hadoop学习笔记3 hadoop2.5.2单机模式环境配置和eclipse运行
hdfs-site.xml
mapred-site.xml 2.5是没有这个文件 参考网上一些人说 将 .temple去掉 然后修改里面的配置
yarn-site.xml
以上几个几个配置文件
2 然后 删除 /home/mouap/hadoop/ 路径下 tmp 和 dfs文件里面的内容
3 格式化 /home/mouap/hadoop/ 路径下 bin/hdfs namenode -format
4 然后将 文件放入等几个命令
/usr/lib/jdk/jdk1.8.0_45/bin/jps 查看进程
格式化文件 在 mouap/hadoop/目录下
bin/hdfs namenode -format
bin/hadoop dfs -put input /in --放文件
bin/hadoop dfsadmin -safemode leave 如果报错
bin/hadoop dfs -ls /in 查看
bin/hadoop jar /usr/app/hadoop-eclipse-plugin/build/contrib/eclipse-plugin/lib/hadoop-mapreduce-examples-2.5.2.jar wordcount /in out --设置运行的jar
bin/hadoop dfs -cat out/* --运行输出结果
bin/hadoop fs -rmr out --删除out目录
5 然后在 /home/mouap/hadoop/sbin 路径下 启动进程
./start-dfs.sh ./start-yarn.sh
启动２个完毕后 ｊps查看下进程
9778 Jps
7939 NameNode
4825 org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar
8457 NodeManager
8331 ResourceManager
8060 DataNode
查看页面是否显示正常 http://127.0.1.1:50070/
http://localhost:8088/
6然后 设置运行类
bin/hadoop jar /usr/app/hadoop-eclipse-plugin/build/contrib/eclipse-plugin/lib/hadoop-mapreduce-examples-2.5.2.jar wordcount /in out
７然后 计算
bin/hadoop dfs -cat out/*
8 输出
hadoop 2
hello 3
mouap 2
welcom 1
world 2
eclipse里面的代码
-===================================
package mouapTest;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.net.URI;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.List;
import java.util.Set;
import java.util.StringTokenizer;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.io.IntWritable;
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.mapreduce.lib.output.FileOutputFormat;
import org.apache.hadoop.mapreduce.lib.output.TextOutputFormat;
import org.apache.hadoop.mapreduce.Counter;
import org.apache.hadoop.util.GenericOptionsParser;
import org.apache.hadoop.util.StringUtils;
public class WorldCount2_5_2 {
public static class TokenizerMapper extends Mapper
static enum CountersEnum { INPUT_WORDS }
private final static IntWritable one = new IntWritable(1);
private Text word = new Text();
private boolean caseSensitive;
private Set
private Configuration conf;
private BufferedReader fis;
@Override
public void setup(Context context) throws IOException,InterruptedException {
// conf = context.getConfiguration();
// caseSensitive = conf.getBoolean("wordcount.case.sensitive", true);
// if (conf.getBoolean("wordcount.skip.patterns", true)) {
//
// URI[] patternsURIs = Job.getInstance(conf).getCacheFiles();
//
// for (URI patternsURI : patternsURIs) {
// Path patternsPath = new Path(patternsURI.getPath());
// String patternsFileName = patternsPath.getName().toString();
// parseSkipFile(patternsFileName);
// }
// }
}
private void parseSkipFile(String fileName) {
try {
fis = new BufferedReader(new FileReader(fileName));
String pattern = null;
while ((pattern = fis.readLine()) != null) {
patternsToSkip.add(pattern);
}
} catch (IOException ioe) {
System.err.println("Caught exception while parsing the cached file '"+ StringUtils.stringifyException(ioe));
}
}
@Override
public void map(Object key, Text value, Context context) throws IOException, InterruptedException {
String line = (caseSensitive) ?
