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Q:How to start hadoop in cloudera?

Q:Cloudera的Hadoop如何开始?

I am learning hadoop. I am trying to use cloudera. but when I type jps its not showing any process running. Do I need to start hadoop? Is not it start hadoop automatically? if we need to start that how to do it?

one more thing what is the difference between hadoop and bigdata?

I am learning hadoop. I am trying to use cloudera. but when I type jps its not showing any process running. Do I need to start hadoop? Is not it start hadoop automatically? if we need to start that how to do it?

还有一件事,Hadoop和大数据的区别是什么?

answer1: 回答1:

Hadoop can be defined as a technical stack of tools edited by the Apache Software Foundation. Sometimes Hadoop stands for Apache HDFS + MapReduce, sometimes it stands for the global solution of Apache : HDFS, MapReduce, Mahout, Hive, HBase, Zookeeper, Storm, Spark, Flume, Sqoop, Yarn, Solr, etc etc... I suppose there is a real definition (see hadoop.apache.org), but when people are talking about hadoop, they often mean "Bigdata solution based on apache tecnologies". Some editors add a commercial support and/or aggregate other components (HortonWorks, Cloudera, Stratio, ...).

To initiate you to Hadoop, you can use either the virtual machine of Cloudera or the hortonworks sandbox. There are lots of interesting tutorials published on the hortonworks website to understand how Hadoop works. What's interesting is to replicate the Hortonworks tutorials on a Cloudera environment, to learn what the hadoop core is and understand what Cloudera Manager offers to manage a cluster.

The JPS command is not very important at your nivel. You'll discover how to use it when you understand what is hadoop, and more important, what is Big Data.

Hadoop can be defined as a technical stack of tools edited by the Apache Software Foundation. Sometimes Hadoop stands for Apache HDFS + MapReduce, sometimes it stands for the global solution of Apache : HDFS, MapReduce, Mahout, Hive, HBase, Zookeeper, Storm, Spark, Flume, Sqoop, Yarn, Solr, etc etc... I suppose there is a real definition (see hadoop.apache.org), but when people are talking about hadoop, they often mean "Bigdata solution based on apache tecnologies". Some editors add a commercial support and/or aggregate other components (HortonWorks, Cloudera, Stratio, ...).

启动你的Hadoop,你可以使用虚拟机的Cloudera或Hortonworks沙盒。有有趣的教程,Hortonworks网站发表了解Hadoop的许多作品。有意思的是复制一个Cloudera环境Hortonworks教程,了解Hadoop的核心是了解Cloudera经理提供管理集群。

JPS命令在你新的不是很重要。你会发现如何使用它,当你了解Hadoop是什么,更重要的是,什么是大数据。

hadoop  bigdata  cloudera  cloudera-manager