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package kmeans;import java.io.BufferedReader;import java.io.DataInput;import java.io.DataOutput;import java.io.File;import java.io.FileReader;import java.io.IOException;import java.util.ArrayList;import java.util.Iterator;import java.util.List;import org.apache.hadoop.conf.Configuration;import org.apache.hadoop.conf.Configured;import org.apache.hadoop.fs.FileSystem;import org.apache.hadoop.fs.Path;import org.apache.hadoop.io.DoubleWritable;import org.apache.hadoop.io.LongWritable;import org.apache.hadoop.io.NullWritable;import org.apache.hadoop.io.Text;import org.apache.hadoop.io.Writable;import org.apache.hadoop.io.WritableComparable;import org.apache.hadoop.io.WritableFactories;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.mapreduce.lib.output.FileOutputFormat;import org.apache.hadoop.util.Tool;import org.apache.hadoop.util.ToolRunner;import com.google.gson.Gson;/*** * KMeans算法的MapReduce实现 * @author chenjie */public class KMeans extends Configured implements Tool { /** * 要聚类的簇数量 */ public static int K = 3; /*** * 迭代次数 */ public static int REPEAT = 10; /*** * 标记是否是第一次迭代（第一次从输入文件里随机选择聚类中心；其他次则从上一次的输出文件读取聚类中心） */ public static boolean firstTime = true; /** * 输入文件名 */ public static String FILE = "/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt"; /*** * 输出文件夹 */ public static String REDUCE_OUTPUT_DIR = "/media/chenjie/0009418200012FF3/ubuntu/kmeans/"; /*** * 输出文件 */ public static String REDUCE_OUTPUT = REDUCE_OUTPUT_DIR + "part-r-00000"; /*** * 缓存的簇中心集合 */ public static List > cachedCenters = new ArrayList >(); /*** * 从文件中读取簇中心向量集合 * @param path 文件路径 * @param K 中心点个数 * @return 从文件中读取簇中心向量集合 */ private static List > readRandomCenterFromInputFile(String path,int K) { List > list = new ArrayList >(); try{ BufferedReader br = new BufferedReader(new FileReader(path));//构造一个BufferedReader类来读取文件 String s = null; int count = 0;//记录已经读取到的点的个数 while((s = br.readLine())!=null && count < K){//使用readLine方法，一次读一行 System.out.println("readRandomCenterFromInputFile读取一行:" + s); count ++; String tokens[] = s.split(" ");//输入文件中，点的分量坐标以空格隔开 ArrayList vector = new ArrayList ();//点的分量集合中 for(String token : tokens) { vector.add(Double.valueOf(token));//将点的各个分量坐标存到点的分量集合中 } list.add(vector);//将点添加到点集合 } br.close(); }catch(Exception e){ e.printStackTrace(); return list; } return list; } /*** * 映射器，将文本文件作为输入。 * 写出将由规约器处理的键值对，其中键是离输入点最近的簇中心，值是一个d维向量。键和值都用自定义类型ListWritable表示 * @author chenjie */ public static class KMeansMapper extends Mapper { /*** * 在map之前调用，从文件中读取簇中心向量集合从而加载到内存中 */ @Override protected void setup( Mapper .Context context)throws IOException, InterruptedException { super.setup(context); if(firstTime)//如果是第一次迭代 { KMeans.cachedCenters = readRandomCenterFromInputFile(FILE,K);//从输入文件中得到随机K个点 firstTime = false;//不再是第一次迭代 } System.out.println("----------setup------------"); System.out.println("----------centers------------"); for(ArrayList vector : cachedCenters) { System.out.println(vector);//输出各个点的坐标 } } /*** * key为行号,value为每一行的内容，即每一个点的坐标。context为hadoop上下文 */ @Override protected void map(LongWritable key,Text value,Context context) throws IOException, InterruptedException { System.out.println("map value=" + value.toString()); ArrayList valueVector = getVectorFromString(value.toString());//得到这行对应的这个点的坐标 System.out.println("valueVector=" + valueVector.toString()); ArrayList nearest = null;//保存与输入点有最小距离的簇中心的坐标 double nearestDistance = Double.MAX_VALUE;//保存这个点到各个簇中心的最近距离 for(ArrayList center : cachedCenters)//对于每个簇中心 { double distance = calculateDistance(center,valueVector);//计算这个点到这个簇中心的距离 if(nearest == null)//如果之前没有与输入点有最小距离的簇中心，则这个簇中心是目前与输入点有最小距离的簇中心 { nearest = center;//更新与输入点有最小距离的簇中心 nearestDistance = distance;//更新这个点到各个簇中心的最近距离 } else//如果之前有与输入点有最小距离的簇中心，则将[这个点到这个簇中心的距离]与[这个点到各个簇中心的最近距离]进行比较 { if(distance < nearestDistance )//[这个点到这个簇中心的距离]比[这个点到各个簇中心的最近距离]还要小，则说明发现新的簇中心，要更新 { nearest = center; nearestDistance = distance; } } } if(nearest != null)//与输入点有最小距离的簇中心存在，则将其输出给combine处理 { List nearestWritableList = new ArrayList (); //由于List 不能作为MapReduce的键、值类型，因此要自定义一个List 类型 for(Double d : nearest) { nearestWritableList.add(new DoubleWritable(d));//讲簇中心的各个分量进行DoubleWritable包装 } ListWritable outputkey = new ListWritable(nearestWritableList); List valueWritableList = new ArrayList (); for(Double d : valueVector) { valueWritableList.add(new DoubleWritable(d)); } ListWritable outputvalue = new ListWritable(valueWritableList); System.out.println("map 生成:" + outputkey + "," + outputvalue); context.write(outputkey, outputvalue); } } /** * * @param vector1 向量1:(X1,X2,...) * @param vector2 向量2:(Y1,Y2,...) * @return 计算两个向量的欧几里德距离:d=sqrt((X1-Y1)^2+(X2-Y2)^2+...) */ private double calculateDistance(ArrayList vector1, ArrayList vector2) { double sum = 0.0; int length = vector1.size(); for(int i=0;i getVectorFromString(String string) { String tokens[] = string.split(" "); ArrayList vector = new ArrayList (); for(String value : tokens) { vector.add(Double.valueOf(value)); } return vector; } } /*** * 组合器，组合映射任务的中间数据 * 累加向量各个维的值 * @author chenjie */ public static class KMeansCombiner extends Reducer { @Override protected void reduce(ListWritable key,Iterable values,Context context) throws IOException, InterruptedException { System.out.println("----------------------KMeansCombiner---------------------"); System.out.println("key=" + key); System.out.println("values:" ); ArrayList sum = new ArrayList (); //sum向量用来保存key值相同的所有value的向量分量之和 //sum0=x0+y0 //sum1=x1+y1 sum.add(0D); sum.add(0D); int count = 0;//保存values的长度 for(ListWritable value : values) { count ++; System.out.println("value=" + value); if(value.get().isEmpty()) continue; List writables = value.get(); for(int i=0;i sumWritableList = new ArrayList (); for(Double d : sum) { sumWritableList.add(new DoubleWritable(d / count));//将各个分量取平均值 } System.out.println("sumWritableList=" + sumWritableList); ListWritable outputValue = new ListWritable(sumWritableList); context.write(key, outputValue); } } public static class KMeansReducer extends Reducer { @Override protected void reduce(ListWritable key,Iterable values,Context context)throws IOException, InterruptedException { System.out.println("----------------------reduce---------------------"); System.out.println("key=" + key); System.out.println("values:"); ArrayList newCenter = new ArrayList ();//新簇中心坐标分量集合 newCenter.add(0D);//初始化为0 newCenter.add(0D);//初始化为0 int count = 0; for(ListWritable value : values) { System.out.println(value); count ++; for(int i=0;i newCenterWritableList = new ArrayList (); for(Double d : newCenter) { newCenterWritableList.add(new DoubleWritable(d)); } ListWritable outputValue = new ListWritable(newCenterWritableList); System.out.println("reduce生成:" + key + "|" + outputValue); context.write(outputValue,NullWritable.get() ); } } public static void main(String[] args) throws Exception { getCJKMeansConf(); args = new String[2]; args[0] = FILE; args[1] = REDUCE_OUTPUT_DIR; while(REPEAT > 0) { int jobStatus = submitJob(args); if(jobStatus == 0) { KMeans.cachedCenters = readRandomCenterFromInputFile(REDUCE_OUTPUT,K);//每次reduce结束后，将reduce的结果缓存起来 } REPEAT --; } System.out.println("----------------------------------------KMeans聚类结果--------------------------------------"); for(ArrayList point : KMeans.cachedCenters) { System.out.println(point); } } public static int submitJob(String[] args) throws Exception { int jobStatus = ToolRunner.run(new KMeans(), args); return jobStatus; } @SuppressWarnings("deprecation") @Override public int run(String[] args) throws Exception { Configuration conf = getConf(); Job job = new Job(conf); job.setJobName("Kmeans"); job.setInputFormatClass(TextInputFormat.class); job.setOutputFormatClass(org.apache.hadoop.mapreduce.lib.output.TextOutputFormat.class); job.setOutputKeyClass(ListWritable.class); job.setOutputValueClass(ListWritable.class); job.setMapOutputKeyClass(ListWritable.class); job.setMapOutputValueClass(ListWritable.class); job.setMapperClass(KMeansMapper.class); job.setReducerClass(KMeansReducer.class); job.setCombinerClass(KMeansCombiner.class); FileInputFormat.setInputPaths(job, new Path(args[0])); FileOutputFormat.setOutputPath(job, new Path(args[1])); FileSystem fs = FileSystem.get(conf); Path outPath = new Path(args[1]); if(fs.exists(outPath)) { fs.delete(outPath, true); } boolean status = job.waitForCompletion(true); return status ? 0 : 1; } /*** * 自定义向量类，可以作为MapReduce的键和值 * @author chenjie */ public static class ListWritable implements Writable , WritableComparable { private Class valueClass; @SuppressWarnings("rawtypes") private Class listClass; private List values; public ListWritable() { } public ListWritable(List values) { listClass = values.getClass(); valueClass = values.get(0).getClass(); this.values = values; } public Class getValueClass() { return valueClass; } @SuppressWarnings("rawtypes") public Class getListClass() { return listClass; } public void set(List values) { this.values = values; } public List get() { return values; } @SuppressWarnings({ "unchecked", "rawtypes" }) public void readFields(DataInput in) throws IOException { String listClass = in.readUTF(); try { this.listClass = (Class ) Class.forName(listClass); String valueClass = in.readUTF(); this.valueClass = (Class ) Class .forName(valueClass); } catch (ClassNotFoundException e1) { e1.printStackTrace(); } int size = in.readInt(); // construct values try { values = this.listClass.newInstance(); } catch (InstantiationException e) { e.printStackTrace(); } catch (IllegalAccessException e) { e.printStackTrace(); } for (int i = 0; i < size; i++) { Writable value = WritableFactories.newInstance(this.valueClass); value.readFields(in); // read a value values.add(value); // store it in values } } public void write(DataOutput out) throws IOException { out.writeUTF(listClass.getName()); out.writeUTF(valueClass.getName()); out.writeInt(values.size()); // write values Iterator iterator = values.iterator(); while (iterator.hasNext()) { iterator.next().write(out); } } public int size() { return values.size(); } public boolean isEmpty() { return values==null? true :false; } @Override public int compareTo(ListWritable o) { int flag = 0; for(int i=0;i 输入:kmeans_input_file.txt
1.0 2.01.0 3.01.0 4.02.0 5.02.0 6.02.0 7.02.0 8.03.0 100.03.0 101.03.0 102.03.0 103.03.0 104.0 输出: 2017-11-18 13:40:59,061 INFO [localfetcher#4] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#4 about to shuffle output of map attempt_local1325636158_0004_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:40:59,061 INFO [localfetcher#4] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local1325636158_0004_m_000000_02017-11-18 13:40:59,061 INFO [localfetcher#4] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:40:59,062 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:40:59,062 INFO [pool-13-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:40:59,063 INFO [pool-13-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:40:59,064 INFO [pool-13-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:40:59,064 INFO [pool-13-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:40:59,064 INFO [pool-13-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:40:59,065 INFO [pool-13-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:40:59,065 INFO [pool-13-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:40:59,065 INFO [pool-13-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:40:59,066 INFO [pool-13-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:40:59,066 INFO [pool-13-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 2.5values:1.0 3.0reduce生成:1.0 2.5|1.0 3.0----------------------reduce---------------------key=1.8 6.0values:2.0 6.5reduce生成:1.8 6.0|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:40:59,073 INFO [pool-13-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local1325636158_0004_r_000000_0 is done. And is in the process of committing2017-11-18 13:40:59,075 INFO [pool-13-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:40:59,075 INFO [pool-13-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local1325636158_0004_r_000000_0 is allowed to commit now2017-11-18 13:40:59,077 INFO [pool-13-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local1325636158_0004_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local1325636158_0004_r_0000002017-11-18 13:40:59,077 INFO [pool-13-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:40:59,078 INFO [pool-13-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1325636158_0004_r_000000_0' done.2017-11-18 13:40:59,078 INFO [pool-13-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local1325636158_0004_r_000000_02017-11-18 13:40:59,078 INFO [Thread-101] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:40:59,968 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local1325636158_0004 running in uber mode : false2017-11-18 13:40:59,969 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:40:59,970 