value.toString() : value.toString().toLowerCase();
for (String pattern : patternsToSkip) {
line = line.replaceAll(pattern, "");
}
StringTokenizer itr = new StringTokenizer(line);
while (itr.hasMoreTokens()) {
word.set(itr.nextToken());
context.write(word, one);
Counter counter = context.getCounter(CountersEnum.class.getName(),
CountersEnum.INPUT_WORDS.toString());
counter.increment(1);
}
}
}
public static class IntSumReducer extends Reducer
private IntWritable result = new IntWritable();
public void reduce(Text key, Iterable
int sum = 0;
for (IntWritable val : values) {
sum += val.get();
}
result.set(sum);
context.write(key, result);
}
}
public static void main(String[] args) throws Exception {
Configuration conf = new Configuration();
// System.setProperty("hadoop.home.dir", "c:/home/mouap/hadoop");
GenericOptionsParser optionParser = new GenericOptionsParser(conf, args);
String[] remainingArgs = optionParser.getRemainingArgs();
System.out.println("test1 = " + remainingArgs.length );
if (!(remainingArgs.length != 2 || remainingArgs.length != 4)) {
System.err.println("Usage: wordcount
System.exit(2);
}
System.out.println("test2 url:" + conf.get("fs.defaultFS"));
Job job = Job.getInstance(conf, "word count");//??????????
System.out.println("test2222 url:" + conf.get("fs.defaultFS"));
job.setJarByClass(WorldCount2_5_2.class);
job.setOutputKeyClass(Text.class);
job.setOutputValueClass(IntWritable.class);
job.setMapperClass(TokenizerMapper.class);
job.setReducerClass(IntSumReducer.class);
/**/
job.setInputFormatClass(TextInputFormat.class);
job.setOutputFormatClass(TextOutputFormat.class);
job.setCombinerClass(IntSumReducer.class);
System.out.println("test3 = " + remainingArgs.length );
List
for (int i=0; i < remainingArgs.length; ++i) {
if ("-skip".equals(remainingArgs[i])) {
job.addCacheFile(new Path(remainingArgs[++i]).toUri());
job.getConfiguration().setBoolean("wordcount.skip.patterns", true);
} else {
otherArgs.add(remainingArgs[i]);
}
}
System.out.println("test4 = " + remainingArgs.length );
FileInputFormat.addInputPath(job, new Path(otherArgs.get(0)));
System.out.println("test5 = " + FileInputFormat.getInputPaths(job) );
FileOutputFormat.setOutputPath(job, new Path(otherArgs.get(1)));
System.out.println("test6 = " + FileOutputFormat.getOutputPath(job) );
System.out.println("otherArgs.get(0) ="+otherArgs.get(0)+" otherArgs.get(1)"+otherArgs.get(1));
System.out.println("job result ================ "+(job.waitForCompletion(true) ? 0 : 1));
System.exit(job.waitForCompletion(true) ? 0 : 1);
}
}
=====================================
eclipse里面的 dfs location设置
eclipse里面run的参数配置 特别注意那个里面 输入 输出的参数 用全路径
运行后显示的效果为
输出日志
test1 = 2
test2 url:file:///
2015-05-03 15:19:20,146 WARN [main] util.NativeCodeLoader (NativeCodeLoader.java:
test2222 url:file:///
test3 = 2
test4 = 2
test5 = [Lorg.apache.hadoop.fs.Path;@10aa41f2
test6 = hdfs://127.0.0.1:9000/user/root/out
otherArgs.get(0) =hdfs://127.0.0.1:9000/user/root/in otherArgs.get(1)hdfs://127.0.0.1:9000/user/root/out
2015-05-03 15:19:20,663 INFO [main] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(1019)) - session.id is deprecated. Instead, use dfs.metrics.session-id
2015-05-03 15:19:20,664 INFO [main] jvm.JvmMetrics (JvmMetrics.java:init(76)) - Initializing JVM Metrics with processName=JobTracker, sessionId=
2015-05-03 15:19:20,903 WARN [main] mapreduce.JobSubmitter (JobSubmitter.java:copyAndConfigureFiles(259)) - No job jar file set. User classes may not be found. See Job or Job#setJar(String).
2015-05-03 15:19:20,962 INFO [main] input.FileInputFormat (FileInputFormat.java:listStatus(281)) - Total input paths to process : 2
2015-05-03 15:19:21,005 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:submitJobInternal(396)) - number of splits:2
2015-05-03 15:19:21,129 INFO [main] mapreduce.JobSubmitter (JobSubmitter.java:printTokens(479)) - Submitting tokens for job: job_local395912683_0001
2015-05-03 15:19:21,166 WARN [main] conf.Configuration (Configuration.java:loadProperty(2368)) - file:/tmp/hadoop-root/mapred/staging/root395912683/.staging/job_local395912683_0001/job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval; Ignoring.
