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Posted to commits@pig.apache.org by ya...@apache.org on 2010/02/13 01:06:17 UTC
svn commit: r909667 [6/9] - in
/hadoop/pig/branches/load-store-redesign/contrib/zebra: ./
src/java/org/apache/hadoop/zebra/ src/java/org/apache/hadoop/zebra/io/
src/java/org/apache/hadoop/zebra/mapred/
src/java/org/apache/hadoop/zebra/mapreduce/ src/ja...
Added: hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3.java
URL: http://svn.apache.org/viewvc/hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3.java?rev=909667&view=auto
==============================================================================
--- hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3.java (added)
+++ hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3.java Sat Feb 13 00:06:15 2010
@@ -0,0 +1,639 @@
+/**
+ * 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.zebra.mapreduce;
+
+import java.io.BufferedWriter;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Iterator;
+import java.util.StringTokenizer;
+
+import junit.framework.Assert;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.LocalFileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.io.BytesWritable;
+import org.apache.hadoop.io.LongWritable;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.Mapper;
+import org.apache.hadoop.mapreduce.Reducer;
+import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
+import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
+import org.apache.hadoop.zebra.mapreduce.BasicTableOutputFormat;
+import org.apache.hadoop.zebra.mapreduce.ZebraOutputPartition;
+import org.apache.hadoop.zebra.parser.ParseException;
+import org.apache.hadoop.zebra.schema.Schema;
+import org.apache.hadoop.zebra.types.TypesUtils;
+import org.apache.hadoop.zebra.types.ZebraTuple;
+import org.apache.pig.ExecType;
+import org.apache.pig.PigServer;
+import org.apache.pig.backend.executionengine.ExecException;
+import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil;
+import org.apache.pig.data.Tuple;
+import org.apache.pig.test.MiniCluster;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This is a sample a complete MR sample code for Table. It doens't contain
+ * 'read' part. But, it should be similar and easier to write. Refer to test
+ * cases in the same directory.
+ *
+ * Assume the input files contain rows of word and count, separated by a space:
+ *
+ * <pre>
+ * us 2
+ * japan 2
+ * india 4
+ * us 2
+ * japan 1
+ * india 3
+ * nouse 5
+ * nowhere 4
+ *
+ *
+ */
+public class TestMultipleOutputs3 {
+
+ static String inputPath;
+ static String inputFileName = "multi-input.txt";
+ protected static ExecType execType = ExecType.LOCAL;
+ private static MiniCluster cluster;
+ protected static PigServer pigServer;
+ // private static Path pathWorking, pathTable1, path2, path3,
+ // pathTable4, pathTable5;
+ private static Configuration conf;
+ public static String sortKey = null;
+
+ private static FileSystem fs;
+
+ private static String zebraJar;
+ private static String whichCluster;
+ private static String multiLocs;
+ private static String strTable1 = null;
+ private static String strTable2 = null;
+ private static String strTable3 = null;
+
+ @BeforeClass
+ public static void setUpOnce() throws IOException {
+ if (System.getenv("hadoop.log.dir") == null) {
+ String base = new File(".").getPath(); // getAbsolutePath();
+ System
+ .setProperty("hadoop.log.dir", new Path(base).toString() + "./logs");
+ }
+
+ if (System.getProperty("whichCluster") == null) {
+ System.setProperty("whichCluster", "miniCluster");
+ System.out.println("should be called");
+ whichCluster = System.getProperty("whichCluster");
+ } else {
+ whichCluster = System.getProperty("whichCluster");
+ }
+
+ System.out.println("clusterddddd: " + whichCluster);
+ System.out.println(" get env hadoop home: " + System.getenv("HADOOP_HOME"));
+ System.out.println(" get env user name: " + System.getenv("USER"));
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System
+ .getenv("HADOOP_HOME") == null)) {
+ System.out.println("Please set HADOOP_HOME");
+ System.exit(0);
+ }
+
+ conf = new Configuration();
+
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System.getenv("USER") == null)) {
+ System.out.println("Please set USER");
+ System.exit(0);
+ }
+ zebraJar = System.getenv("HADOOP_HOME") + "/lib/zebra.jar";
+
+ File file = new File(zebraJar);
+ if (!file.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put zebra.jar at hadoop_home/lib");
+ System.exit(0);
+ }
+
+ // set inputPath and output path
+ String workingDir = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ inputPath = new String("/user/" + System.getenv("USER") + "/"
+ + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String("/user/" + System.getenv("USER") + "/" + "us"
+ + "," + "/user/" + System.getenv("USER") + "/" + "india" + ","
+ + "/user/" + System.getenv("USER") + "/" + "japan");
+ fs = new Path(inputPath).getFileSystem(conf);
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ inputPath = new String(workingDir + "/" + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String(workingDir + "/" + "us" + "," + workingDir + "/"
+ + "india" + "," + workingDir + "/" + "japan");
+ }
+ writeToFile(inputPath);
+ // check inputPath existence
+ File inputFile = new File(inputPath);
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put inputFile in hdfs: " + inputPath);
+ // System.exit(0);
+ }
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("miniCluster")) {
+ System.out
+ .println("Please put inputFile under workingdir. working dir is : "
+ + workingDir);
+ System.exit(0);
+ }
+
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ pigServer = new PigServer(ExecType.MAPREDUCE, ConfigurationUtil
+ .toProperties(conf));
+ pigServer.registerJar(zebraJar);
+
+ }
+
+ if (whichCluster.equalsIgnoreCase("miniCluster")) {
+ if (execType == ExecType.MAPREDUCE) {
+ cluster = MiniCluster.buildCluster();
+ pigServer = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
+ fs = cluster.getFileSystem();
+
+ } else {
+ pigServer = new PigServer(ExecType.LOCAL);
+ }
+ }
+ }
+
+ public String getCurrentMethodName() {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ PrintWriter pw = new PrintWriter(baos);
+ (new Throwable()).printStackTrace(pw);
+ pw.flush();
+ String stackTrace = baos.toString();
+ pw.close();