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local1325636158_0004 completed successfully2017-11-18 13:40:59,979 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=9264 FILE: Number of bytes written=2077542 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=1292894208 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:00,004 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:00,011 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:00,012 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:00,023 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:00,034 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local1998692281_00052017-11-18 13:41:00,098 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:00,098 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local1998692281_00052017-11-18 13:41:00,098 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:00,100 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:00,102 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:00,102 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local1998692281_0005_m_000000_02017-11-18 13:41:00,103 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:00,104 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:00,167 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:00,167 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:00,167 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:00,167 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:00,167 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:00,168 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:00,171 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:00,172 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:00,172 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:00,172 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:00,172 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:00,176 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:00,179 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local1998692281_0005_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:00,184 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:00,184 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1998692281_0005_m_000000_0' done.2017-11-18 13:41:00,184 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local1998692281_0005_m_000000_02017-11-18 13:41:00,184 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:00,185 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:00,185 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local1998692281_0005_r_000000_02017-11-18 13:41:00,186 INFO [pool-16-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:00,187 INFO [pool-16-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@b0330812017-11-18 13:41:00,187 INFO [pool-16-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:(197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:00,188 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local1998692281_0005_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:00,189 INFO [localfetcher#5] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#5 about to shuffle output of map attempt_local1998692281_0005_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:00,189 INFO [localfetcher#5] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local1998692281_0005_m_000000_02017-11-18 13:41:00,190 INFO [localfetcher#5] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:00,190 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:00,190 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:00,191 INFO [pool-16-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:00,193 INFO [pool-16-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:00,194 INFO [pool-16-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:00,194 INFO [pool-16-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:00,195 INFO [pool-16-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:00,195 INFO [pool-16-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:00,195 INFO [pool-16-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:00,195 INFO [pool-16-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:00,196 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:00,203 INFO [pool-16-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local1998692281_0005_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:00,204 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:00,204 INFO [pool-16-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local1998692281_0005_r_000000_0 is allowed to commit now2017-11-18 13:41:00,206 INFO [pool-16-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local1998692281_0005_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local1998692281_0005_r_0000002017-11-18 13:41:00,207 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:00,207 INFO [pool-16-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1998692281_0005_r_000000_0' done.2017-11-18 13:41:00,207 INFO [pool-16-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local1998692281_0005_r_000000_02017-11-18 13:41:00,207 INFO [Thread-128] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:01,099 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local1998692281_0005 running in uber mode : false2017-11-18 13:41:01,099 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:01,100 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local1998692281_0005 completed successfully2017-11-18 13:41:01,106 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=11828 FILE: Number of bytes written=2598434 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=1503657984 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:01,148 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:01,160 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:01,164 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:01,179 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:01,195 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local2141033359_00062017-11-18 13:41:01,278 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:01,278 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:01,278 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local2141033359_00062017-11-18 13:41:01,279 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:01,286 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:01,286 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local2141033359_0006_m_000000_02017-11-18 