2015-05-03 15:19:21,170 WARN [main] conf.Configuration (Configuration.java:loadProperty(2368)) - file:/tmp/hadoop-root/mapred/staging/root395912683/.staging/job_local395912683_0001/job.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts; Ignoring.
2015-05-03 15:19:21,264 WARN [main] conf.Configuration (Configuration.java:loadProperty(2368)) - file:/tmp/hadoop-root/mapred/local/localRunner/root/job_local395912683_0001/job_local395912683_0001.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.retry.interval; Ignoring.
2015-05-03 15:19:21,270 WARN [main] conf.Configuration (Configuration.java:loadProperty(2368)) - file:/tmp/hadoop-root/mapred/local/localRunner/root/job_local395912683_0001/job_local395912683_0001.xml:an attempt to override final parameter: mapreduce.job.end-notification.max.attempts; Ignoring.
2015-05-03 15:19:21,277 INFO [main] mapreduce.Job (Job.java:submit(1289)) - The url to track the job: http://localhost:8080/
2015-05-03 15:19:21,278 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1334)) - Running job: job_local395912683_0001
2015-05-03 15:19:21,279 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(471)) - OutputCommitter set in config null
2015-05-03 15:19:21,284 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:createOutputCommitter(489)) - OutputCommitter is org.apache.hadoop.mapreduce.lib.output.FileOutputCommitter
2015-05-03 15:19:21,367 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for map tasks
2015-05-03 15:19:21,367 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local395912683_0001_m_000000_0
2015-05-03 15:19:21,451 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]
2015-05-03 15:19:21,458 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(733)) - Processing split: hdfs://127.0.0.1:9000/user/root/in/test1mou.txt:0+37
2015-05-03 15:19:21,471 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(388)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
2015-05-03 15:19:21,502 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1182)) - (EQUATOR) 0 kvi 26214396(104857584)
2015-05-03 15:19:21,502 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(975)) - mapreduce.task.io.sort.mb: 100
2015-05-03 15:19:21,502 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(976)) - soft limit at 83886080
2015-05-03 15:19:21,502 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(977)) - bufstart = 0; bufvoid = 104857600
2015-05-03 15:19:21,503 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(978)) - kvstart = 26214396; length = 6553600
2015-05-03 15:19:21,687 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) -
2015-05-03 15:19:21,709 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1437)) - Starting flush of map output
2015-05-03 15:19:21,709 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1455)) - Spilling map output
2015-05-03 15:19:21,709 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1456)) - bufstart = 0; bufend = 61; bufvoid = 104857600
2015-05-03 15:19:21,709 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1458)) - kvstart = 26214396(104857584); kvend = 26214376(104857504); length = 21/6553600
2015-05-03 15:19:21,726 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1641)) - Finished spill 0
2015-05-03 15:19:21,729 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local395912683_0001_m_000000_0 is done. And is in the process of committing
2015-05-03 15:19:21,744 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map
2015-05-03 15:19:21,744 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local395912683_0001_m_000000_0' done.
2015-05-03 15:19:21,744 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local395912683_0001_m_000000_0
2015-05-03 15:19:21,744 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(224)) - Starting task: attempt_local395912683_0001_m_000001_0
2015-05-03 15:19:21,746 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]
2015-05-03 15:19:21,748 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:runNewMapper(733)) - Processing split: hdfs://127.0.0.1:9000/user/root/in/test2mou.txt:0+26
2015-05-03 15:19:21,749 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:createSortingCollector(388)) - Map output collector class = org.apache.hadoop.mapred.MapTask$MapOutputBuffer
2015-05-03 15:19:21,772 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:setEquator(1182)) - (EQUATOR) 0 kvi 26214396(104857584)
2015-05-03 15:19:21,772 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(975)) - mapreduce.task.io.sort.mb: 100
2015-05-03 15:19:21,772 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(976)) - soft limit at 83886080
2015-05-03 15:19:21,772 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(977)) - bufstart = 0; bufvoid = 104857600
2015-05-03 15:19:21,773 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:init(978)) - kvstart = 26214396; length = 6553600
2015-05-03 15:19:21,799 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) -
2015-05-03 15:19:21,800 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1437)) - Starting flush of map output
2015-05-03 15:19:21,800 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1455)) - Spilling map output
2015-05-03 15:19:21,800 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1456)) - bufstart = 0; bufend = 42; bufvoid = 104857600
2015-05-03 15:19:21,800 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:flush(1458)) - kvstart = 26214396(104857584); kvend = 26214384(104857536); length = 13/6553600
2015-05-03 15:19:21,803 INFO [LocalJobRunner Map Task Executor #0] mapred.MapTask (MapTask.java:sortAndSpill(1641)) - Finished spill 0
2015-05-03 15:19:21,807 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:done(1001)) - Task:attempt_local395912683_0001_m_000001_0 is done. And is in the process of committing
2015-05-03 15:19:21,813 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - map
2015-05-03 15:19:21,813 INFO [LocalJobRunner Map Task Executor #0] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local395912683_0001_m_000001_0' done.