+
+ StringTokenizer tok = new StringTokenizer(stackTrace, "\n");
+ tok.nextToken(); // 'java.lang.Throwable'
+ tok.nextToken(); // 'at ...getCurrentMethodName'
+ String l = tok.nextToken(); // 'at ...<caller to getCurrentRoutine>'
+ // Parse line 3
+ tok = new StringTokenizer(l.trim(), " <(");
+ String t = tok.nextToken(); // 'at'
+ t = tok.nextToken(); // '...<caller to getCurrentRoutine>'
+ StringTokenizer st = new StringTokenizer(t, ".");
+ String methodName = null;
+ while (st.hasMoreTokens()) {
+ methodName = st.nextToken();
+ }
+ return methodName;
+ }
+ public static void writeToFile (String inputFile) throws IOException{
+ if (whichCluster.equalsIgnoreCase("miniCluster")){
+ FileWriter fstream = new FileWriter(inputFile);
+ BufferedWriter out = new BufferedWriter(fstream);
+ out.write("us 2\n");
+ out.write("japan 2\n");
+ out.write("india 4\n");
+ out.write("us 2\n");
+ out.write("japan 1\n");
+ out.write("india 3\n");
+ out.write("nouse 5\n");
+ out.write("nowhere 4\n");
+ out.close();
+ }
+ if (whichCluster.equalsIgnoreCase("realCluster")){
+ FSDataOutputStream fout = fs.create(new Path (inputFile));
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 2\n");
+ fout.writeBytes("india 4\n");
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 1\n");
+ fout.writeBytes("india 3\n");
+ fout.writeBytes("nouse 5\n");
+ fout.writeBytes("nowhere 4\n");
+ fout.close();
+ }
+ }
+
+ public Path generateOutPath(String currentMethod) {
+ Path outPath = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ outPath = new Path("/user/" + System.getenv("USER") + "/multiOutput/"
+ + currentMethod);
+ } else {
+ String workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ outPath = new Path(workingDir + "/multiOutput/" + currentMethod);
+ System.out.println("output file: " + outPath.toString());
+ }
+ return outPath;
+ }
+
+ public void removeDir(Path outPath) throws IOException {
+ String command = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ command = System.getenv("HADOOP_HOME") + "/bin/hadoop fs -rmr "
+ + outPath.toString();
+ } else {
+ StringTokenizer st = new StringTokenizer(outPath.toString(), ":");
+ int count = 0;
+ String file = null;
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (count == 2)
+ file = token;
+ }
+ command = "rm -rf " + file;
+ }
+ Runtime runtime = Runtime.getRuntime();
+ Process proc = runtime.exec(command);
+ int exitVal = -1;
+ try {
+ exitVal = proc.waitFor();
+ } catch (InterruptedException e) {
+ System.err.println(e);
+ }
+
+ }
+
+ public static void getTablePaths(String myMultiLocs) {
+ StringTokenizer st = new StringTokenizer(myMultiLocs, ",");
+
+ // get how many tokens inside st object
+ System.out.println("tokens count: " + st.countTokens());
+ int count = 0;
+
+ // iterate st object to get more tokens from it
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (count == 1)
+ strTable1 = token;
+ if (count == 2)
+ strTable2 = token;
+ if (count == 3)
+ strTable3 = token;
+ System.out.println("token = " + token);
+ }
+ }
+
+ public static void checkTable(String myMultiLocs) throws IOException {
+ System.out.println("myMultiLocs:" + myMultiLocs);
+ System.out.println("sorgetTablePathst key:" + sortKey);
+
+ getTablePaths(myMultiLocs);
+ String query1 = null;
+ String query2 = null;
+
+ if (strTable1 != null) {
+
+ query1 = "records1 = LOAD '" + strTable1
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+ if (strTable2 != null) {
+ query2 = "records2 = LOAD '" + strTable2
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+
+ int count1 = 0;
+ int count2 = 0;
+
+ if (query1 != null) {
+ System.out.println(query1);
+ pigServer.registerQuery(query1);
+ Iterator<Tuple> it = pigServer.openIterator("records1");
+ while (it.hasNext()) {
+ count1++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+ // test 1 us table
+ if (query1.contains("test1") || query1.contains("test2")
+ || query1.contains("test3")) {
+
+ if (count1 == 1) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count1 == 2) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ } // test1, test2
+
+ }// while
+ if (query1.contains("test1") || query1.contains("test2")
+ || query1.contains("test3")) {
+ Assert.assertEquals(2, count1);
+ }
+ }// if query1 != null
+
+ if (query2 != null) {
+ pigServer.registerQuery(query2);
+ Iterator<Tuple> it = pigServer.openIterator("records2");
+
+ while (it.hasNext()) {
+ count2++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+
+ // if test1 other table
+ if (query2.contains("test1")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test1
+ // if test2 other table
+ if (query2.contains("test2")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test2
+ // if test3 other table
+ if (query2.contains("test3")) {
+ if (count2 == 1) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 5) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+
+ }// if test3
+
+ }// while
+ if (query2.contains("test1") || query2.contains("test2")
+ || query2.contains("test3")) {
+ Assert.assertEquals(6, count2);
+ }
+ }// if query2 != null
+
+ }
+
+ // TODO: No exception is thrown any more due to Hadoop 20 API. This test case
+ // should be re-designed in the future.
+ @Test//(expected = IOException.class)
+ public void test1() throws ParseException, IOException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ /*
+ * test combine sort keys
+ */
+ System.out.println("******Starttt testcase: " + getCurrentMethodName());
+ sortKey = "word,count";
+ System.out.println("hello sort on word and count");
+ String methodName = getCurrentMethodName();
+ String myMultiLocs = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ myMultiLocs = new String("/user/" + System.getenv("USER") + "/" + "us"
+ + methodName + "," + "/user/" + System.getenv("USER") + "/"
+ + "others" + methodName);
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ myMultiLocs = new String(fs.getWorkingDirectory() + "/" + "us"
+ + methodName + "," + fs.getWorkingDirectory() + "/" + "others"
+ + methodName);
+ }
+ getTablePaths(myMultiLocs);
+ removeDir(new Path(strTable1));
+ removeDir(new Path(strTable2));
+ runMR(myMultiLocs, sortKey);
+ // checkTable(myMultiLocs);
+ // Assert.fail("test 1 ,should have thrown IOExcepiton");
+ System.out.println("DONE test " + getCurrentMethodName());
+
+ }
+
+
+ static class MapClass extends
+ Mapper<LongWritable, Text, BytesWritable, Tuple> {
