运行hadoop案例wordcount报错:Stack trace: ExitCodeException exitCode=1:

本文描述了在运行Hadoop WordCount案例时遇到的程序报错问题,并提供了详细的解决方案。通过修改mapred-site.xml文件中的主机名,成功解决了报错,使案例运行结果正确。

1.问题描述,在运行hadoop案例wordcount案例时,程序报错截图如下:

2.解决方案:

查看mapred-site.xml文件

 

将文件中的主机名hadoop1全部改为hadoop101(我之前改了主机名)

重新运行指令,结果正确了

25/05/29 21:43:46 INFO mapreduce.Job: Job job_1748522304228_0002 failed with state FAILED due to: Application application_1748522304228_0002 failed 2 times due to AM Container for appattempt_1748522304228_0002_000002 exited with exitCode: 1 For more detailed output, check application tracking page:http://jzx01:8088/cluster/app/application_1748522304228_0002Then, click on links to logs of each attempt. Diagnostics: Exception from container-launch. Container id: container_1748522304228_0002_02_000001 Exit code: 1 Stack trace: ExitCodeException exitCode=1: at org.apache.hadoop.util.Shell.runCommand(Shell.java:585) at org.apache.hadoop.util.Shell.run(Shell.java:482) at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:776) at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:212) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:302) at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:82) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) Container exited with a non-zero exit code 1 Failing this attempt. Failing the application. 25/05/29 21:43:46 INFO mapreduce.Job: Counters: 0
05-30
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