Hadoop在哪里存储YARN应用程序的日志？ [英] Where does Hadoop store the logs of YARN applications?

问题描述

我运行Hortonworks的纱线应用示例的基本示例。该应用程序失败，我想读取日志找出原因。但是我无法在预期位置找到任何文件（ / HADOOP_INSTALL_FOLDER / logs ），其中存储了mapreduce作业的日志。

有没有人知道yarn存储非mapreduce日志文件的位置？我必须在xml文件中配置一个特殊的目录吗？

： code> ：

存储容器日志的位置。应用程序的本地化日志目录可以在 $ {yarn.nodemanager.log-dirs} / application _ $ {appid} 中找到。单个容器的日志目录将位于名为 container _ {$ contid} 的目录下。每个容器目录将包含由该容器生成的stderr，stdin和syslog文件。

I run the basic example of Hortonworks' yarn application example. The application fails and I want to read the logs to figure out why. But I can't find any files at the expected location (/HADOOP_INSTALL_FOLDER/logs) where the logs of my mapreduce jobs are stored.

Does anybody know where yarn stores the non-mapreduce log files? Do I have to configure a special directory in the xml files?

解决方案

The container logs should be under yarn.nodemanager.log-dirs:

Where to store container logs. An application's localized log directory will be found in ${yarn.nodemanager.log-dirs}/application_${appid}. Individual containers' log directories will be below this, in directories named container_{$contid}. Each container directory will contain the files stderr, stdin, and syslog generated by that container.

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