+ private BytesWritable bytesKey;
+ private Tuple tupleRow;
+ private Object javaObj;
+
+ @Override
+ public void map(LongWritable key, Text value, Context context)
+ throws IOException, InterruptedException {
+ // value should contain "word count"
+ String[] wdct = value.toString().split(" ");
+ if (wdct.length != 2) {
+ // LOG the error
+ return;
+ }
+
+ byte[] word = wdct[0].getBytes();
+ bytesKey.set(word, 0, word.length);
+ System.out.println("word: " + new String(word));
+ tupleRow.set(0, new String(word));
+ tupleRow.set(1, Integer.parseInt(wdct[1]));
+ System.out.println("count: " + Integer.parseInt(wdct[1]));
+
+ // This key has to be created by user
+ /*
+ * Tuple userKey = new DefaultTuple(); userKey.append(new String(word));
+ * userKey.append(Integer.parseInt(wdct[1]));
+ */
+ System.out.println("in map, sortkey: " + sortKey);
+ Tuple userKey = new ZebraTuple();
+ if (sortKey.equalsIgnoreCase("word,count")) {
+ userKey.append(new String(word));
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("count")) {
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("word")) {
+ userKey.append(new String(word));
+ }
+
+ try {
+
+ /* New M/R Interface */
+ /* Converts user key to zebra BytesWritable key */
+ /* using sort key expr tree */
+ /* Returns a java base object */
+ /* Done for each user key */
+
+ bytesKey = BasicTableOutputFormat.getSortKey(javaObj, userKey);
+ } catch (Exception e) {
+
+ }
+
+ context.write(bytesKey, tupleRow);
+ }
+
+ @Override
+ public void setup(Context context) {
+ bytesKey = new BytesWritable();
+ sortKey = context.getConfiguration().get("sortKey");
+ try {
+ Schema outSchema = BasicTableOutputFormat.getSchema(context);
+ tupleRow = TypesUtils.createTuple(outSchema);
+ javaObj = BasicTableOutputFormat.getSortKeyGenerator(context);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ } catch (org.apache.hadoop.zebra.parser.ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ }
+
+ static class ReduceClass extends
+ Reducer<BytesWritable, Tuple, BytesWritable, Tuple> {
+ Tuple outRow;
+
+ public void reduce(BytesWritable key, Iterator<Tuple> values, Context context)
+ throws IOException, InterruptedException {
+ try {
+ for (; values.hasNext();) {
+ context.write(key, values.next());
+ }
+ } catch (ExecException e) {
+ e.printStackTrace();
+ }
+ }
+
+ }
+
+ static class OutputPartitionerClass extends ZebraOutputPartition {
+
+ @Override
+ public int getOutputPartition(BytesWritable key, Tuple value) throws IndexOutOfBoundsException, ExecException{
+
+ // System.out.println(this.jobConf);
+ value.get(2);
+ Assert.fail("int try, should have thrown exception");
+ return 0;
+ }
+
+ }
+
+ public void runMR(String myMultiLocs, String sortKey) throws ParseException,
+ IOException, Exception, org.apache.hadoop.zebra.parser.ParseException {
+
+ Job job = new Job();
+ job.setJobName("tableMRSample");
+ Configuration conf = job.getConfiguration();
+ conf.set("table.output.tfile.compression", "gz");
+ conf.set("sortKey", sortKey);
+ // input settings
+ job.setInputFormatClass(TextInputFormat.class);
+ job.setMapperClass(TestMultipleOutputs3.MapClass.class);
+ job.setMapOutputKeyClass(BytesWritable.class);
+ job.setMapOutputValueClass(ZebraTuple.class);
+ FileInputFormat.setInputPaths(job, inputPath);
+
+ // output settings
+ job.setOutputFormatClass(BasicTableOutputFormat.class);
+ BasicTableOutputFormat.setMultipleOutputs(job, myMultiLocs,
+ TestMultipleOutputs3.OutputPartitionerClass.class);
+
+ // set the logical schema with 2 columns
+ BasicTableOutputFormat.setSchema(job, "word:string, count:int");
+ // for demo purposes, create 2 physical column groups
+ BasicTableOutputFormat.setStorageHint(job, "[word];[count]");
+ BasicTableOutputFormat.setSortInfo(job, sortKey);
+ System.out.println("in runMR, sortkey: " + sortKey);
+ // set map-only job.
+ job.setNumReduceTasks(1);
+ job.submit();
+ job.waitForCompletion( true );
+ BasicTableOutputFormat.close( job );
+ }
+
+ public static void main(String[] args) throws ParseException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ TestMultipleOutputs3 test = new TestMultipleOutputs3();
+ TestMultipleOutputs3.setUpOnce();
+ test.test1();
+
+ }
+}
Added: hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3TypedApi.java
URL: http://svn.apache.org/viewvc/hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3TypedApi.java?rev=909667&view=auto
==============================================================================
--- hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3TypedApi.java (added)
+++ hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs3TypedApi.java Sat Feb 13 00:06:15 2010
@@ -0,0 +1,659 @@
+/**
+ * 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.zebra.mapreduce;
+
+import java.io.BufferedWriter;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.StringTokenizer;
+
+import junit.framework.Assert;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.LocalFileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.io.BytesWritable;
+import org.apache.hadoop.io.LongWritable;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.Mapper;
+import org.apache.hadoop.mapreduce.Reducer;
+import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
+import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
+import org.apache.hadoop.zebra.mapreduce.BasicTableOutputFormat;
+import org.apache.hadoop.zebra.mapreduce.ZebraOutputPartition;
+import org.apache.hadoop.zebra.mapreduce.ZebraSchema;
+import org.apache.hadoop.zebra.mapreduce.ZebraSortInfo;
+import org.apache.hadoop.zebra.mapreduce.ZebraStorageHint;
+import org.apache.hadoop.zebra.parser.ParseException;
+import org.apache.hadoop.zebra.schema.Schema;
+import org.apache.hadoop.zebra.types.TypesUtils;
+import org.apache.hadoop.zebra.types.ZebraTuple;
+import org.apache.pig.ExecType;
+import org.apache.pig.PigServer;
+import org.apache.pig.backend.executionengine.ExecException;
+import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil;
+import org.apache.pig.data.DefaultTuple;
+import org.apache.pig.data.Tuple;
+import org.apache.pig.test.MiniCluster;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This is a sample a complete MR sample code for Table. It doens't contain
+ * 'read' part. But, it should be similar and easier to write. Refer to test
+ * cases in the same directory.
