| /** |
| * 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.tez.runtime.library.shuffle.common; |
| |
| import java.io.IOException; |
| import java.io.InputStream; |
| import java.io.OutputStream; |
| import java.net.MalformedURLException; |
| import java.net.URL; |
| import java.nio.ByteBuffer; |
| import java.util.List; |
| |
| import javax.crypto.SecretKey; |
| |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.hadoop.io.DataInputByteBuffer; |
| import org.apache.hadoop.io.DataOutputBuffer; |
| import org.apache.hadoop.io.IOUtils; |
| import org.apache.hadoop.io.compress.CompressionCodec; |
| import org.apache.hadoop.security.token.Token; |
| import org.apache.tez.common.security.JobTokenIdentifier; |
| import org.apache.tez.common.security.JobTokenSecretManager; |
| import org.apache.tez.runtime.library.api.TezRuntimeConfiguration; |
| import org.apache.tez.runtime.library.common.InputAttemptIdentifier; |
| import org.apache.tez.runtime.library.common.sort.impl.IFile; |
| import org.apache.tez.runtime.library.shuffle.common.HttpConnection.HttpConnectionParams; |
| import org.apache.tez.runtime.library.shuffle.common.HttpConnection.HttpConnectionParamsBuilder; |
| import org.apache.tez.runtime.library.shuffle.impl.ShuffleUserPayloads.DataMovementEventPayloadProto; |
| |
| public class ShuffleUtils { |
| |
| private static final Log LOG = LogFactory.getLog(ShuffleUtils.class); |
| public static String SHUFFLE_HANDLER_SERVICE_ID = "mapreduce_shuffle"; |
| |
| public static SecretKey getJobTokenSecretFromTokenBytes(ByteBuffer meta) |
| throws IOException { |
| DataInputByteBuffer in = new DataInputByteBuffer(); |
| in.reset(meta); |
| Token<JobTokenIdentifier> jt = new Token<JobTokenIdentifier>(); |
| jt.readFields(in); |
| SecretKey sk = JobTokenSecretManager.createSecretKey(jt.getPassword()); |
| return sk; |
| } |
| |
| public static ByteBuffer convertJobTokenToBytes( |
| Token<JobTokenIdentifier> jobToken) throws IOException { |
| DataOutputBuffer dob = new DataOutputBuffer(); |
| jobToken.write(dob); |
| ByteBuffer bb = ByteBuffer.wrap(dob.getData(), 0, dob.getLength()); |
| return bb; |
| } |
| |
| public static int deserializeShuffleProviderMetaData(ByteBuffer meta) |
| throws IOException { |
| DataInputByteBuffer in = new DataInputByteBuffer(); |
| try { |
| in.reset(meta); |
| int port = in.readInt(); |
| return port; |
| } finally { |
| in.close(); |
| } |
| } |
| |
| @SuppressWarnings("resource") |
| public static void shuffleToMemory(byte[] shuffleData, |
| InputStream input, int decompressedLength, int compressedLength, |
| CompressionCodec codec, boolean ifileReadAhead, int ifileReadAheadLength, |
| Log LOG, String identifier) throws IOException { |
| try { |
| IFile.Reader.readToMemory(shuffleData, input, compressedLength, codec, |
| ifileReadAhead, ifileReadAheadLength); |
| // metrics.inputBytes(shuffleData.length); |
| LOG.info("Read " + shuffleData.length + " bytes from input for " |
| + identifier); |
| } catch (IOException ioe) { |
| // Close the streams |
| IOUtils.cleanup(LOG, input); |
| // Re-throw |
| throw ioe; |
| } |
| } |
| |
| public static void shuffleToDisk(OutputStream output, String hostIdentifier, |
| InputStream input, long compressedLength, Log LOG, String identifier) |
| throws IOException { |
| // Copy data to local-disk |
| long bytesLeft = compressedLength; |
| try { |
| final int BYTES_TO_READ = 64 * 1024; |
| byte[] buf = new byte[BYTES_TO_READ]; |
| while (bytesLeft > 0) { |
| int n = input.read(buf, 0, (int) Math.min(bytesLeft, BYTES_TO_READ)); |
| if (n < 0) { |
| throw new IOException("read past end of stream reading " |
| + identifier); |
| } |
| output.write(buf, 0, n); |
| bytesLeft -= n; |
| // metrics.inputBytes(n); |
| } |
| |
| LOG.info("Read " + (compressedLength - bytesLeft) |
| + " bytes from input for " + identifier); |
| |
| output.close(); |
| } catch (IOException ioe) { |
| // Close the streams |
| IOUtils.cleanup(LOG, input, output); |
| // Re-throw |
| throw ioe; |
| } |
| |
| // Sanity check |
| if (bytesLeft != 0) { |
| throw new IOException("Incomplete map output received for " + |