13:41:01,288 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:01,288 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:01,354 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:01,354 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:01,355 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:01,355 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:01,355 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:01,356 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:01,359 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:01,359 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:01,359 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:01,359 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:01,360 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:01,363 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:01,364 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local2141033359_0006_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:01,365 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:01,366 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local2141033359_0006_m_000000_0' done.2017-11-18 13:41:01,366 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local2141033359_0006_m_000000_02017-11-18 13:41:01,366 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:01,366 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:01,366 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local2141033359_0006_r_000000_02017-11-18 13:41:01,368 INFO [pool-19-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:01,368 INFO [pool-19-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@693dc0d32017-11-18 13:41:01,369 INFO [pool-19-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java: (197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:01,383 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local2141033359_0006_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:01,388 INFO [localfetcher#6] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#6 about to shuffle output of map attempt_local2141033359_0006_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:01,388 INFO [localfetcher#6] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local2141033359_0006_m_000000_02017-11-18 13:41:01,389 INFO [localfetcher#6] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:01,389 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:01,390 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:01,390 INFO [pool-19-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:01,391 INFO [pool-19-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:01,391 INFO [pool-19-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:01,391 INFO [pool-19-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:01,391 INFO [pool-19-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:01,392 INFO [pool-19-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:01,392 INFO [pool-19-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:01,392 INFO [pool-19-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:01,392 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:01,400 INFO [pool-19-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local2141033359_0006_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:01,401 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:01,401 INFO [pool-19-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local2141033359_0006_r_000000_0 is allowed to commit now2017-11-18 13:41:01,402 INFO [pool-19-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local2141033359_0006_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local2141033359_0006_r_0000002017-11-18 13:41:01,403 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:01,403 INFO [pool-19-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local2141033359_0006_r_000000_0' done.2017-11-18 13:41:01,403 INFO [pool-19-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local2141033359_0006_r_000000_02017-11-18 13:41:01,403 INFO [Thread-155] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:02,279 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local2141033359_0006 running in uber mode : false2017-11-18 13:41:02,280 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:02,281 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local2141033359_0006 completed successfully2017-11-18 13:41:02,288 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=14392 FILE: Number of bytes written=3119326 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=12 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=1714946048 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:02,316 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:02,324 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:02,325 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:02,346 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:02,356 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local382131182_00072017-11-18 13:41:02,419 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:02,419 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local382131182_00072017-11-18 13:41:02,419 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:02,420 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:02,422 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:02,422 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local382131182_0007_m_000000_02017-11-18 13:41:02,423 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:02,424 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:02,491 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:02,491 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:02,491 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:02,492 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:02,492 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:02,492 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:02,495 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:02,495 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:02,495 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:02,495 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:02,495 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:02,500 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:02,500 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local382131182_0007_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:02,502 