+ *
+ * Assume the input files contain rows of word and count, separated by a space:
+ *
+ * <pre>
+ * us 2
+ * japan 2
+ * india 4
+ * us 2
+ * japan 1
+ * india 3
+ * nouse 5
+ * nowhere 4
+ *
+ *
+ */
+public class TestMultipleOutputs3TypedApi {
+
+ static String inputPath;
+ static String inputFileName = "multi-input.txt";
+ protected static ExecType execType = ExecType.LOCAL;
+ private static MiniCluster cluster;
+ protected static PigServer pigServer;
+ // private static Path pathWorking, pathTable1, path2, path3,
+ // pathTable4, pathTable5;
+ private static Configuration conf;
+ public static String sortKey = null;
+
+ private static FileSystem fs;
+
+ private static String zebraJar;
+ private static String whichCluster;
+ private static String multiLocs;
+ private static String strTable1 = null;
+ private static String strTable2 = null;
+ private static String strTable3 = null;
+
+ @BeforeClass
+ public static void setUpOnce() throws IOException {
+ if (System.getenv("hadoop.log.dir") == null) {
+ String base = new File(".").getPath(); // getAbsolutePath();
+ System
+ .setProperty("hadoop.log.dir", new Path(base).toString() + "./logs");
+ }
+
+ if (System.getProperty("whichCluster") == null) {
+ System.setProperty("whichCluster", "miniCluster");
+ System.out.println("should be called");
+ whichCluster = System.getProperty("whichCluster");
+ } else {
+ whichCluster = System.getProperty("whichCluster");
+ }
+
+ System.out.println("clusterddddd: " + whichCluster);
+ System.out.println(" get env hadoop home: " + System.getenv("HADOOP_HOME"));
+ System.out.println(" get env user name: " + System.getenv("USER"));
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System
+ .getenv("HADOOP_HOME") == null)) {
+ System.out.println("Please set HADOOP_HOME");
+ System.exit(0);
+ }
+
+ conf = new Configuration();
+
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System.getenv("USER") == null)) {
+ System.out.println("Please set USER");
+ System.exit(0);
+ }
+ zebraJar = System.getenv("HADOOP_HOME") + "/lib/zebra.jar";
+
+ File file = new File(zebraJar);
+ if (!file.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put zebra.jar at hadoop_home/lib");
+ System.exit(0);
+ }
+
+ // set inputPath and output path
+ String workingDir = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ inputPath = new String("/user/" + System.getenv("USER") + "/"
+ + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String("/user/" + System.getenv("USER") + "/" + "us"
+ + "," + "/user/" + System.getenv("USER") + "/" + "india" + ","
+ + "/user/" + System.getenv("USER") + "/" + "japan");
+ fs = new Path(inputPath).getFileSystem(conf);
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ inputPath = new String(workingDir + "/" + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String(workingDir + "/" + "us" + "," + workingDir + "/"
+ + "india" + "," + workingDir + "/" + "japan");
+ }
+ writeToFile(inputPath);
+ // check inputPath existence
+ File inputFile = new File(inputPath);
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put inputFile in hdfs: " + inputPath);
+ // System.exit(0);
+ }
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("miniCluster")) {
+ System.out
+ .println("Please put inputFile under workingdir. working dir is : "
+ + workingDir);
+ System.exit(0);
+ }
+
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ pigServer = new PigServer(ExecType.MAPREDUCE, ConfigurationUtil
+ .toProperties(conf));
+ pigServer.registerJar(zebraJar);
+
+ }
+
+ if (whichCluster.equalsIgnoreCase("miniCluster")) {
+ if (execType == ExecType.MAPREDUCE) {
+ cluster = MiniCluster.buildCluster();
+ pigServer = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
+ fs = cluster.getFileSystem();
+
+ } else {
+ pigServer = new PigServer(ExecType.LOCAL);
+ }
+ }
+ }
+
+ public String getCurrentMethodName() {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ PrintWriter pw = new PrintWriter(baos);
+ (new Throwable()).printStackTrace(pw);
+ pw.flush();
+ String stackTrace = baos.toString();
+ pw.close();
+
+ StringTokenizer tok = new StringTokenizer(stackTrace, "\n");
+ tok.nextToken(); // 'java.lang.Throwable'
+ tok.nextToken(); // 'at ...getCurrentMethodName'
+ String l = tok.nextToken(); // 'at ...<caller to getCurrentRoutine>'
+ // Parse line 3
+ tok = new StringTokenizer(l.trim(), " <(");
+ String t = tok.nextToken(); // 'at'
+ t = tok.nextToken(); // '...<caller to getCurrentRoutine>'
+ StringTokenizer st = new StringTokenizer(t, ".");
+ String methodName = null;
+ while (st.hasMoreTokens()) {
+ methodName = st.nextToken();
+ }
+ return methodName;
+ }
+ public static void writeToFile (String inputFile) throws IOException{
+ if (whichCluster.equalsIgnoreCase("miniCluster")){
+ FileWriter fstream = new FileWriter(inputFile);
+ BufferedWriter out = new BufferedWriter(fstream);
+ out.write("us 2\n");
+ out.write("japan 2\n");
+ out.write("india 4\n");
+ out.write("us 2\n");
+ out.write("japan 1\n");
+ out.write("india 3\n");
+ out.write("nouse 5\n");
+ out.write("nowhere 4\n");
+ out.close();
+ }
+ if (whichCluster.equalsIgnoreCase("realCluster")){
+ FSDataOutputStream fout = fs.create(new Path (inputFile));
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 2\n");
+ fout.writeBytes("india 4\n");
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 1\n");
+ fout.writeBytes("india 3\n");
+ fout.writeBytes("nouse 5\n");
+ fout.writeBytes("nowhere 4\n");
+ fout.close();
+ }
+ }
+
+ public Path generateOutPath(String currentMethod) {
+ Path outPath = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ outPath = new Path("/user/" + System.getenv("USER") + "/multiOutput/"
+ + currentMethod);
+ } else {
+ String workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ outPath = new Path(workingDir + "/multiOutput/" + currentMethod);
+ System.out.println("output file: " + outPath.toString());
+ }
+ return outPath;
+ }
+
+ public void removeDir(Path outPath) throws IOException {
+ String command = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ command = System.getenv("HADOOP_HOME") + "/bin/hadoop fs -rmr "
+ + outPath.toString();
+ } else {
+ StringTokenizer st = new StringTokenizer(outPath.toString(), ":");
+ int count = 0;
+ String file = null;
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (count == 2)
+ file = token;
+ }
+ command = "rm -rf " + file;
+ }
+ Runtime runtime = Runtime.getRuntime();
+ Process proc = runtime.exec(command);
+ int exitVal = -1;
+ try {
+ exitVal = proc.waitFor();
+ } catch (InterruptedException e) {
+ System.err.println(e);
+ }
+
+ }
+
+ public static void getTablePaths(String myMultiLocs) {
+ StringTokenizer st = new StringTokenizer(myMultiLocs, ",");
+
+ // get how many tokens inside st object
+ System.out.println("tokens count: " + st.countTokens());
+ int count = 0;
+
+ // iterate st object to get more tokens from it
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (count == 1)
+ strTable1 = token;
+ if (count == 2)
+ strTable2 = token;
+ if (count == 3)
+ strTable3 = token;
+ System.out.println("token = " + token);
+ }
+ }
+
+ public static void checkTable(String myMultiLocs) throws IOException {
+ System.out.println("myMultiLocs:" + myMultiLocs);
+ System.out.println("sorgetTablePathst key:" + sortKey);
+
+ getTablePaths(myMultiLocs);
+ String query1 = null;
+ String query2 = null;
+
+ if (strTable1 != null) {
+
+ query1 = "records1 = LOAD '" + strTable1
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+ if (strTable2 != null) {
+ query2 = "records2 = LOAD '" + strTable2
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+
+ int count1 = 0;
+ int count2 = 0;
+
+ if (query1 != null) {
+ System.out.println(query1);
+ pigServer.registerQuery(query1);
+ Iterator<Tuple> it = pigServer.openIterator("records1");
+ while (it.hasNext()) {
+ count1++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+ // test 1 us table
+ if (query1.contains("test1") || query1.contains("test2")
+ || query1.contains("test3")) {
+
+ if (count1 == 1) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count1 == 2) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ } // test1, test2
+
+ }// while
+ if (query1.contains("test1") || query1.contains("test2")
+ || query1.contains("test3")) {
+ Assert.assertEquals(2, count1);
+ }
+ }// if query1 != null
+
+ if (query2 != null) {
+ pigServer.registerQuery(query2);
+ Iterator<Tuple> it = pigServer.openIterator("records2");
+
+ while (it.hasNext()) {
+ count2++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+
+ // if test1 other table
+ if (query2.contains("test1")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test1
+ // if test2 other table
+ if (query2.contains("test2")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test2
+ // if test3 other table
+ if (query2.contains("test3")) {
+ if (count2 == 1) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 5) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+
+ }// if test3
+
+ }// while
+ if (query2.contains("test1") || query2.contains("test2")
+ || query2.contains("test3")) {
+ Assert.assertEquals(6, count2);
+ }
+ }// if query2 != null
+
+ }
+
+ // TODO: No exception is thrown any more due to Hadoop 20 API. This test case
+ // should be re-designed in the future.
