp.body().release();
+      }
+    } else if (message instanceof DigestStreamResponse) {
+      DigestStreamResponse resp = (DigestStreamResponse) message;
+      Pair<String, StreamCallback> entry = streamCallbacks.poll();
+      if (entry != null) {
+        StreamCallback callback = entry.getValue();
+        if (resp.byteCount > 0) {
+          StreamInterceptor interceptor = new StreamInterceptor(
+            this, resp.streamId, resp.byteCount, callback, resp.digest);
+          try {
+            TransportFrameDecoder frameDecoder = (TransportFrameDecoder)
+              channel.pipeline().get(TransportFrameDecoder.HANDLER_NAME);
+            frameDecoder.setInterceptor(interceptor);
+            streamActive = true;
+          } catch (Exception e) {
+            logger.error("Error installing stream handler.", e);
+            deactivateStream();
+          }
+        } else {
+          try {
+            callback.onComplete(resp.streamId, resp.digest);
+          } catch (Exception e) {
+            logger.warn("Error in stream handler onComplete().", e);
+          }
+        }
+      } else {
+        logger.error("Could not find callback for StreamResponse.");
+      }
     } else {
       throw new IllegalStateException("Unknown response type: " + message.type());
     }

common/network-common/src/main/java/org/apache/spark/network/protocol/DigestChunkFetchSuccess.java

@@ -0,0 +1,94 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.network.protocol;
+
+import com.google.common.base.Objects;
+import io.netty.buffer.ByteBuf;
+import org.apache.spark.network.buffer.ManagedBuffer;
+import org.apache.spark.network.buffer.NettyManagedBuffer;
+
+/**
+ * Response to {@link ChunkFetchRequest} when a chunk exists with a digest and has been
+ * successfully fetched.
+ *
+ * Note that the server-side encoding of this messages does NOT include the buffer itself, as this
+ * may be written by Netty in a more efficient manner (i.e., zero-copy write).
+ * Similarly, the client-side decoding will reuse the Netty ByteBuf as the buffer.
+ */
+public final class DigestChunkFetchSuccess extends AbstractResponseMessage {
+  public final StreamChunkId streamChunkId;
+  public final long digest;
+
+  public DigestChunkFetchSuccess(StreamChunkId streamChunkId, ManagedBuffer buffer, long digest) {
+    super(buffer, true);
+    this.streamChunkId = streamChunkId;
+    this.digest = digest;
+  }
+
+  @Override
+  public Message.Type type() { return Type.DigestChunkFetchSuccess; }
+
+  @Override
+  public int encodedLength() {
+    return streamChunkId.encodedLength() + 8;
+  }
+
+  /** Encoding does NOT include 'buffer' itself. See {@link MessageEncoder}. */
+  @Override
+  public void encode(ByteBuf buf) {
+    streamChunkId.encode(buf);
+    buf.writeLong(digest);
+  }
+
+  @Override
+  public ResponseMessage createFailureResponse(String error) {
+    return new ChunkFetchFailure(streamChunkId, error);
+  }
+
+  /** Decoding uses the given ByteBuf as our data, and will retain() it. */
+  public static DigestChunkFetchSuccess decode(ByteBuf buf) {
+    StreamChunkId streamChunkId = StreamChunkId.decode(buf);
+    long digest = buf.readLong();
+    buf.retain();
+    NettyManagedBuffer managedBuf = new NettyManagedBuffer(buf.duplicate());
+    return new DigestChunkFetchSuccess(streamChunkId, managedBuf, digest);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hashCode(streamChunkId, body(), digest);
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other instanceof DigestChunkFetchSuccess) {
+      DigestChunkFetchSuccess o = (DigestChunkFetchSuccess) other;
+      return streamChunkId.equals(o.streamChunkId) && super.equals(o) && digest == o.digest;
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return Objects.toStringHelper(this)
+      .add("streamChunkId", streamChunkId)
+      .add("digest", digest)
+      .add("buffer", body())
+      .toString();
+  }
+}

common/network-common/src/main/java/org/apache/spark/network/protocol/DigestStreamResponse.java