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:02,502 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local382131182_0007_m_000000_0' done.2017-11-18 13:41:02,502 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local382131182_0007_m_000000_02017-11-18 13:41:02,502 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:02,503 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:02,503 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local382131182_0007_r_000000_02017-11-18 13:41:02,504 INFO [pool-22-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:02,504 INFO [pool-22-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@2c2382492017-11-18 13:41:02,504 INFO [pool-22-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java: (197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:02,505 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local382131182_0007_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:02,508 INFO [localfetcher#7] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#7 about to shuffle output of map attempt_local382131182_0007_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:02,509 INFO [localfetcher#7] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local382131182_0007_m_000000_02017-11-18 13:41:02,509 INFO [localfetcher#7] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:02,512 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:02,512 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:02,512 INFO [pool-22-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:02,514 INFO [pool-22-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:02,514 INFO [pool-22-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:02,514 INFO [pool-22-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:02,515 INFO [pool-22-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:02,515 INFO [pool-22-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:02,515 INFO [pool-22-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:02,515 INFO [pool-22-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:02,516 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:02,523 INFO [pool-22-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local382131182_0007_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:02,524 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:02,524 INFO [pool-22-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local382131182_0007_r_000000_0 is allowed to commit now2017-11-18 13:41:02,525 INFO [pool-22-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local382131182_0007_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local382131182_0007_r_0000002017-11-18 13:41:02,526 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:02,526 INFO [pool-22-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local382131182_0007_r_000000_0' done.2017-11-18 13:41:02,526 INFO [pool-22-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local382131182_0007_r_000000_02017-11-18 13:41:02,526 INFO [Thread-182] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:03,420 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local382131182_0007 running in uber mode : false2017-11-18 13:41:03,420 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:03,421 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local382131182_0007 completed successfully2017-11-18 13:41:03,427 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=16956 FILE: Number of bytes written=3637458 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=1926234112 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:03,478 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:03,482 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:03,483 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:03,508 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:03,520 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local429797569_00082017-11-18 13:41:03,595 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:03,595 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local429797569_00082017-11-18 13:41:03,600 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:03,600 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:03,605 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:03,605 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local429797569_0008_m_000000_02017-11-18 13:41:03,610 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:03,613 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:03,706 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:03,706 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:03,706 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:03,707 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:03,707 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:03,708 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:03,711 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:03,711 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:03,711 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:03,711 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:03,711 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:03,714 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:03,716 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local429797569_0008_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:03,718 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:03,718 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local429797569_0008_m_000000_0' done.2017-11-18 13:41:03,718 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local429797569_0008_m_000000_02017-11-18 13:41:03,719 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:03,720 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:03,720 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local429797569_0008_r_000000_02017-11-18 13:41:03,721 INFO [pool-25-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:03,721 INFO [pool-25-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@4e1feafc2017-11-18 13:41:03,724 INFO [pool-25-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java: (197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:03,724 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local429797569_0008_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:03,725 INFO [localfetcher#8] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#8 about to shuffle output of map