+ @Test//(expected = IOException.class)
+ public void test1() throws ParseException, IOException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ /*
+ * test combine sort keys
+ */
+ System.out.println("******Starttt testcase: " + getCurrentMethodName());
+ sortKey = "word,count";
+ System.out.println("hello sort on word and count");
+ String methodName = getCurrentMethodName();
+ String myMultiLocs = null;
+ List<Path> paths = new ArrayList<Path>(2);
+
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ myMultiLocs = new String("/user/" + System.getenv("USER") + "/" + "us"
+ + methodName + "," + "/user/" + System.getenv("USER") + "/"
+ + "others" + methodName);
+ paths.add(new Path(new String("/user/" + System.getenv("USER") + "/" + "us" + methodName)));
+ paths.add(new Path(new String("/user/" + System.getenv("USER") + "/" + "others" + methodName)));
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ myMultiLocs = new String(fs.getWorkingDirectory() + "/" + "us"
+ + methodName + "," + fs.getWorkingDirectory() + "/" + "others"
+ + methodName);
+
+ paths.add(new Path(new String(fs.getWorkingDirectory() + "/" + "us" + methodName)));
+ paths.add(new Path(new String(fs.getWorkingDirectory() + "/" + "others" + methodName)));
+ }
+ getTablePaths(myMultiLocs);
+ removeDir(new Path(strTable1));
+ removeDir(new Path(strTable2));
+ runMR(sortKey, paths.toArray(new Path[2]));
+
+ // checkTable(myMultiLocs);
+ // Assert.fail("test 1 ,should have thrown IOExcepiton");
+ System.out.println("DONE test " + getCurrentMethodName());
+
+ }
+
+
+ static class MapClass extends
+ Mapper<LongWritable, Text, BytesWritable, Tuple> {
+ private BytesWritable bytesKey;
+ private Tuple tupleRow;
+ private Object javaObj;
+
+ @Override
+ public void map(LongWritable key, Text value, Context context)
+ throws IOException, InterruptedException {
+ // value should contain "word count"
+ String[] wdct = value.toString().split(" ");
+ if (wdct.length != 2) {
+ // LOG the error
+ return;
+ }
+
+ byte[] word = wdct[0].getBytes();
+ bytesKey.set(word, 0, word.length);
+ System.out.println("word: " + new String(word));
+ tupleRow.set(0, new String(word));
+ tupleRow.set(1, Integer.parseInt(wdct[1]));
+ System.out.println("count: " + Integer.parseInt(wdct[1]));
+
+ // This key has to be created by user
+ /*
+ * Tuple userKey = new DefaultTuple(); userKey.append(new String(word));
+ * userKey.append(Integer.parseInt(wdct[1]));
+ */
+ System.out.println("in map, sortkey: " + sortKey);
+ Tuple userKey = new DefaultTuple();
+ if (sortKey.equalsIgnoreCase("word,count")) {
+ userKey.append(new String(word));
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("count")) {
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("word")) {
+ userKey.append(new String(word));
+ }
+
+ try {
+
+ /* New M/R Interface */
+ /* Converts user key to zebra BytesWritable key */
+ /* using sort key expr tree */
+ /* Returns a java base object */
+ /* Done for each user key */
+
+ bytesKey = BasicTableOutputFormat.getSortKey(javaObj, userKey);
+ } catch (Exception e) {
+
+ }
+
+ context.write(bytesKey, tupleRow);
+ }
+
+ @Override
+ public void setup(Context context) {
+ bytesKey = new BytesWritable();
+ sortKey = context.getConfiguration().get("sortKey");
+ try {
+ Schema outSchema = BasicTableOutputFormat.getSchema(context);
+ tupleRow = TypesUtils.createTuple(outSchema);
+ javaObj = BasicTableOutputFormat.getSortKeyGenerator(context);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ } catch (org.apache.hadoop.zebra.parser.ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ }
+
+ static class ReduceClass extends
+ Reducer<BytesWritable, Tuple, BytesWritable, Tuple> {
+ Tuple outRow;
+
+ public void reduce(BytesWritable key, Iterator<Tuple> values, Context context)
+ throws IOException, InterruptedException {
+ try {
+ for (; values.hasNext();) {
+ context.write(key, values.next());
+ }
+ } catch (ExecException e) {
+ e.printStackTrace();
+ }
+ }
+
+ }
+
+ static class OutputPartitionerClass extends ZebraOutputPartition {
+
+ @Override
+ public int getOutputPartition(BytesWritable key, Tuple value) throws IndexOutOfBoundsException, ExecException{
+
+ // System.out.println(this.jobConf);
+ value.get(2);
+ Assert.fail("int try, should have thrown exception");
+ return 0;
+ }
+
+ }
+
+ public void runMR(String sortKey, Path...paths) throws ParseException,
+ IOException, Exception, org.apache.hadoop.zebra.parser.ParseException {
+
+ Job job = new Job();
+ job.setJobName("tableMRSample");
+ Configuration conf = job.getConfiguration();
+ conf.set("table.output.tfile.compression", "gz");
+ conf.set("sortKey", sortKey);
+ // input settings
+ job.setInputFormatClass(TextInputFormat.class);
+ job.setMapperClass(TestMultipleOutputs3TypedApi.MapClass.class);
+ job.setMapOutputKeyClass(BytesWritable.class);
+ job.setMapOutputValueClass(ZebraTuple.class);
+ FileInputFormat.setInputPaths(job, inputPath);
+
+ //TODO: need to find a replacement
+ //job.setNumMapTasks(1);
+
+ // output settings
+
+ job.setOutputFormatClass(BasicTableOutputFormat.class);
+
+ String schema = "word:string, count:int";
+ String storageHint = "[word];[count]";
+ BasicTableOutputFormat.setMultipleOutputs(job,
+ TestMultipleOutputs3TypedApi.OutputPartitionerClass.class, paths);
+ ZebraSchema zSchema = ZebraSchema.createZebraSchema(schema);
+ ZebraStorageHint zStorageHint = ZebraStorageHint
+ .createZebraStorageHint(storageHint);
+ ZebraSortInfo zSortInfo = ZebraSortInfo.createZebraSortInfo(sortKey, null);
+ BasicTableOutputFormat.setStorageInfo(job, zSchema, zStorageHint,
+ zSortInfo);
+
+ job.setNumReduceTasks(1);
+ job.submit();
+ job.waitForCompletion( true );
+ BasicTableOutputFormat.close( job );
+ }
+
+ public static void main(String[] args) throws ParseException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ TestMultipleOutputs3TypedApi test = new TestMultipleOutputs3TypedApi();
+ TestMultipleOutputs3TypedApi.setUpOnce();
+ test.test1();
+
+ }
+}
Added: hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs4.java
