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This article mainly explains "installation tutorial of hadoop2.5 Test Environment". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the installation tutorial of hadoop2.5 Test Environment.

Hadoop command classification:

Hadoop

Hdfs

Yarn

Mapred

Boot sequence:

Sbin/hadoop-daemon.sh start namenode

Sbin/hadoop-daemon.sh start datanode

Sbin/yarn-daemon.sh start resourcemanager

Sbin/yarn-daemon.sh start nodemanager

Sbin/mr-jobhistory-daemon.sh start historyserver

[histtoryserver related to mapreduce]

Use commands [commonly used]

Ps-ef | grep java:

View the startup classes and startup details.

And related configuration information

You can not start snn.

Sbin/hdfs dfsadmin-safemode get

File directory of hdfs:

Folders for user/root/-related frames

Use free-m to view memory usage

Note: it is not for use

Start-all.sh

Start-dfs.sh

Start-yarn.sh

I can't afford to order sn for the time being.

Free-m

Developed in linux.

Maven management. 3.0.5 [configure environment variables]

Mvn-version

Maven's warehouse is under the current user.

Mkdir tools/eclipse

Configure the integration of eclipse and maven plug-ins.

In eclipse:

Usersettings

And another setting.

Create a folder for src/main/source.

Put the file in classpath. Build path configure build path/source

Configure the pom file.

At this point, I believe that you have a deeper understanding of the "installation tutorial of hadoop2.5 Test Environment". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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