java - Yarn 容器上的 ExitCodeException

Question

我在运行一个简单的 YARN 应用程序时遇到以下异常，我如何才能获得更多信息来调试该问题？

Oct 14, 2014 12:29:19 PM dz.lab.yarn.simple.handler.RMCallbackHandler onContainersCompleted
INFO: container 'container_1410790353365_0036_02_000002' status is ContainerStatus: [ContainerId: container_1410790353365_0036_02_000002, State: COMPLETE, Diagnostics: Exception from container-launch: ExitCodeException exitCode=1: 
ExitCodeException exitCode=1: 
    at org.apache.hadoop.util.Shell.runCommand(Shell.java:538)
    at org.apache.hadoop.util.Shell.run(Shell.java:455)
    at org.apache.hadoop.util.Shell$ShellCommandExecutor.execute(Shell.java:702)
    at org.apache.hadoop.yarn.server.nodemanager.DefaultContainerExecutor.launchContainer(DefaultContainerExecutor.java:195)
    at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:300)
    at org.apache.hadoop.yarn.server.nodemanager.containermanager.launcher.ContainerLaunch.call(ContainerLaunch.java:81)
    at java.util.concurrent.FutureTask.run(FutureTask.java:262)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
    at java.lang.Thread.run(Thread.java:745)

什么是

Answer 1

您可以从容器的日志中获取更多信息。

您可以通过以下方式查看容器的日志:

1. 来自 RM 的用户界面 (http://_rm_hostname_ >:8088)。更多细节在这里: http://hadooptutorial.info/tracing-logs-through-yarn-web-ui/

2. 通过控制台命令:“yarn logs -applicationId”

3. 在下一个位置手动查找日志:

a) 如果禁用聚合(日志将位于运行容器的本地目录中):$HADOOP_HOME$/logs/userlogs/application_1490965385045_0002/

b) 如果启用聚合(日志将位于 HDFS 中):/tmp/logs/用户名>/logs/application_1490965385045_0002/_node_name_>