URL: http://svn.apache.org/viewvc/hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs4.java?rev=909667&view=auto
==============================================================================
--- hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs4.java (added)
+++ hadoop/pig/branches/load-store-redesign/contrib/zebra/src/test/org/apache/hadoop/zebra/mapreduce/TestMultipleOutputs4.java Sat Feb 13 00:06:15 2010
@@ -0,0 +1,665 @@
+/**
+ * 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.zebra.mapreduce;
+
+import java.io.BufferedWriter;
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.Iterator;
+import java.util.StringTokenizer;
+
+import junit.framework.Assert;
+
+import org.apache.hadoop.conf.Configuration;
+import org.apache.hadoop.fs.FSDataOutputStream;
+import org.apache.hadoop.fs.FileSystem;
+import org.apache.hadoop.fs.LocalFileSystem;
+import org.apache.hadoop.fs.Path;
+import org.apache.hadoop.fs.RawLocalFileSystem;
+import org.apache.hadoop.io.BytesWritable;
+import org.apache.hadoop.io.LongWritable;
+import org.apache.hadoop.io.Text;
+import org.apache.hadoop.mapreduce.Job;
+import org.apache.hadoop.mapreduce.Mapper;
+import org.apache.hadoop.mapreduce.Reducer;
+import org.apache.hadoop.mapreduce.lib.input.FileInputFormat;
+import org.apache.hadoop.mapreduce.lib.input.TextInputFormat;
+import org.apache.hadoop.zebra.mapreduce.BasicTableOutputFormat;
+import org.apache.hadoop.zebra.mapreduce.ZebraOutputPartition;
+import org.apache.hadoop.zebra.parser.ParseException;
+import org.apache.hadoop.zebra.schema.Schema;
+import org.apache.hadoop.zebra.types.TypesUtils;
+import org.apache.hadoop.zebra.types.ZebraTuple;
+import org.apache.pig.ExecType;
+import org.apache.pig.PigServer;
+import org.apache.pig.backend.executionengine.ExecException;
+import org.apache.pig.backend.hadoop.datastorage.ConfigurationUtil;
+import org.apache.pig.data.Tuple;
+import org.apache.pig.test.MiniCluster;
+import org.junit.BeforeClass;
+import org.junit.Test;
+
+/**
+ * This is a sample a complete MR sample code for Table. It doens't contain
+ * 'read' part. But, it should be similar and easier to write. Refer to test
+ * cases in the same directory.
+ *
+ * Assume the input files contain rows of word and count, separated by a space:
+ *
+ * <pre>
+ * us 2
+ * japan 2
+ * india 4
+ * us 2
+ * japan 1
+ * india 3
+ * nouse 5
+ * nowhere 4
+ *
+ *
+ */
+public class TestMultipleOutputs4 {
+
+ static String inputPath;
+ static String inputFileName = "multi-input.txt";
+ protected static ExecType execType = ExecType.LOCAL;
+ private static MiniCluster cluster;
+ protected static PigServer pigServer;
+ // private static Path pathWorking, pathTable1, path2, path3,
+ // pathTable4, pathTable5;
+ private static Configuration conf;
+ public static String sortKey = null;
+
+ private static FileSystem fs;
+
+ private static String zebraJar;
+ private static String whichCluster;
+ private static String multiLocs;
+ private static String strTable1 = null;
+ private static String strTable2 = null;
+ private static String strTable3 = null;
+
+ @BeforeClass
+ public static void setUpOnce() throws IOException {
+ if (System.getenv("hadoop.log.dir") == null) {
+ String base = new File(".").getPath(); // getAbsolutePath();
+ System
+ .setProperty("hadoop.log.dir", new Path(base).toString() + "./logs");
+ }
+
+ if (System.getProperty("whichCluster") == null) {
+ System.setProperty("whichCluster", "miniCluster");
+ System.out.println("should be called");
+ whichCluster = System.getProperty("whichCluster");
+ } else {
+ whichCluster = System.getProperty("whichCluster");
+ }
+
+ System.out.println("clusterddddd: " + whichCluster);
+ System.out.println(" get env hadoop home: " + System.getenv("HADOOP_HOME"));
+ System.out.println(" get env user name: " + System.getenv("USER"));
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System
+ .getenv("HADOOP_HOME") == null)) {
+ System.out.println("Please set HADOOP_HOME");
+ System.exit(0);
+ }
+
+ conf = new Configuration();
+
+ if ((whichCluster.equalsIgnoreCase("realCluster") && System.getenv("USER") == null)) {
+ System.out.println("Please set USER");
+ System.exit(0);
+ }
+ zebraJar = System.getenv("HADOOP_HOME") + "/lib/zebra.jar";
+
+ File file = new File(zebraJar);
+ if (!file.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put zebra.jar at hadoop_home/lib");
+ System.exit(0);
+ }
+
+ // set inputPath and output path
+ String workingDir = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ inputPath = new String("/user/" + System.getenv("USER") + "/"
+ + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String("/user/" + System.getenv("USER") + "/" + "us"
+ + "," + "/user/" + System.getenv("USER") + "/" + "india" + ","
+ + "/user/" + System.getenv("USER") + "/" + "japan");
+ fs = new Path(inputPath).getFileSystem(conf);
+
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ inputPath = new String(workingDir + "/" + inputFileName);
+ System.out.println("inputPath: " + inputPath);
+ multiLocs = new String(workingDir + "/" + "us" + "," + workingDir + "/"
+ + "india" + "," + workingDir + "/" + "japan");
+ }
+ writeToFile(inputPath);
+ // check inputPath existence
+ File inputFile = new File(inputPath);
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("Please put inputFile in hdfs: " + inputPath);
+ // System.exit(0);
+ }
+ if (!inputFile.exists() && whichCluster.equalsIgnoreCase("miniCluster")) {
+ System.out
+ .println("Please put inputFile under workingdir. working dir is : "
+ + workingDir);
+ System.exit(0);
+ }
+
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ pigServer = new PigServer(ExecType.MAPREDUCE, ConfigurationUtil
+ .toProperties(conf));
+ pigServer.registerJar(zebraJar);
+
+ }
+
+ if (whichCluster.equalsIgnoreCase("miniCluster")) {
+ if (execType == ExecType.MAPREDUCE) {
+ cluster = MiniCluster.buildCluster();
+ pigServer = new PigServer(ExecType.MAPREDUCE, cluster.getProperties());
+ fs = cluster.getFileSystem();
+
+ } else {
+ pigServer = new PigServer(ExecType.LOCAL);
+ }
+ }
+ }
+
+ public String getCurrentMethodName() {