attempt_local429797569_0008_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:03,725 INFO [localfetcher#8] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local429797569_0008_m_000000_02017-11-18 13:41:03,726 INFO [localfetcher#8] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:03,726 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:03,726 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:03,726 INFO [pool-25-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:03,728 INFO [pool-25-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:03,728 INFO [pool-25-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:03,728 INFO [pool-25-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:03,728 INFO [pool-25-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:03,728 INFO [pool-25-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:03,729 INFO [pool-25-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:03,729 INFO [pool-25-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:03,729 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:03,736 INFO [pool-25-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local429797569_0008_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:03,738 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:03,738 INFO [pool-25-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local429797569_0008_r_000000_0 is allowed to commit now2017-11-18 13:41:03,739 INFO [pool-25-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local429797569_0008_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local429797569_0008_r_0000002017-11-18 13:41:03,740 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:03,740 INFO [pool-25-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local429797569_0008_r_000000_0' done.2017-11-18 13:41:03,740 INFO [pool-25-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local429797569_0008_r_000000_02017-11-18 13:41:03,740 INFO [Thread-209] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:04,595 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local429797569_0008 running in uber mode : false2017-11-18 13:41:04,596 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:04,597 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local429797569_0008 completed successfully2017-11-18 13:41:04,607 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=19520 FILE: Number of bytes written=4155590 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=2136997888 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:04,641 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:04,648 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:04,649 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:04,660 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:04,684 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local1992574236_00092017-11-18 13:41:04,741 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:04,742 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local1992574236_00092017-11-18 13:41:04,742 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:04,742 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:04,744 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:04,744 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local1992574236_0009_m_000000_02017-11-18 13:41:04,745 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:04,745 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:04,840 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:04,840 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:04,840 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:04,841 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:04,841 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:04,841 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:04,845 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:04,845 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:04,845 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:04,845 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:04,845 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:04,848 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:04,849 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local1992574236_0009_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:04,850 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:04,850 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1992574236_0009_m_000000_0' done.2017-11-18 13:41:04,850 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local1992574236_0009_m_000000_02017-11-18 13:41:04,851 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:04,851 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:04,851 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local1992574236_0009_r_000000_02017-11-18 13:41:04,852 INFO [pool-28-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:04,852 INFO [pool-28-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@2ff229092017-11-18 13:41:04,852 INFO [pool-28-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java: (197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:04,853 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local1992574236_0009_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:04,853 INFO [localfetcher#9] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#9 about to shuffle output of map attempt_local1992574236_0009_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:04,854 INFO [localfetcher#9] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local1992574236_0009_m_000000_02017-11-18 13:41:04,854 INFO [localfetcher#9] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:04,854 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:04,855 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:04,855 INFO [pool-28-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:04,856 INFO [pool-28-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:04,856 INFO [pool-28-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:04,856 INFO [pool-28-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:04,856 INFO [pool-28-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:04,856 INFO [pool-28-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:04,856 INFO [pool-28-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:04,857 INFO [pool-28-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:04,857 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:04,864 INFO [pool-28-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local1992574236_0009_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:04,865 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:04,865 INFO [pool-28-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local1992574236_0009_r_000000_0 is allowed to commit now2017-11-18 13:41:04,866 INFO [pool-28-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local1992574236_0009_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local1992574236_0009_r_0000002017-11-18 13:41:04,867 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:04,867 INFO [pool-28-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1992574236_0009_r_000000_0' done.2017-11-18 13:41:04,867 INFO [pool-28-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local1992574236_0009_r_000000_02017-11-18 13:41:04,867 INFO [Thread-236] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:05,742 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local1992574236_0009 running in uber mode : false2017-11-18 13:41:05,743 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:05,743 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local1992574236_0009 completed successfully2017-11-18 13:41:05,744 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=22084 FILE: Number of bytes written=4676482 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=2326790144 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.02017-11-18 13:41:05,768 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(71)) - Cannot initialize JVM Metrics with processName=JobTracker, sessionId= - already initialized2017-11-18 13:41:05,774 WARN [main] mapreduce.JobResourceUploader (JobResourceUploader.java:uploadFiles(171)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).2017-11-18 13:41:05,775 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 12017-11-18 13:41:05,800 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(199)) - number of splits:12017-11-18 13:41:05,810 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(288)) - Submitting tokens for job: job_local1118063138_00102017-11-18 13:41:05,863 INFO [main] mapreduce.Job (Job.java:submit(1301)) - The url to track the job: http://localhost:8080/2017-11-18 13:41:05,863 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1346)) - Running job: job_local1118063138_00102017-11-18 13:41:05,863 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null2017-11-18 13:41:05,867 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter2017-11-18 13:41:05,869 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks2017-11-18 13:41:05,869 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local1118063138_0010_m_000000_02017-11-18 13:41:05,870 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:05,870 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(753)) - Processing split: file:/media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt:0+1062017-11-18 13:41:05,956 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1202)) - (EQUATOR) 0 kvi 26214396(104857584)2017-11-18 13:41:05,957 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(995)) - mapreduce.task.io.sort.mb: 1002017-11-18 13:41:05,957 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(996)) - soft limit at 838860802017-11-18 13:41:05,957 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(997)) - bufstart = 0; bufvoid = 1048576002017-11-18 13:41:05,957 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(998)) - kvstart = 26214396; length = 65536002017-11-18 13:41:05,958 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(402)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer----------setup----------------------centers------------[1.0, 3.0][2.0, 6.5][3.0, 102.0]map value=1.0 2.0valueVector=[1.0, 2.0]map 生成:1.0 3.0,1.0 2.0map value=1.0 3.0valueVector=[1.0, 3.0]map 生成:1.0 3.0,1.0 3.0map value=1.0 4.0valueVector=[1.0, 4.0]map 生成:1.0 3.0,1.0 4.0map value=2.0 5.0valueVector=[2.0, 5.0]map 生成:2.0 6.5,2.0 5.0map value=2.0 6.0valueVector=[2.0, 6.0]map 生成:2.0 6.5,2.0 6.0map value=2.0 7.0valueVector=[2.0, 7.0]map 生成:2.0 6.5,2.0 7.0map value=2.0 8.0valueVector=[2.0, 8.0]map 生成:2.0 6.5,2.0 8.0map value=3.0 100.0valueVector=[3.0, 100.0]map 生成:3.0 102.0,3.0 100.0map value=3.0 101.0valueVector=[3.0, 101.0]map 生成:3.0 102.0,3.0 101.0map value=3.0 102.0valueVector=[3.0, 102.0]map 生成:3.0 102.0,3.0 102.0map value=3.0 103.0valueVector=[3.0, 103.0]map 生成:3.0 102.0,3.0 103.0map value=3.0 104.0valueVector=[3.0, 104.0]map 生成:3.0 102.0,3.0 104.02017-11-18 13:41:05,960 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2017-11-18 13:41:05,961 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1457)) - Starting flush of map output2017-11-18 13:41:05,961 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1475)) - Spilling map output2017-11-18 13:41:05,961 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1476)) - bufstart = 0; bufend = 1872; bufvoid = 1048576002017-11-18 13:41:05,961 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1478)) - kvstart = 26214396(104857584); kvend = 26214352(104857408); length = 45/6553600----------------------KMeansCombiner---------------------key=1.0 3.0values:value=1.0 4.0value=1.0 3.0value=1.0 2.0sumWritableList=[1.0, 3.0]----------------------KMeansCombiner---------------------key=2.0 6.5values:value=2.0 8.0value=2.0 7.0value=2.0 6.0value=2.0 5.0sumWritableList=[2.0, 6.5]----------------------KMeansCombiner---------------------key=3.0 102.0values:value=3.0 104.0value=3.0 103.0value=3.0 102.0value=3.0 101.0value=3.0 100.0sumWritableList=[3.0, 102.0]2017-11-18 13:41:05,964 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1660)) - Finished spill 02017-11-18 13:41:05,966 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local1118063138_0010_m_000000_0 is done. And is in the process of committing2017-11-18 13:41:05,968 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map2017-11-18 13:41:05,968 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1118063138_0010_m_000000_0' done.2017-11-18 13:41:05,968 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local1118063138_0010_m_000000_02017-11-18 13:41:05,968 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.2017-11-18 13:41:05,969 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks2017-11-18 13:41:05,969 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local1118063138_0010_r_000000_02017-11-18 13:41:05,970 INFO [pool-31-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]2017-11-18 