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Posted to common-commits@hadoop.apache.org by ni...@apache.org on 2008/01/25 23:20:28 UTC
svn commit: r615378 - in /hadoop/core/trunk: CHANGES.txt
src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java
src/test/org/apache/hadoop/test/AllTestDriver.java
Author: nigel
Date: Fri Jan 25 14:20:27 2008
New Revision: 615378
URL: http://svn.apache.org/viewvc?rev=615378&view=rev
Log:
HADOOP-2342. Created a micro-benchmark for measuring local-file versus hdfs reads. Contributed by Owen O'Malley.
Added:
hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java (with props)
Modified:
hadoop/core/trunk/CHANGES.txt
hadoop/core/trunk/src/test/org/apache/hadoop/test/AllTestDriver.java
Modified: hadoop/core/trunk/CHANGES.txt
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/CHANGES.txt?rev=615378&r1=615377&r2=615378&view=diff
==============================================================================
--- hadoop/core/trunk/CHANGES.txt (original)
+++ hadoop/core/trunk/CHANGES.txt Fri Jan 25 14:20:27 2008
@@ -299,6 +299,9 @@
HADOOP-2232. Add an option to disable Nagle's algorithm in the IPC stack.
(Clint Morgan via cdouglas)
+ HADOOP-2342. Created a micro-benchmark for measuring
+ local-file versus hdfs reads. (Owen O'Malley via nigel)
+
OPTIMIZATIONS
HADOOP-1898. Release the lock protecting the last time of the last stack
Added: hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java?rev=615378&view=auto
==============================================================================
--- hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java (added)
+++ hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java Fri Jan 25 14:20:27 2008
@@ -0,0 +1,234 @@
+/**
+ * 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.hadoop.dfs;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import org.apache.commons.logging.Log;
+import org.apache.commons.logging.LogFactory;
+import org.apache.commons.logging.impl.Log4JLogger;
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.conf.Configured;
+import org.apache.hadoop.fs.ChecksumFileSystem;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.LocalDirAllocator;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.util.Tool;
+import org.apache.hadoop.util.ToolRunner;
+
+import org.apache.log4j.Level;
+
+/**
+ * This class benchmarks the performance of the local file system, raw local
+ * file system and HDFS at reading and writing files. The user should invoke
+ * the main of this class and optionally include a repetition count.
+ */
+public class BenchmarkThroughput extends Configured implements Tool {
+
+ // the property in the config that specifies a working directory
+ private LocalDirAllocator dir;
+ private long startTime;
+ // the size of the buffer to use
+ private int BUFFER_SIZE;
+
+ private void resetMeasurements() {
+ startTime = System.currentTimeMillis();
+ }
+
+ private void printMeasurements() {
+ System.out.println(" time: " +
+ ((System.currentTimeMillis() - startTime)/1000));
+ }
+
+ private Path writeLocalFile(String name, Configuration conf,
+ long total) throws IOException {
+ Path path = dir.getLocalPathForWrite(name, total, conf);
+ System.out.print("Writing " + name);
+ resetMeasurements();
+ OutputStream out = new FileOutputStream(new File(path.toString()));
+ byte[] data = new byte[BUFFER_SIZE];
+ for(long size=0; size < total; size += BUFFER_SIZE) {
+ out.write(data);
+ }
+ out.close();
+ printMeasurements();
+ return path;
+ }
+
+ private void readLocalFile(Path path,
+ String name,
+ Configuration conf) throws IOException {
+ System.out.print("Reading " + name);
+ resetMeasurements();
+ InputStream in = new FileInputStream(new File(path.toString()));
+ byte[] data = new byte[BUFFER_SIZE];
+ long size = 0;
+ while (size >= 0) {
+ size = in.read(data);
+ }
+ in.close();
+ printMeasurements();
+ }
+
+ private void writeAndReadLocalFile(String name,
+ Configuration conf,
+ long size
+ ) throws IOException {
+ Path f = null;
+ try {
+ f = writeLocalFile(name, conf, size);
+ readLocalFile(f, name, conf);
+ } finally {
+ if (f != null) {
+ new File(f.toString()).delete();
+ }
+ }
+ }
+
+ private Path writeFile(FileSystem fs,
+ String name,
+ Configuration conf,
+ long total
+ ) throws IOException {
+ Path f = dir.getLocalPathForWrite(name, total, conf);
+ System.out.print("Writing " + name);
+ resetMeasurements();
+ OutputStream out = fs.create(f);
+ byte[] data = new byte[BUFFER_SIZE];
+ for(long size = 0; size < total; size += BUFFER_SIZE) {
+ out.write(data);
+ }
+ out.close();