+ ByteArrayOutputStream baos = new ByteArrayOutputStream();
+ PrintWriter pw = new PrintWriter(baos);
+ (new Throwable()).printStackTrace(pw);
+ pw.flush();
+ String stackTrace = baos.toString();
+ pw.close();
+
+ StringTokenizer tok = new StringTokenizer(stackTrace, "\n");
+ tok.nextToken(); // 'java.lang.Throwable'
+ tok.nextToken(); // 'at ...getCurrentMethodName'
+ String l = tok.nextToken(); // 'at ...<caller to getCurrentRoutine>'
+ // Parse line 3
+ tok = new StringTokenizer(l.trim(), " <(");
+ String t = tok.nextToken(); // 'at'
+ t = tok.nextToken(); // '...<caller to getCurrentRoutine>'
+ StringTokenizer st = new StringTokenizer(t, ".");
+ String methodName = null;
+ while (st.hasMoreTokens()) {
+ methodName = st.nextToken();
+ }
+ return methodName;
+ }
+
+ public Path generateOutPath(String currentMethod) {
+ Path outPath = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ outPath = new Path("/user/" + System.getenv("USER") + "/multiOutput/"
+ + currentMethod);
+ } else {
+ String workingDir = fs.getWorkingDirectory().toString().split(":")[1];
+ outPath = new Path(workingDir + "/multiOutput/" + currentMethod);
+ System.out.println("output file: " + outPath.toString());
+ }
+ return outPath;
+ }
+
+ public void removeDir(Path outPath) throws IOException {
+ String command = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ command = System.getenv("HADOOP_HOME") + "/bin/hadoop fs -rmr "
+ + outPath.toString();
+ } else {
+ StringTokenizer st = new StringTokenizer(outPath.toString(), ":");
+ int count = 0;
+ String file = null;
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (count == 2)
+ file = token;
+ }
+ command = "rm -rf " + file;
+ }
+ Runtime runtime = Runtime.getRuntime();
+ Process proc = runtime.exec(command);
+ int exitVal = -1;
+ try {
+ exitVal = proc.waitFor();
+ } catch (InterruptedException e) {
+ System.err.println(e);
+ }
+
+ }
+ public static void writeToFile (String inputFile) throws IOException{
+ if (whichCluster.equalsIgnoreCase("miniCluster")){
+ FileWriter fstream = new FileWriter(inputFile);
+ BufferedWriter out = new BufferedWriter(fstream);
+ out.write("us 2\n");
+ out.write("japan 2\n");
+ out.write("india 4\n");
+ out.write("us 2\n");
+ out.write("japan 1\n");
+ out.write("india 3\n");
+ out.write("nouse 5\n");
+ out.write("nowhere 4\n");
+ out.close();
+ }
+ if (whichCluster.equalsIgnoreCase("realCluster")){
+ FSDataOutputStream fout = fs.create(new Path (inputFile));
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 2\n");
+ fout.writeBytes("india 4\n");
+ fout.writeBytes("us 2\n");
+ fout.writeBytes("japan 1\n");
+ fout.writeBytes("india 3\n");
+ fout.writeBytes("nouse 5\n");
+ fout.writeBytes("nowhere 4\n");
+ fout.close();
+ }
+ }
+
+ public static void getTablePaths(String myMultiLocs) {
+ StringTokenizer st = new StringTokenizer(myMultiLocs, ",");
+
+ // get how many tokens inside st object
+ System.out.println("tokens count: " + st.countTokens());
+ int count = 0;
+
+ // iterate st object to get more tokens from it
+ while (st.hasMoreElements()) {
+ count++;
+ String token = st.nextElement().toString();
+ if (whichCluster.equalsIgnoreCase("miniCluster")) {
+ System.out.println("in mini, token: "+token);
+ //in mini, token: file:/homes/<uid>/grid/multipleoutput/pig-table/contrib/zebra/ustest3
+ if (count == 1)
+ strTable1 = token;
+ if (count == 2)
+ strTable2 = token;
+ if (count == 3)
+ strTable3 = token;
+ }
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ System.out.println("in real, token: "+token);
+ //in real, token: /user/hadoopqa/ustest3
+ //note: no prefix file: in real cluster
+ if (count == 1)
+ strTable1 = token;
+ if (count == 2)
+ strTable2 = token;
+ if (count == 3)
+ strTable3 = token;
+ }
+
+ }
+ }
+ public static void checkTableExists(boolean expected, String strDir) throws IOException{
+
+ File theDir = null;
+ boolean actual = false;
+ if (whichCluster.equalsIgnoreCase("miniCluster")){
+ theDir = new File(strDir.split(":")[1]);
+ actual = theDir.exists();
+
+ }
+ if (whichCluster.equalsIgnoreCase("realCluster")){
+ theDir = new File(strDir.split(":")[0]);
+ actual = fs.exists(new Path (theDir.toString()));
+ }
+ System.out.println("the dir : "+ theDir.toString());
+ if (actual != expected){
+ Assert.fail("dir exists or not is different from what expected.");
+ }
+ }
+ public static void checkTable(String myMultiLocs) throws IOException {
+ System.out.println("myMultiLocs:" + myMultiLocs);
+ System.out.println("sorgetTablePathst key:" + sortKey);
+
+ getTablePaths(myMultiLocs);
+ String query1 = null;
+ String query2 = null;
+
+ if (strTable1 != null) {
+
+ query1 = "records1 = LOAD '" + strTable1
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+ if (strTable2 != null) {
+ query2 = "records2 = LOAD '" + strTable2
+ + "' USING org.apache.hadoop.zebra.pig.TableLoader();";
+ }
+
+ int count1 = 0;
+ int count2 = 0;
+
+ if (query1 != null) {
+ System.out.println(query1);
+ pigServer.registerQuery(query1);
+ Iterator<Tuple> it = pigServer.openIterator("records1");
+ while (it.hasNext()) {
+ count1++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+ // test 1 us table
+ if (query1.contains("test1") || query1.contains("test2")|| query1.contains("test3")) {
+
+ if (count1 == 1) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count1 == 2) {
+ Assert.assertEquals("us", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ } // test1, test2
+
+ }// while
+ if (query1.contains("test1") || query1.contains("test2")
+ || query1.contains("test3")) {
+ Assert.assertEquals(2, count1);
+ }
+ }// if query1 != null
+
+ if (query2 != null) {
+ pigServer.registerQuery(query2);
+ Iterator<Tuple> it = pigServer.openIterator("records2");
+
+ while (it.hasNext()) {
+ count2++;
+ Tuple RowValue = it.next();
+ System.out.println(RowValue);
+
+ // if test1 other table
+ if (query2.contains("test1")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test1
+ // if test2 other table
+ if (query2.contains("test2")) {
+ if (count2 == 1) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+
