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DX-66673: Backport HADOOP-15327. Upgrade MR ShuffleHandler to use Net…
…ty4 apache#3259. Contributed by Szilard Nemeth. (cherry picked from commit 5bb11ce) Change-Id: If33ff1e8adda356dd5c6dadfb54fde9d31f84de7
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106 changes: 106 additions & 0 deletions
106
...uce-client-shuffle/src/main/java/org/apache/hadoop/mapred/LoggingHttpResponseEncoder.java
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,106 @@ | ||
| /* | ||
| * 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. | ||
| */ | ||
|
|
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| package org.apache.hadoop.mapred; | ||
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| import io.netty.buffer.ByteBuf; | ||
| import io.netty.channel.ChannelHandlerContext; | ||
| import io.netty.channel.ChannelPromise; | ||
| import io.netty.handler.codec.http.HttpHeaders; | ||
| import io.netty.handler.codec.http.HttpResponse; | ||
| import io.netty.handler.codec.http.HttpResponseEncoder; | ||
| import org.slf4j.Logger; | ||
| import org.slf4j.LoggerFactory; | ||
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| import java.util.List; | ||
|
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| class LoggingHttpResponseEncoder extends HttpResponseEncoder { | ||
| private static final Logger LOG = LoggerFactory.getLogger(LoggingHttpResponseEncoder.class); | ||
| private final boolean logStacktraceOfEncodingMethods; | ||
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| LoggingHttpResponseEncoder(boolean logStacktraceOfEncodingMethods) { | ||
| this.logStacktraceOfEncodingMethods = logStacktraceOfEncodingMethods; | ||
| } | ||
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| @Override | ||
| public boolean acceptOutboundMessage(Object msg) throws Exception { | ||
| printExecutingMethod(); | ||
| LOG.info("OUTBOUND MESSAGE: " + msg); | ||
| return super.acceptOutboundMessage(msg); | ||
| } | ||
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| @Override | ||
| protected void encodeInitialLine(ByteBuf buf, HttpResponse response) throws Exception { | ||
| LOG.debug("Executing method: {}, response: {}", | ||
| getExecutingMethodName(), response); | ||
| logStacktraceIfRequired(); | ||
| super.encodeInitialLine(buf, response); | ||
| } | ||
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| @Override | ||
| protected void encode(ChannelHandlerContext ctx, Object msg, | ||
| List<Object> out) throws Exception { | ||
| LOG.debug("Encoding to channel {}: {}", ctx.channel(), msg); | ||
| printExecutingMethod(); | ||
| logStacktraceIfRequired(); | ||
| super.encode(ctx, msg, out); | ||
| } | ||
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| @Override | ||
| protected void encodeHeaders(HttpHeaders headers, ByteBuf buf) { | ||
| printExecutingMethod(); | ||
| super.encodeHeaders(headers, buf); | ||
| } | ||
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| @Override | ||
| public void write(ChannelHandlerContext ctx, Object msg, ChannelPromise | ||
| promise) throws Exception { | ||
| LOG.debug("Writing to channel {}: {}", ctx.channel(), msg); | ||
| printExecutingMethod(); | ||
| super.write(ctx, msg, promise); | ||
| } | ||
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| private void logStacktraceIfRequired() { | ||
| if (logStacktraceOfEncodingMethods) { | ||
| LOG.debug("Stacktrace: ", new Throwable()); | ||
| } | ||
| } | ||
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| private void printExecutingMethod() { | ||
| String methodName = getExecutingMethodName(1); | ||
| LOG.debug("Executing method: {}", methodName); | ||
| } | ||
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| private String getExecutingMethodName() { | ||
| return getExecutingMethodName(0); | ||
| } | ||
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| private String getExecutingMethodName(int additionalSkipFrames) { | ||
| try { | ||
| StackTraceElement[] stackTrace = Thread.currentThread().getStackTrace(); | ||
| // Array items (indices): | ||
| // 0: java.lang.Thread.getStackTrace(...) | ||
| // 1: TestShuffleHandler$LoggingHttpResponseEncoder.getExecutingMethodName(...) | ||
| int skipFrames = 2 + additionalSkipFrames; | ||
| String methodName = stackTrace[skipFrames].getMethodName(); | ||
| String className = this.getClass().getSimpleName(); | ||
| return className + "#" + methodName; | ||
| } catch (Throwable t) { | ||
| LOG.error("Error while getting execution method name", t); | ||
| return "unknown"; | ||
| } | ||
| } | ||
| } |
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