hadoop2.x Source Code Compilation

Specific directory specifications, such as:

/opt/modules # Installation path for large software
/opt/softwares # Software source program installation package upload path
/opt/tools # Tool Installation path
/opt/datas #数据文件存放路径

1. MAVEN's installation

A. Creating Maven in the/opt/modules directory

B. Compress the apache-maven-3.0.5.tar.gz level into the/opt/maven/modules/maven

C. Configuring environment variables, # sudo vi/etc/profile

D. Verifying environment variables

2. Download the Hadoop source package, upload to the/opt/softwares directory, unzip to/opt/modules/hadoop

#tar-ZXVF hadoop-2.5.0-src.tar-c/opt/modules/hadoop

3. Use Maven to compile, first install some dependencies, Protobuffer

A precompiled error was found

Precompile the #sudo again./configure--prefix=/usr/local/protoc

Installation

Configuring the PROTOC environment variable/USR/LOCAL/PROTC

View

Verify #sudo VI Teacherproto.proto

The Teacherproto.java is found to be generated.

4. Install other dependencies

#sudo yum-y Install Openssl-devel ncurses-devel cmake

5. Compiling hadoop2.x

5. Change the Yum source to a aliyum image. Http://mirrors.aliyun.com/help/centos

A. Script First #vim update_yum_toali.sh

B. Writing a document

C. Implementation of the document

D. Updating the local cache

hadoop2.x Source Code Compilation