| identifier + " from " + |
| hostIdentifier + " (" + |
| bytesLeft + " bytes missing of " + |
| compressedLength + ")"); |
| } |
| } |
| |
| // TODO NEWTEZ handle ssl shuffle |
| public static StringBuilder constructBaseURIForShuffleHandler(String host, |
| int port, int partition, String appId, boolean sslShuffle) { |
| return constructBaseURIForShuffleHandler(host + ":" + String.valueOf(port), |
| partition, appId, sslShuffle); |
| } |
| |
| public static StringBuilder constructBaseURIForShuffleHandler(String hostIdentifier, |
| int partition, String appId, boolean sslShuffle) { |
| final String http_protocol = (sslShuffle) ? "https://" : "http://"; |
| StringBuilder sb = new StringBuilder(http_protocol); |
| sb.append(hostIdentifier); |
| sb.append("/"); |
| sb.append("mapOutput?job="); |
| sb.append(appId.replace("application", "job")); |
| sb.append("&reduce="); |
| sb.append(String.valueOf(partition)); |
| sb.append("&map="); |
| return sb; |
| } |
| |
| public static URL constructInputURL(String baseURI, |
| List<InputAttemptIdentifier> inputs, boolean keepAlive) throws MalformedURLException { |
| StringBuilder url = new StringBuilder(baseURI); |
| boolean first = true; |
| for (InputAttemptIdentifier input : inputs) { |
| if (first) { |
| first = false; |
| url.append(input.getPathComponent()); |
| } else { |
| url.append(",").append(input.getPathComponent()); |
| } |
| } |
| //It is possible to override keep-alive setting in cluster by adding keepAlive in url. |
| //Refer MAPREDUCE-5787 to enable/disable keep-alive in the cluster. |
| if (keepAlive) { |
| url.append("&keepAlive=true"); |
| } |
| return new URL(url.toString()); |
| } |
| |
| public static HttpConnectionParams constructHttpShuffleConnectionParams( |
| Configuration conf) { |
| HttpConnectionParamsBuilder builder = new HttpConnectionParamsBuilder(); |
| |
| int connectionTimeout = |
| conf.getInt(TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_CONNECT_TIMEOUT, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_STALLED_COPY_TIMEOUT_DEFAULT); |
| |
| int readTimeout = |
| conf.getInt(TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_READ_TIMEOUT, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_READ_TIMEOUT_DEFAULT); |
| |
| int bufferSize = |
| conf.getInt(TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_BUFFER_SIZE, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_BUFFER_SIZE_DEFAULT); |
| |
| boolean keepAlive = |
| conf.getBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_KEEP_ALIVE_ENABLED, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_KEEP_ALIVE_ENABLED_DEFAULT); |
| int keepAliveMaxConnections = |
| conf.getInt( |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_KEEP_ALIVE_MAX_CONNECTIONS, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_KEEP_ALIVE_MAX_CONNECTIONS_DEFAULT); |
| if (keepAlive) { |
| System.setProperty("sun.net.http.errorstream.enableBuffering", "true"); |
| System.setProperty("http.maxConnections", |
| String.valueOf(keepAliveMaxConnections)); |
| LOG.info("Set keepAlive max connections: " + keepAliveMaxConnections); |
| } |
| |
| builder.setTimeout(connectionTimeout, readTimeout) |
| .setBufferSize(bufferSize) |
| .setKeepAlive(keepAlive, keepAliveMaxConnections); |
| |
| boolean sslShuffle = conf.getBoolean(TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_ENABLE_SSL, |
| TezRuntimeConfiguration.TEZ_RUNTIME_SHUFFLE_ENABLE_SSL_DEFAULT); |
| builder.setSSL(sslShuffle, conf); |
| |
| return builder.build(); |
| } |
| |
| public static String stringify(DataMovementEventPayloadProto dmProto) { |
| StringBuilder sb = new StringBuilder(); |
| sb.append("["); |
| sb.append("hasEmptyPartitions: ").append(dmProto.hasEmptyPartitions()).append(", "); |
| sb.append("host: " + dmProto.getHost()).append(", "); |
| sb.append("port: " + dmProto.getPort()).append(", "); |
| sb.append("pathComponent: " + dmProto.getPathComponent()).append(", "); |
| sb.append("runDuration: " + dmProto.getRunDuration()).append(", "); |
| sb.append("hasDataInEvent: " + dmProto.hasData()); |
| sb.append("]"); |
| return sb.toString(); |
| } |
| } |
| |