2015-05-03 15:19:21,814 INFO [LocalJobRunner Map Task Executor #0] mapred.LocalJobRunner (LocalJobRunner.java:run(249)) - Finishing task: attempt_local395912683_0001_m_000001_0
2015-05-03 15:19:21,814 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - map task executor complete.
2015-05-03 15:19:21,816 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(448)) - Waiting for reduce tasks
2015-05-03 15:19:21,816 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(302)) - Starting task: attempt_local395912683_0001_r_000000_0
2015-05-03 15:19:21,824 INFO [pool-6-thread-1] mapred.Task (Task.java:initialize(587)) - Using ResourceCalculatorProcessTree : [ ]
2015-05-03 15:19:21,827 INFO [pool-6-thread-1] mapred.ReduceTask (ReduceTask.java:run(362)) - Using ShuffleConsumerPlugin: org.apache.hadoop.mapreduce.task.reduce.Shuffle@5251c987
2015-05-03 15:19:21,839 INFO [pool-6-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:
2015-05-03 15:19:21,842 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(61)) - attempt_local395912683_0001_r_000000_0 Thread started: EventFetcher for fetching Map Completion Events
2015-05-03 15:19:21,877 INFO [localfetcher#1] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(140)) - localfetcher#1 about to shuffle output of map attempt_local395912683_0001_m_000001_0 decomp: 39 len: 43 to MEMORY
2015-05-03 15:19:21,881 INFO [localfetcher#1] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 39 bytes from map-output for attempt_local395912683_0001_m_000001_0
2015-05-03 15:19:21,884 INFO [localfetcher#1] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(307)) - closeInMemoryFile -> map-output of size: 39, inMemoryMapOutputs.size() -> 1, commitMemory -> 0, usedMemory ->39
2015-05-03 15:19:21,886 INFO [localfetcher#1] reduce.LocalFetcher (LocalFetcher.java:copyMapOutput(140)) - localfetcher#1 about to shuffle output of map attempt_local395912683_0001_m_000000_0 decomp: 51 len: 55 to MEMORY
2015-05-03 15:19:21,887 INFO [localfetcher#1] reduce.InMemoryMapOutput (InMemoryMapOutput.java:shuffle(100)) - Read 51 bytes from map-output for attempt_local395912683_0001_m_000000_0
2015-05-03 15:19:21,887 INFO [localfetcher#1] reduce.MergeManagerImpl (MergeManagerImpl.java:closeInMemoryFile(307)) - closeInMemoryFile -> map-output of size: 51, inMemoryMapOutputs.size() -> 2, commitMemory -> 39, usedMemory ->90
2015-05-03 15:19:21,888 INFO [EventFetcher for fetching Map Completion Events] reduce.EventFetcher (EventFetcher.java:run(76)) - EventFetcher is interrupted.. Returning
2015-05-03 15:19:21,889 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2 / 2 copied.
2015-05-03 15:19:21,889 INFO [pool-6-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(667)) - finalMerge called with 2 in-memory map-outputs and 0 on-disk map-outputs
2015-05-03 15:19:21,909 INFO [pool-6-thread-1] mapred.Merger (Merger.java:merge(591)) - Merging 2 sorted segments
2015-05-03 15:19:21,910 INFO [pool-6-thread-1] mapred.Merger (Merger.java:merge(690)) - Down to the last merge-pass, with 2 segments left of total size: 73 bytes
2015-05-03 15:19:21,914 INFO [pool-6-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(742)) - Merged 2 segments, 90 bytes to disk to satisfy reduce memory limit
2015-05-03 15:19:21,915 INFO [pool-6-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(772)) - Merging 1 files, 92 bytes from disk
2015-05-03 15:19:21,917 INFO [pool-6-thread-1] reduce.MergeManagerImpl (MergeManagerImpl.java:finalMerge(787)) - Merging 0 segments, 0 bytes from memory into reduce
2015-05-03 15:19:21,918 INFO [pool-6-thread-1] mapred.Merger (Merger.java:merge(591)) - Merging 1 sorted segments
2015-05-03 15:19:21,918 INFO [pool-6-thread-1] mapred.Merger (Merger.java:merge(690)) - Down to the last merge-pass, with 1 segments left of total size: 79 bytes
2015-05-03 15:19:21,920 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2 / 2 copied.