@@ -0,0 +1,95 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.spark.network.protocol;
+
+import com.google.common.base.Objects;
+import io.netty.buffer.ByteBuf;
+import org.apache.spark.network.buffer.ManagedBuffer;
+
+/**
+ * Response to {@link StreamRequest} with digest when the stream has been successfully opened.
+ * <p>
+ * Note the message itself does not contain the stream data. That is written separately by the
+ * sender. The receiver is expected to set a temporary channel handler that will consume the
+ * number of bytes this message says the stream has.
+ */
+public final class DigestStreamResponse extends AbstractResponseMessage {
+  public final String streamId;
+  public final long byteCount;
+  public final long digest;
+
+  public DigestStreamResponse(String streamId, long byteCount, ManagedBuffer buffer, long digest) {
+    super(buffer, false);
+    this.streamId = streamId;
+    this.byteCount = byteCount;
+    this.digest = digest;
+  }
+
+  @Override
+  public Message.Type type() { return Type.DigestStreamResponse; }
+
+  @Override
+  public int encodedLength() {
+    return 8 + Encoders.Strings.encodedLength(streamId) + 8;
+  }
+
+  /** Encoding does NOT include 'buffer' itself. See {@link MessageEncoder}. */
+  @Override
+  public void encode(ByteBuf buf) {
+    Encoders.Strings.encode(buf, streamId);
+    buf.writeLong(byteCount);
+    buf.writeLong(digest);
+  }
+
+  @Override
+  public ResponseMessage createFailureResponse(String error) {
+    return new StreamFailure(streamId, error);
+  }
+
+  public static DigestStreamResponse decode(ByteBuf buf) {
+    String streamId = Encoders.Strings.decode(buf);
+    long byteCount = buf.readLong();
+    long digest = buf.readLong();
+    return new DigestStreamResponse(streamId, byteCount, null, digest);
+  }
+
+  @Override
+  public int hashCode() {
+    return Objects.hashCode(byteCount, streamId, body(), digest);
+  }
+
+  @Override
+  public boolean equals(Object other) {
+    if (other instanceof DigestStreamResponse) {
+      DigestStreamResponse o = (DigestStreamResponse) other;
+      return byteCount == o.byteCount && streamId.equals(o.streamId) && digest == o.digest;
+    }
+    return false;
+  }
+
+  @Override
+  public String toString() {
+    return Objects.toStringHelper(this)
+      .add("streamId", streamId)
+      .add("byteCount", byteCount)
+      .add("digest", digest)
+      .add("body", body())
+      .toString();
+  }
+
+}

common/network-common/src/main/java/org/apache/spark/network/protocol/Message.java

@@ -37,7 +37,8 @@ enum Type implements Encodable {
     ChunkFetchRequest(0), ChunkFetchSuccess(1), ChunkFetchFailure(2),
     RpcRequest(3), RpcResponse(4), RpcFailure(5),
     StreamRequest(6), StreamResponse(7), StreamFailure(8),
-    OneWayMessage(9), UploadStream(10), User(-1);
+    OneWayMessage(9), UploadStream(10), DigestChunkFetchSuccess(11),
+    DigestStreamResponse(12), User(-1);
 
     private final byte id;
 
@@ -66,6 +67,8 @@ public static Type decode(ByteBuf buf) {
         case 8: return StreamFailure;
         case 9: return OneWayMessage;
         case 10: return UploadStream;
+        case 11: return DigestChunkFetchSuccess;
+        case 12: return DigestStreamResponse;
         case -1: throw new IllegalArgumentException("User type messages cannot be decoded.");
         default: throw new IllegalArgumentException("Unknown message type: " + id);
       }

common/network-common/src/main/java/org/apache/spark/network/protocol/MessageDecoder.java

@@ -50,6 +50,12 @@ public void decode(ChannelHandlerContext ctx, ByteBuf in, List<Object> out) {
 
   private Message decode(Message.Type msgType, ByteBuf in) {
     switch (msgType) {
+      case DigestChunkFetchSuccess:
+        return DigestChunkFetchSuccess.decode(in);
+
+      case DigestStreamResponse:
+        return DigestStreamResponse.decode(in);
+
       case ChunkFetchRequest:
         return ChunkFetchRequest.decode(in);