gaoyunhaii commented on a change in pull request #7368: [FLINK-10742][network] Let Netty use Flink's buffers directly in credit-based mode URL: https://github.com/apache/flink/pull/7368#discussion_r376828348
########## File path: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/netty/NetworkBufferAllocator.java ########## @@ -0,0 +1,74 @@ +/* + * 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.flink.runtime.io.network.netty; + +import org.apache.flink.core.memory.MemorySegment; +import org.apache.flink.core.memory.MemorySegmentFactory; +import org.apache.flink.runtime.io.network.buffer.Buffer; +import org.apache.flink.runtime.io.network.buffer.FreeingBufferRecycler; +import org.apache.flink.runtime.io.network.buffer.NetworkBuffer; +import org.apache.flink.runtime.io.network.partition.consumer.InputChannelID; +import org.apache.flink.runtime.io.network.partition.consumer.RemoteInputChannel; + +import static org.apache.flink.util.Preconditions.checkNotNull; + +/** + * An allocator used for requesting buffers in the receiver side of netty handlers. + */ +public class NetworkBufferAllocator { + private final CreditBasedPartitionRequestClientHandler partitionRequestClientHandler; Review comment: Agree with that it should be better to rely on the interface instead of implementation. I have modified the code according. However, One small concern remaining is that the new decoder works only when it ensures the receiver side always have available buffers. The current NetworkClient interface cannot ensure the implementation used satisfies this condition. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services