2015-05-03 15:19:21,984 INFO [pool-6-thread-1] Configuration.deprecation (Configuration.java:warnOnceIfDeprecated(1019)) - mapred.skip.on is deprecated. Instead, use mapreduce.job.skiprecords
2015-05-03 15:19:22,227 INFO [pool-6-thread-1] mapred.Task (Task.java:done(1001)) - Task:attempt_local395912683_0001_r_000000_0 is done. And is in the process of committing
2015-05-03 15:19:22,232 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - 2 / 2 copied.
2015-05-03 15:19:22,232 INFO [pool-6-thread-1] mapred.Task (Task.java:commit(1162)) - Task attempt_local395912683_0001_r_000000_0 is allowed to commit now
2015-05-03 15:19:22,273 INFO [pool-6-thread-1] output.FileOutputCommitter (FileOutputCommitter.java:commitTask(439)) - Saved output of task 'attempt_local395912683_0001_r_000000_0' to hdfs://127.0.0.1:9000/user/root/out/_temporary/0/task_local395912683_0001_r_000000
2015-05-03 15:19:22,275 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:statusUpdate(591)) - reduce > reduce
2015-05-03 15:19:22,275 INFO [pool-6-thread-1] mapred.Task (Task.java:sendDone(1121)) - Task 'attempt_local395912683_0001_r_000000_0' done.
2015-05-03 15:19:22,275 INFO [pool-6-thread-1] mapred.LocalJobRunner (LocalJobRunner.java:run(325)) - Finishing task: attempt_local395912683_0001_r_000000_0
2015-05-03 15:19:22,276 INFO [Thread-12] mapred.LocalJobRunner (LocalJobRunner.java:runTasks(456)) - reduce task executor complete.
2015-05-03 15:19:22,280 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1355)) - Job job_local395912683_0001 running in uber mode : false
2015-05-03 15:19:22,282 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1362)) - map 100% reduce 100%
2015-05-03 15:19:23,285 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1373)) - Job job_local395912683_0001 completed successfully
2015-05-03 15:19:23,312 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1380)) - Counters: 39
job result ================ 0
2015-05-03 15:19:23,312 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1334)) - Running job: job_local395912683_0001
2015-05-03 15:19:23,313 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1355)) - Job job_local395912683_0001 running in uber mode : false
2015-05-03 15:19:23,313 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1362)) - map 100% reduce 100%
2015-05-03 15:19:23,313 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1373)) - Job job_local395912683_0001 completed successfully
2015-05-03 15:19:23,320 INFO [main] mapreduce.Job (Job.java:monitorAndPrintJob(1380)) - Counters: 39
File System Counters
FILE: Number of bytes read=1607
FILE: Number of bytes written=688670
FILE: Number of read operations=0
FILE: Number of large read operations=0
FILE: Number of write operations=0
HDFS: Number of bytes read=163
HDFS: Number of bytes written=42
HDFS: Number of read operations=25
HDFS: Number of large read operations=0
HDFS: Number of write operations=5
Map-Reduce Framework
Map input records=2
Map output records=10
Map output bytes=103
Map output materialized bytes=98
Input split bytes=224
Combine input records=10
Combine output records=7
Reduce input groups=5
Reduce shuffle bytes=98
Reduce input records=7
Reduce output records=5
Spilled Records=14
Shuffled Maps =2
Failed Shuffles=0
Merged Map outputs=2
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)=824180736
Shuffle Errors
BAD_ID=0
CONNECTION=0
IO_ERROR=0
WRONG_LENGTH=0
WRONG_MAP=0
WRONG_REDUCE=0
mouapTest.WorldCount2_5_2$TokenizerMapper$CountersEnum
INPUT_WORDS=10
File Input Format Counters
Bytes Read=63
File Output Format Counters
Bytes Written=42
备注，eclipse启动是用root在终端的。注意用户权限问题.