WordCount案例实操--打包到集群上运行

ゝ一世哀愁。 2023-07-03 03:27 58阅读 0赞

### **WordCount案例实操--打包到集群上运行** ###

1.点击idea中

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FCVV9NT2xJX0lUVUk_size_16_color_FFFFFF_t_70][]

2.复制mapreduce-1.0-SNAPSHOT.jar到桌面

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FCVV9NT2xJX0lUVUk_size_16_color_FFFFFF_t_70 1][]

3,.将jar包改名，然后拖入虚拟机里

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FCVV9NT2xJX0lUVUk_size_16_color_FFFFFF_t_70 2][]

4,查看jar包

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0FCVV9NT2xJX0lUVUk_size_16_color_FFFFFF_t_70 3][] 5，拷贝路径WcDriver（com.zpark.wordcount.WcDriver）

6，在CRT中

\[root@hdp-1 ~\]\# cd apps  
\[root@hdp-1 apps\]\# cd hadoop-2.8.1/  
\[root@hdp-1 hadoop-2.8.1\]\# hadoop jar mapreduce1.jar com.zpark.wordcount.WcDriver /1.txt /ooutput

20/02/01 19:21:48 INFO client.RMProxy: Connecting to ResourceManager at hdp-1/192.168.0.128:8032
    20/02/01 19:21:49 WARN mapreduce.JobResourceUploader: Hadoop command-line option parsing not performed. Implement the Tool interface and execute your application with ToolRunner to remedy this.
    20/02/01 19:21:49 INFO input.FileInputFormat: Total input files to process : 1
    20/02/01 19:21:50 INFO mapreduce.JobSubmitter: number of splits:1
    20/02/01 19:21:51 INFO mapreduce.JobSubmitter: Submitting tokens for job: job_1580555517299_0001
    20/02/01 19:21:51 INFO impl.YarnClientImpl: Submitted application application_1580555517299_0001
    20/02/01 19:21:52 INFO mapreduce.Job: The url to track the job: http://hdp-1:8088/proxy/application_1580555517299_0001/
    20/02/01 19:21:52 INFO mapreduce.Job: Running job: job_1580555517299_0001
    20/02/01 19:22:07 INFO mapreduce.Job: Job job_1580555517299_0001 running in uber mode : false
    20/02/01 19:22:07 INFO mapreduce.Job:  map 0% reduce 0%
    20/02/01 19:22:19 INFO mapreduce.Job:  map 100% reduce 0%
    20/02/01 19:22:31 INFO mapreduce.Job:  map 100% reduce 100%
    20/02/01 19:22:32 INFO mapreduce.Job: Job job_1580555517299_0001 completed successfully
    20/02/01 19:22:32 INFO mapreduce.Job: Counters: 49
            File System Counters
                    FILE: Number of bytes read=107
                    FILE: Number of bytes written=272411
                    FILE: Number of read operations=0
                    FILE: Number of large read operations=0
                    FILE: Number of write operations=0
                    HDFS: Number of bytes read=124
                    HDFS: Number of bytes written=36
                    HDFS: Number of read operations=6
                    HDFS: Number of large read operations=0
                    HDFS: Number of write operations=2
            Job Counters 
                    Launched map tasks=1
                    Launched reduce tasks=1
                    Data-local map tasks=1
                    Total time spent by all maps in occupied slots (ms)=9492
                    Total time spent by all reduces in occupied slots (ms)=8040
                    Total time spent by all map tasks (ms)=9492
                    Total time spent by all reduce tasks (ms)=8040
                    Total vcore-milliseconds taken by all map tasks=9492
                    Total vcore-milliseconds taken by all reduce tasks=8040
                    Total megabyte-milliseconds taken by all map tasks=9719808
                    Total megabyte-milliseconds taken by all reduce tasks=8232960
            Map-Reduce Framework
                    Map input records=3
                    Map output records=11
                    Map output bytes=79
                    Map output materialized bytes=107
                    Input split bytes=88
                    Combine input records=0
                    Combine output records=0
                    Reduce input groups=6
                    Reduce shuffle bytes=107
                    Reduce input records=11
                    Reduce output records=6
                    Spilled Records=22
                    Shuffled Maps =1
                    Failed Shuffles=0
                    Merged Map outputs=1
                    GC time elapsed (ms)=301
                    CPU time spent (ms)=2200
                    Physical memory (bytes) snapshot=303382528
                    Virtual memory (bytes) snapshot=4164362240
                    Total committed heap usage (bytes)=152588288
            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=36
            File Output Format Counters 
                    Bytes Written=36
    0

7,查看

[root@hdp-1 hadoop-2.8.1]# hadoop fs -cat /ooutput/*
            5
    1       1
    hadoop  1
    hellow  2
    me      1
    you     1

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