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从零教你如何获取hadoop2.4源码并使用eclipse关联hadoop2.4源码

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pig2

发布时间: 2014-6-23 19:04

正文摘要:

问题导读： 1.如何通过官网src包，获取hadoop的全部代码 2.通过什么样的操作，可以查看hadoop某个函数或则类的实现？ 3.maven的作用是什么？我们如果想搞开发，研究源码对我们的帮助很大。不明白原 ...

Victor-Shy 发表于 2014-10-31 15:11:32

呼，按着楼主的大作终于OK了，，不过2确实比1麻烦好多的说

gogaobin 发表于 2014-8-7 14:33:15

[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.hadoop:hadoop-maven-plugins:2.4.0:prot
oc (compile-protoc) on project hadoop-common: org.apache.maven.plugin.MojoExecut
ionException: 'protoc --version' did not return a version -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit
ch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionE
xception
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command

[ERROR] mvn <goals> -rf :hadoop-common

这个错误是怎么回事，已经正确安装protoc

SuperDove 发表于 2016-8-25 13:47:34

安装的途中，现在jdk的版本是1.8了，安装hadoop项目，不能用1.8，被坑的不行，只能去oracle官网下载jdk1.7，注意，还要改变自己电脑原先配置的环境变量JAVA_HOME的地址。
在安装MaxTemperature这个项目的时候缺少org.apache.hadoop.mapreduce这个包，找了一天没找到，结果要去下载hadoop-0.20.203.0rc1.tar.gz这个包下载地址http://archive.apache.org/dist/h ... .20.203.0rc1.tar.gz
新手，学习遇见的问题，希望后面学习的时候不要找东西找不到

quguiliang 发表于 2016-6-26 19:45:16

支持支持

hhenking 发表于 2016-5-6 16:43:40

楼主2.7.2里没有MVN文件如何升级关联不掉源码

ssxssx 发表于 2016-4-15 16:51:14

非常不错啊

戴着草帽的猫 发表于 2016-3-1 14:08:44

123221321

发光体 发表于 2016-2-22 21:26:06

运行

mvn eclipse:eclipse -DskipTests 出错

[ERROR] Failed to execute goal on project hadoop-nfs: Could not resolve dependen
cies for project org.apache.hadoop:hadoop-nfs:jar:2.2.0: Could not transfer arti
fact junit:junit:jar:4.8.2 from/to apache.snapshots.https (https://repository.ap
ache.org/content/repositories/snapshots): Connect to repository.apache.org:443 [
repository.apache.org/140.211.11.112] failed: Connection timed out: connect -> [
Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e swit
ch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please rea
d the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyReso
lutionException
[ERROR]
[ERROR] After correcting the problems, you can resume the build with the command

[ERROR] mvn <goals> -rf :hadoop-nfs

明明写命令的位置正确啊。求大神帮助啊。

执行第二个命令总是出错，写命令的位置对着了，也出错