Hadoop单节点安装后无法看到任务跟踪器和Jobtracker 2.5.1 [英] unable to see Task tracker and Jobtracker after Hadoop single node installation 2.5.1

问题描述

Iam是Hadoop 2.5.1的新成员。因为我之前已经安装了Hadoop 1.0.4，所以我认为安装过程与以下教程相同。

http://www.michael-noll.com/tutorials/running-hadoop-on- ubuntu-linux-single-node-cluster /

每件事情都很好，即使我在core-site.xml中提供了这些设置

 < name> fs.default.name< / name> 
 
< value> hdfs：// localhost：54310< /值> 
  

但是我已经在几个网站上看到这个值是9000.

以及yarn.xml中的更改。

当我运行mapreduce作业时，仍然一切正常。但我的问题是，当我运行命令jps时，它给了我这个输出。

  $ b $ p  hduser @ secondmaster：〜$ jps 
 
 5178 ResourceManager 
 
 5038 SecondaryNameNode 
 
 4863 DataNode 
 
 5301 NodeManager 
 
 4719 NameNode 
 
 6683 Jps 
  

我没有看到jps中的任务跟踪器和作业跟踪器。这些恶魔在哪里运行。
没有这些deamons，我怎么能够运行Mapreduce作业。

谢谢，

Sreelatha K。

解决方案

YARN是下一代资源管理器，能够与Apache Spark，Storm和更多工具集成用于编写map-reduce作业

Iam new to Hadoop 2.5.1. As i have already installed Hadoop 1.0.4 previously, i thought installation process would be same so followed following tutorial.

http://www.michael-noll.com/tutorials/running-hadoop-on-ubuntu-linux-single-node-cluster/

Every thing was fine, even i have given these settings in core-site.xml

<name>fs.default.name</name>

  <value>hdfs://localhost:54310</value>

But i have seen in several sites this value as 9000.

And also changes in yarn.xml.

Still everything works fine when i run a mapreduce job. But my question is

when i run command jps it gives me this output..

hduser@secondmaster:~$ jps

5178 ResourceManager

5038 SecondaryNameNode

4863 DataNode

5301 NodeManager

4719 NameNode

6683 Jps

I dont see task tracker and job tracker in jps. Where are these demons running. And without these deamons how am i able to run Mapreduce job.

Thanks,

Sreelatha K.

解决方案

YARN is next generation of Resource Manager who can able to integrate with Apache spark, storm and many more tools you can use to write map-reduce jobs

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