+ printMeasurements();
+ return f;
+ }
+
+ private void readFile(FileSystem fs,
+ Path f,
+ String name,
+ Configuration conf
+ ) throws IOException {
+ System.out.print("Reading " + name);
+ resetMeasurements();
+ InputStream in = fs.open(f);
+ byte[] data = new byte[BUFFER_SIZE];
+ long val = 0;
+ while (val >= 0) {
+ val = in.read(data);
+ }
+ in.close();
+ printMeasurements();
+ }
+
+ private void writeAndReadFile(FileSystem fs,
+ String name,
+ Configuration conf,
+ long size
+ ) throws IOException {
+ Path f = null;
+ try {
+ f = writeFile(fs, name, conf, size);
+ readFile(fs, f, name, conf);
+ } finally {
+ try {
+ if (f != null) {
+ fs.delete(f);
+ }
+ } catch (IOException ie) {
+ // IGNORE
+ }
+ }
+ }
+
+ private static void printUsage() {
+ ToolRunner.printGenericCommandUsage(System.err);
+ System.err.println("Usage: dfsthroughput [#reps]");
+ System.err.println("Config properties:\n" +
+ " dfsthroughput.file.size:\tsize of each write/read (10GB)\n" +
+ " dfsthroughput.buffer.size:\tbuffer size for write/read (4k)\n");
+ }
+
+ public int run(String[] args) throws IOException {
+ // silence the minidfs cluster
+ Log hadoopLog = LogFactory.getLog("org");
+ if (hadoopLog instanceof Log4JLogger) {
+ ((Log4JLogger) hadoopLog).getLogger().setLevel(Level.WARN);
+ }
+ int reps = 1;
+ if (args.length == 1) {
+ try {
+ reps = Integer.parseInt(args[0]);
+ } catch (NumberFormatException e) {
+ printUsage();
+ return -1;
+ }
+ } else if (args.length > 1) {
+ printUsage();
+ return -1;
+ }
+ Configuration conf = getConf();
+ // the size of the file to write
+ long SIZE = conf.getLong("dfsthroughput.file.size",
+ 10L * 1024 * 1024 * 1024);
+ BUFFER_SIZE = conf.getInt("dfsthroughput.buffer.size", 4 * 1024);
+
+ String localDir = conf.get("mapred.temp.dir");
+ dir = new LocalDirAllocator("mapred.temp.dir");
+
+ System.setProperty("test.build.data", localDir);
+ System.out.println("Local = " + localDir);
+ ChecksumFileSystem checkedLocal = FileSystem.getLocal(conf);
+ FileSystem rawLocal = checkedLocal.getRawFileSystem();
+ for(int i=0; i < reps; ++i) {
+ writeAndReadLocalFile("local", conf, SIZE);
+ writeAndReadFile(rawLocal, "raw", conf, SIZE);
+ writeAndReadFile(checkedLocal, "checked", conf, SIZE);
+ }
+ MiniDFSCluster cluster = null;
+ try {
+ cluster = new MiniDFSCluster(conf, 1, true, new String[]{"/foo"});
+ cluster.waitActive();
+ FileSystem dfs = cluster.getFileSystem();
+ for(int i=0; i < reps; ++i) {
+ writeAndReadFile(dfs, "dfs", conf, SIZE);
+ }
+ } finally {
+ if (cluster != null) {
+ cluster.shutdown();
+ // clean up minidfs junk
+ rawLocal.delete(new Path(localDir, "dfs"));
+ }
+ }
+ return 0;
+ }
+
+ /**
+ * @param args
+ */
+ public static void main(String[] args) throws Exception {
+ int res = ToolRunner.run(new Configuration(),
+ new BenchmarkThroughput(), args);
+ System.exit(res);
+ }
+
+}
Propchange: hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java
------------------------------------------------------------------------------
svn:eol-style = native
Propchange: hadoop/core/trunk/src/test/org/apache/hadoop/dfs/BenchmarkThroughput.java
------------------------------------------------------------------------------
svn:keywords = Id Revision HeadURL
Modified: hadoop/core/trunk/src/test/org/apache/hadoop/test/AllTestDriver.java
URL: http://svn.apache.org/viewvc/hadoop/core/trunk/src/test/org/apache/hadoop/test/AllTestDriver.java?rev=615378&r1=615377&r2=615378&view=diff
==============================================================================
--- hadoop/core/trunk/src/test/org/apache/hadoop/test/AllTestDriver.java (original)
+++ hadoop/core/trunk/src/test/org/apache/hadoop/test/AllTestDriver.java Fri Jan 25 14:20:27 2008
@@ -26,6 +26,7 @@
import org.apache.hadoop.mapred.TestMapRed;
import org.apache.hadoop.mapred.TestSequenceFileInputFormat;
import org.apache.hadoop.mapred.TestTextInputFormat;
+import org.apache.hadoop.dfs.BenchmarkThroughput;
import org.apache.hadoop.dfs.ClusterTestDFS;
import org.apache.hadoop.dfs.NNBench;
import org.apache.hadoop.fs.DistributedFSCheck;
@@ -73,6 +74,8 @@
"non-splittable file and does identity map/reduce");
pgd.addClass("loadgen", GenericMRLoadGenerator.class, "Generic map/reduce load generator");
pgd.addClass("filebench", FileBench.class, "Benchmark SequenceFile(Input|Output)Format (block,record compressed and uncompressed), Text(Input|Output)Format (compressed and uncompressed)");
+ pgd.addClass("dfsthroughput", BenchmarkThroughput.class,
+ "measure hdfs throughput");
pgd.driver(argv);
} catch(Throwable e) {
e.printStackTrace();