+ if (count1 == 5) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ }// if test2
+ // if test3 other table
+ if (query2.contains("test3")) {
+ if (count2 == 1) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(1, RowValue.get(1));
+ }
+ if (count2 == 2) {
+ Assert.assertEquals("japan", RowValue.get(0));
+ Assert.assertEquals(2, RowValue.get(1));
+ }
+ if (count2 == 3) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(3, RowValue.get(1));
+ }
+ if (count2 == 4) {
+ Assert.assertEquals("india", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 5) {
+ Assert.assertEquals("nowhere", RowValue.get(0));
+ Assert.assertEquals(4, RowValue.get(1));
+ }
+ if (count1 == 6) {
+ Assert.assertEquals("nouse", RowValue.get(0));
+ Assert.assertEquals(5, RowValue.get(1));
+ }
+
+ }// if test3
+
+ }// while
+ if (query2.contains("test1") || query2.contains("test2")
+ || query2.contains("test3")) {
+ Assert.assertEquals(6, count2);
+ }
+ }// if query2 != null
+
+ }
+
+
+ @Test
+ public void test1() throws ParseException, IOException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ /*
+ * test combine sort keys
+ */
+ System.out.println("******Start testcase: " + getCurrentMethodName());
+ sortKey = "word,count";
+ System.out.println("hello sort on word and count");
+ String methodName = getCurrentMethodName();
+ String myMultiLocs = null;
+ if (whichCluster.equalsIgnoreCase("realCluster")) {
+ myMultiLocs = new String("/user/" + System.getenv("USER") + "/" + "a");
+ } else {
+ RawLocalFileSystem rawLFS = new RawLocalFileSystem();
+ fs = new LocalFileSystem(rawLFS);
+ myMultiLocs = new String(fs.getWorkingDirectory() + "/" + "a");
+ }
+ getTablePaths(myMultiLocs);
+ removeDir(new Path(strTable1));
+ runMR(myMultiLocs, sortKey);
+ checkTableExists(true, strTable1);
+ System.out.println("DONE test " + getCurrentMethodName());
+
+ }
+
+
+ static class MapClass extends
+ Mapper<LongWritable, Text, BytesWritable, Tuple> {
+ private BytesWritable bytesKey;
+ private Tuple tupleRow;
+ private Object javaObj;
+
+ @Override
+ public void map(LongWritable key, Text value, Context context)
+ throws IOException, InterruptedException {
+ // value should contain "word count"
+ String[] wdct = value.toString().split(" ");
+ if (wdct.length != 2) {
+ // LOG the error
+ return;
+ }
+
+ byte[] word = wdct[0].getBytes();
+ bytesKey.set(word, 0, word.length);
+ System.out.println("word: " + new String(word));
+ tupleRow.set(0, new String(word));
+ tupleRow.set(1, Integer.parseInt(wdct[1]));
+ System.out.println("count: " + Integer.parseInt(wdct[1]));
+
+ // This key has to be created by user
+ /*
+ * Tuple userKey = new DefaultTuple(); userKey.append(new String(word));
+ * userKey.append(Integer.parseInt(wdct[1]));
+ */
+ System.out.println("in map, sortkey: " + sortKey);
+ Tuple userKey = new ZebraTuple();
+ if (sortKey.equalsIgnoreCase("word,count")) {
+ userKey.append(new String(word));
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("count")) {
+ userKey.append(Integer.parseInt(wdct[1]));
+ }
+
+ if (sortKey.equalsIgnoreCase("word")) {
+ userKey.append(new String(word));
+ }
+
+ try {
+
+ /* New M/R Interface */
+ /* Converts user key to zebra BytesWritable key */
+ /* using sort key expr tree */
+ /* Returns a java base object */
+ /* Done for each user key */
+
+ bytesKey = BasicTableOutputFormat.getSortKey(javaObj, userKey);
+ } catch (Exception e) {
+
+ }
+
+ context.write(bytesKey, tupleRow);
+ }
+
+ @Override
+ public void setup(Context context) {
+ bytesKey = new BytesWritable();
+ sortKey = context.getConfiguration().get("sortKey");
+ try {
+ Schema outSchema = BasicTableOutputFormat.getSchema(context);
+ tupleRow = TypesUtils.createTuple(outSchema);
+ javaObj = BasicTableOutputFormat.getSortKeyGenerator(context);
+ } catch (IOException e) {
+ throw new RuntimeException(e);
+ } catch (org.apache.hadoop.zebra.parser.ParseException e) {
+ throw new RuntimeException(e);
+ }
+ }
+
+ }
+
+ static class ReduceClass extends
+ Reducer<BytesWritable, Tuple, BytesWritable, Tuple> {
+ Tuple outRow;
+
+ public void reduce(BytesWritable key, Iterator<Tuple> values, Context context)
+ throws IOException, InterruptedException {
+ try {
+ for (; values.hasNext();) {
+ context.write(key, values.next());
+ }
+ } catch (ExecException e) {
+ e.printStackTrace();
+ }
+ }
+
+ }
+
+ static class OutputPartitionerClass extends ZebraOutputPartition {
+
+ @Override
+ public int getOutputPartition(BytesWritable key, Tuple value) throws ExecException {
+
+ return 0;
+ }
+
+ }
+
+ public void runMR(String myMultiLocs, String sortKey) throws ParseException,
+ IOException, Exception, org.apache.hadoop.zebra.parser.ParseException {
+
+ Job job = new Job();
+ job.setJobName("tableMRSample");
+ Configuration conf = job.getConfiguration();
+ conf.set("table.output.tfile.compression", "gz");
+ conf.set("sortKey", sortKey);
+ // input settings
+ job.setInputFormatClass(TextInputFormat.class);
+ job.setMapperClass(TestMultipleOutputs4.MapClass.class);
+ job.setMapOutputKeyClass(BytesWritable.class);
+ job.setMapOutputValueClass(ZebraTuple.class);
+ FileInputFormat.setInputPaths(job, inputPath);
+
+ // TODO: find a replacement
+ //job.setNumMapTasks(1);
+
+ // output settings
+
+ job.setOutputFormatClass(BasicTableOutputFormat.class);
+ BasicTableOutputFormat.setMultipleOutputs(job, myMultiLocs,
+ TestMultipleOutputs4.OutputPartitionerClass.class);
+
+ // set the logical schema with 2 columns
+ BasicTableOutputFormat.setSchema(job, "word:string, count:int");
+ // for demo purposes, create 2 physical column groups
+ BasicTableOutputFormat.setStorageHint(job, "[word];[count]");
+ BasicTableOutputFormat.setSortInfo(job, sortKey);
+ System.out.println("in runMR, sortkey: " + sortKey);
+ // set map-only job.
+ job.setNumReduceTasks(1);
+ job.submit();
+ job.waitForCompletion( true );
+ BasicTableOutputFormat.close( job );
+ }
+
+ public static void main(String[] args) throws ParseException,
+ org.apache.hadoop.zebra.parser.ParseException, Exception {
+ TestMultipleOutputs4 test = new TestMultipleOutputs4();
+ TestMultipleOutputs4.setUpOnce();
+
+ test.test1();
+ }
+}