Hadoop Yarn(二)—— 创建Eclipse工程

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1. 安装环境介绍如下:
    系统:Ubuntu14.04
    Hadoop版本: hadoop-2.5.0(点击下载)
    Java版本:openjdk-1.7.0_55
    Eclipse版本: Release 4.4.0 (点击下载)
2. 把下载Hadoop源码包 hadoop-2.5.0-src.tar.gz 解压到工作目录(本文为/home/baisong),
    得到 hadoop-2.5.0-src 文件夹。
3. 安装Maven,命令如下:
    $ sudo apt-get install maven
4. 安装Google开源的序列化框架 Protocol Buffers。
   1) 下载 protobuf-2.5.0.tar.gz(点击下载),然后解压得到 protobuf-2.5.0 文件夹。
   2)  进入protobuf-2.5.0,输入下属命令:
        $ ./configure
       遇到如下错误:
      
       分析:此属于Ubuntu的常见错误,可以把常用的库全部下载,命令如下:
       $ sudo apt-get install build-essential
       然后再输入  $ ./configure 命令即可。
   3) 顺序执行下面三个命令。
        $ make
       $ make check
       $ sudo make install
   4) 查看Protocol版本号,检查是否安装成功。
       $ protoc --version
       遇到如下错误,如下:
      
      分析知是因为系统找不到lib库,修改 /etc/ld.so.conf 文件,添加 /usr/local/lib 。如下:
      $ sudo gedit /etc/ld.so.conf
      内容: include /etc/ld.so.conf.d/*.conf /usr/local/lib
      执行下述命令更新库文件路径,然后就能通过  $ protoc --version 命令查看版本号。
      $ sudo ldconfig
     
5. 编译Hadoop源码生成Jar包,无需编译native code、测试用例和生成文档,在/home/baisong/adoop-2.5.0-src目录下,输入下述命令:
    $ mvn package -Pdist -DskipTests -Dtar
    编译成功后,输出信息如下:
   
6. 生成Eclipse工程文件,命令如下:
    $ cd hadoop-maven-plugins     
    $ mvn install
    $ cd hadoop-2.5.0-src
    $ mvn eclipse:eclipse -DskipTests
    成功后的输出信息如下图:
   
7. 在Eclipse中导入源代码:”File“ >> "Import" >> "Existing Projects into Workspace",选择hadoop-2.5.0-src,然后确认。
     
    如上图所示,导入后遇到错误,共有59个错误,但总体上分为3类。解决方法如下:
    错误1: org.apache.hadoop.ipc.protobuf.× 无法解析
    解决方法如下,依次执行下述命令。
    $ cd hadoop-2.5.0-src/hadoop-common-project/hadoop-common/src/test/proto    //注释:进入该目录
    $ protoc --java_out=../java *.proto
    最后,刷新Eclipse中的所有工程。至此,只剩下 6 个错误。
    错误2:AvroRecord cannot be resolved to a type   TestAvroSerialization.java
    解决方法如下:
    首先,下载  avro-tools-1.7.4.jar(点击下载)。存放于 hadoop-2.5.0-src 目录中。
    然后执行下述命令:
    $ cd hadoop-2.5.0-src/hadoop-common-project/hadoop-common/src/test/avro
    $ java -jar ~/hadoop-2.5.0-src/avro-tools-1.7.4.jar compile schema avroRecord.avsc ../java
    最后,刷新Eclipse工程。只剩下 3个错误。
    错误3: Project 'hadoop-streaming' is missing required source ... Build Path Problem
    解决方法如下:
   右键 hadoop-streaming 项目->properties->左边Java Build Path->Source->选定错误项->右边Remove,如下图所示。
    
