我使用本教程在我的ubuntu盒子上安装了hadoop 2.2系统。
codesfusion.blogspot/2013/11/hadoop-2x-core-hdfs-and-yarn-components。 HTML
一切正常，对我来说现在当我做的时候
http：// localhost：50070我可以看到HDFS的管理用户界面。很好！
但是我正在阅读另一个教程，告诉我必须有一个任务管理器UI在 mymachine:50030 和 http：// mymachine:50060
我的机器上无法打开这些端口。
我有已完成
start-dfs.sh start-yarn.sh start-all.sh
有问题吗？为什么我看不到任务管理器用户界面？
解决方案您已经安装了运行ResourceManager的YARN（MRv2）。 URL mymachine:50030 是MRv1附带的JobTracker守护程序的Web地址，因此您无法看看它。
要查看ResourceManager UI，请检查yarn-site.xml文件中的以下属性：
yarn.resourcemanager.webapp.address
默认情况下，它应该指向：resource_manager_hostname：8088 b $ b
假设您的ResourceManager在mymachine上运行，您应该在 mymachine:8088/
中看到ResourceManager UI b $ b在您访问ResourceManager的URL之前，确保您所有的deamons都已启动并正在运行。
I installed the hadoop 2.2 system on my ubuntu box using this tutorial
codesfusion.blogspot/2013/11/hadoop-2x-core-hdfs-and-yarn-components.html
Everything worked fine for me and now when I do
localhost:50070I can see the management UI for HDFS. Very good!!
But the I am going through another tutorial which tells me that there must be a task manager UI running at mymachine:50030 and mymachine:50060
on my machine I cannot open these ports.
I have already done
start-dfs.sh start-yarn.sh start-all.sh
is something wrong? why can't I see the task manager UI?
解决方案You have installed YARN (MRv2) which runs the ResourceManager. The URL mymachine:50030 is the web address for the JobTracker daemon that comes with MRv1 and hence you are not able to see it.
To see the ResourceManager UI, check your yarn-site.xml file for the following property:
yarn.resourcemanager.webapp.address
By default, it should point to : resource_manager_hostname:8088
Assuming your ResourceManager runs on mymachine, you should see the ResourceManager UI at mymachine:8088/
Make sure all your deamons are up and running before you visit the URL for the ResourceManager.
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