13:41:05,970 INFO [pool-31-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@38e03c4d2017-11-18 13:41:05,972 INFO [pool-31-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java: (197)) - MergerManager: memoryLimit=1283037568, maxSingleShuffleLimit=320759392, mergeThreshold=846804800, ioSortFactor=10, memToMemMergeOutputsThreshold=102017-11-18 13:41:05,976 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local1118063138_0010_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events2017-11-18 13:41:05,977 INFO [localfetcher#10] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(141)) - localfetcher#10 about to shuffle output of map attempt_local1118063138_0010_m_000000_0 decomp: 476 len: 480 to MEMORY2017-11-18 13:41:05,977 INFO [localfetcher#10] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 476 bytes from map-output for attempt_local1118063138_0010_m_000000_02017-11-18 13:41:05,977 INFO [localfetcher#10] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(315)) - closeInMemoryFile -> map-output of size: 476, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->4762017-11-18 13:41:05,978 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning2017-11-18 13:41:05,978 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:05,978 INFO [pool-31-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(687)) - finalMerge called with 1 in-memory map-outputs and 0 on-disk map-outputs2017-11-18 13:41:05,979 INFO [pool-31-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:05,979 INFO [pool-31-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:05,980 INFO [pool-31-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(754)) - Merged 1 segments, 476 bytes to disk to satisfy reduce memory limit2017-11-18 13:41:05,980 INFO [pool-31-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(784)) - Merging 1 files, 480 bytes from disk2017-11-18 13:41:05,980 INFO [pool-31-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(799)) - Merging 0 segments, 0 bytes from memory into reduce2017-11-18 13:41:05,980 INFO [pool-31-thread-1] mapred.Merger (Merger.java:merge(597)) - Merging 1 sorted segments2017-11-18 13:41:05,981 INFO [pool-31-thread-1] mapred.Merger (Merger.java:merge(696)) - Down to the last merge-pass, with 1 segments left of total size: 396 bytes2017-11-18 13:41:05,981 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.----------------------reduce---------------------key=1.0 3.0values:1.0 3.0reduce生成:1.0 3.0|1.0 3.0----------------------reduce---------------------key=2.0 6.5values:2.0 6.5reduce生成:2.0 6.5|2.0 6.5----------------------reduce---------------------key=3.0 102.0values:3.0 102.0reduce生成:3.0 102.0|3.0 102.02017-11-18 13:41:05,988 INFO [pool-31-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local1118063138_0010_r_000000_0 is done. And is in the process of committing2017-11-18 13:41:05,989 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 1 / 1 copied.2017-11-18 13:41:05,989 INFO [pool-31-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local1118063138_0010_r_000000_0 is allowed to commit now2017-11-18 13:41:05,990 INFO [pool-31-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local1118063138_0010_r_000000_0' to file:/media/chenjie/0009418200012FF3/ubuntu/kmeans/_temporary/0/task_local1118063138_0010_r_0000002017-11-18 13:41:05,991 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce2017-11-18 13:41:05,991 INFO [pool-31-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local1118063138_0010_r_000000_0' done.2017-11-18 13:41:05,991 INFO [pool-31-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local1118063138_0010_r_000000_02017-11-18 13:41:05,991 INFO [Thread-263] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.2017-11-18 13:41:06,864 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1367)) - Job job_local1118063138_0010 running in uber mode : false2017-11-18 13:41:06,864 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1374)) - map 100% reduce 100%2017-11-18 13:41:06,865 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1385)) - Job job_local1118063138_0010 completed successfully2017-11-18 13:41:06,868 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1392)) - Counters: 33 File System Counters FILE: Number of bytes read=24648 FILE: Number of bytes written=5197374 FILE: Number of read operations=0 FILE: Number of large read operations=0 FILE: Number of write operations=0 Map-Reduce Framework Map input records=12 Map output records=12 Map output bytes=1872 Map output materialized bytes=480 Input split bytes=130 Combine input records=12 Combine output records=3 Reduce input groups=3 Reduce shuffle bytes=480 Reduce input records=3 Reduce output records=3 Spilled Records=6 Shuffled Maps =1 Failed Shuffles=0 Merged Map outputs=1 GC time elapsed (ms)=0 CPU time spent (ms)=0 Physical memory (bytes) snapshot=0 Virtual memory (bytes) snapshot=0 Total committed heap usage (bytes)=2537553920 Shuffle Errors BAD_ID=0 CONNECTION=0 IO_ERROR=0 WRONG_LENGTH=0 WRONG_MAP=0 WRONG_REDUCE=0 File Input Format Counters Bytes Read=106 File Output Format Counters Bytes Written=38readRandomCenterFromInputFile读取一行:1.0 3.0readRandomCenterFromInputFile读取一行:2.0 6.5readRandomCenterFromInputFile读取一行:3.0 102.0----------------------------------------KMeans聚类结果--------------------------------------[1.0, 3.0][2.0, 6.5][3.0, 102.0] Spar中: import org.apache.spark.SparkConfimport org.apache.spark.SparkContextimport org.apache.spark.mllib.clustering.KMeansimport org.apache.spark.mllib.linalg.Vectorsobject ScalaKMeans { def main(args: Array[String]): Unit = { val sparkConf = new SparkConf().setAppName("KMeans").setMaster("local") val sc = new SparkContext(sparkConf) val input = "file:///media/chenjie/0009418200012FF3/ubuntu/kmeans_input_file.txt" val k = 3 val iterations = 10 val runs = if (args.length >= 3) args(3).toInt else 1 val lines = sc.textFile(input) // build the vector points val points = lines.map(line => { val tokens = line.split("\\s+") Vectors.dense(tokens.map(_.toDouble)) }) // build model val model = KMeans.train(points, k, iterations, runs, KMeans.K_MEANS_PARALLEL) // spark-2.0.2 // model = KMeans.train(points, k, iterations, KMeans.K_MEANS_PARALLEL) // spark-2.1.0 println("Cluster centers:") model.clusterCenters.foreach(println) // compute cost val cost = model.computeCost(points) println(s"Cost: ${cost}") // done! sc.stop() }}
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