  至此,在Eclipse中创建Hadoop工程完成。

hadoop-2.2.0, 64 bit,下载 自己编译的64bit的hadoop-2.2.0,自己lab安装使用。 [INFO] Reactor Summary: [INFO] [INFO] Apache Hadoop Main ................................ SUCCESS [1.834s] [INFO] Apache Hadoop Project POM ......................... SUCCESS [1.621s] [INFO] Apache Hadoop Annotations ......................... SUCCESS [3.682s] [INFO] Apache Hadoop Assemblies .......................... SUCCESS [0.395s] [INFO] Apache Hadoop Project Dist POM .................... SUCCESS [3.610s] [INFO] Apache Hadoop Maven Plugins ....................... SUCCESS [3.311s] [INFO] Apache Hadoop Auth ................................ SUCCESS [12.206s] [INFO] Apache Hadoop Auth Examples ....................... SUCCESS [2.105s] [INFO] Apache Hadoop Common .............................. SUCCESS [4:23.593s] [INFO] Apache Hadoop NFS ................................. SUCCESS [5.952s] [INFO] Apache Hadoop Common Project ...................... SUCCESS [0.051s] [INFO] Apache Hadoop HDFS ................................ SUCCESS [6:23.935s] [INFO] Apache Hadoop HttpFS .............................. SUCCESS [52.247s] [INFO] Apache Hadoop HDFS BookKeeper Journal ............. SUCCESS [3:31.569s] [INFO] Apache Hadoop HDFS-NFS ............................ SUCCESS [4.749s] [INFO] Apache Hadoop HDFS Project ........................ SUCCESS [0.037s] [INFO] hadoop-yarn ....................................... SUCCESS [5:28.253s] [INFO] hadoop-yarn-api ................................... SUCCESS [40.635s] [INFO] hadoop-yarn-common ................................ SUCCESS [33.245s] [INFO] hadoop-yarn-server ................................ SUCCESS [0.092s] [INFO] hadoop-yarn-server-common ......................... SUCCESS [9.588s] [INFO] hadoop-yarn-server-nodemanager .................... SUCCESS [19.160s] [INFO] hadoop-yarn-server-web-proxy ...................... SUCCESS [3.881s] [INFO] hadoop-yarn-server-resourcemanager ................ SUCCESS [13.082s] [INFO] hadoop-yarn-server-tests .......................... SUCCESS [0.443s] [INFO] hadoop-yarn-client ................................ SUCCESS [5.192s] [INFO] hadoop-yarn-applications .......................... SUCCESS [0.102s] [INFO] hadoop-yarn-applications-distributedshell ......... SUCCESS [2.320s] [INFO] hadoop-mapreduce-client ........................... SUCCESS [0.096s] [INFO] hadoop-mapreduce-client-core ...................... SUCCESS [25.322s] [INFO] hadoop-yarn-applications-unmanaged-am-launcher .... SUCCESS [2.152s] [INFO] hadoop-yarn-site .................................. SUCCESS [0.140s] [INFO] hadoop-yarn-project ............................... SUCCESS [18.885s] [INFO] hadoop-mapreduce-client-common .................... SUCCESS [19.076s] [INFO] hadoop-mapreduce-client-shuffle ................... SUCCESS [2.650s] [INFO] hadoop-mapreduce-client-app ....................... SUCCESS [10.628s] [INFO] hadoop-mapreduce-client-hs ........................ SUCCESS [5.069s] [INFO] hadoop-mapreduce-client-jobclient ................. SUCCESS [6.721s] [INFO] hadoop-mapreduce-client-hs-plugins ................ SUCCESS [1.767s] [INFO] Apache Hadoop MapReduce Examples .................. SUCCESS [6.461s] [INFO] hadoop-mapreduce .................................. SUCCESS [3.936s] [INFO] Apache Hadoop MapReduce Streaming ................. SUCCESS [4.999s] [INFO] Apache Hadoop Distributed Copy .................... SUCCESS [7.547s] [INFO] Apache Hadoop Archives ............................ SUCCESS [2.099s] [INFO] Apache Hadoop Rumen ............................... SUCCESS [6.924s] [INFO] Apache Hadoop Gridmix ............................. SUCCESS [5.291s] [INFO] Apache Hadoop Data Join ........................... SUCCESS [5.463s] [INFO] Apache Hadoop Extras .............................. SUCCESS [3.394s] [INFO] Apache Hadoop Pipes ............................... SUCCESS [9.485s] [INFO] Apache Hadoop Tools Dist .......................... SUCCESS [2.280s] [INFO] Apache Hadoop Tools ............................... SUCCESS [0.027s] [INFO] Apache Hadoop Distribution ........................ SUCCESS [1:19.750s] [INFO] Apache Hadoop Client .............................. SUCCESS [10.594s] [INFO] Apache Hadoop Mini-Cluster ........................ SUCCESS [0.796s] [INFO] ------------------------------------------------------------------------ [INFO] BUILD SUCCESS [INFO] ------------------------------------------------------------------------ [INFO] Total time: 27:30.270s [INFO] Finished at: Sun Jan 03 09:07:12 PST 2016 [INFO] Final Memory: 124M/316M [INFO] ------------------------------------------------------------------------ 版本详情 [root@namenode bin]# ./hadoop version Hadoop 2.2.0 Subversion Unknown -r Unknown Compiled by root on 2016-01-03T16:40Z Compiled with protoc 2.5.0 From source with checksum 79e53ce7994d1628b240f09af91e1af4 This command was run using /home/hadoop/Desktop/hadoop-2.2.0-src/hadoop-dist/target/hadoop-2.2.0/share/hadoop/common/hadoop-common-2.2.0.jar
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