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Hadoop自动化安装脚本

2016-09-29 14:51 232 查看

参考资料和说明

参考资料: hadoop-2.3.0详细安装过程

码云GIT: hadoop-2.4.0家族自动化安装脚本 》》》 获取邀请码

版本信息: hadoop-2.4.0-x64、hive-1.2.1、Zookeeper-3.4.5、Hbase-0.98.21

你没看错,这就是2.4.0版本的安装脚本,虽然参考的是2.3.0的。

安装环境

虚拟机软件: VirtualBox-4.3.8-92456-Win.exe

虚拟机系统: CentOS-6.5-x86_64-bin-DVD1.iso,64位,分配1CPU,2G内存

Hadoop版本: hadoop-2.4.0-64bit.tar.gz 下载

Nginx文件服务器: nginx-1.10.0.zip Windows版本,解压即用,主要用来提供文件下载。

主要说一下这些脚本都是干什么的,具体安装过程请到git中查看脚本内容。

执行脚本

sloth/linux/hadoop/sln-2.4.0.sh

hadoop自动安装的主要入口,以root用户执行,操作示例如下:

Last login: Wed Sep 28 15:49:27 2016 from 172.16.4.102
[root@name00 ~]# cd /home/install/hadoop/
[root@name00 hadoop]# ./sln-2.4.0.sh
./sln-2.4.0.sh 错误:请传入参数,(1、类型:name/node;2、机器名:name00/node01;3、机器IP)!
例如:./sln-2.4.0.sh name name00 127.0.0.1
[root@name00 hadoop]# ./sln-2.4.0.sh node node04 172.16.117.4
参数确认: 类型:node   机器名: node04    机器IP:172.16.117.4
继续/跳过(Y/N):y
开始安装……
SSH链接慢?(Y/N):
跳过……
授权公钥……继续/跳过(Y/N):
跳过……
下载脚本……继续/跳过(Y/N):
跳过……
删除已rpm安装的软件……继续/跳过(Y/N):
跳过……
安装java……继续/跳过(Y/N):
跳过……
安装mysql……继续/跳过(Y/N):
跳过……
安装hadoop……继续/跳过(Y/N):
跳过……
安装hive……继续/跳过(Y/N):
跳过……
安装zookeeper……继续/跳过(Y/N):
跳过……
安装hbase……继续/跳过(Y/N):
跳过……
设置环境变量……继续/跳过(Y/N):
跳过……
立即加入Hadoop集群……继续/跳过(Y/N):
跳过……
[root@name00 hadoop]#


允许用户交互,根据需要选择安装。

测试和监控

# 切换用户
su hadoop
# 启动所有
cd /home/hadoop/src/hadoop-2.4.0/sbin/;./start-all.sh
# 停止所有
cd /home/hadoop/src/hadoop-2.4.0/sbin/;./stop-all.sh


验证

hadoop fs -ls hdfs://name00:9000 /
hadoop fs -mkdir hdfs://name00:9000 /testfolder


mapreduce例子

cd /home/hadoop/src/hadoop-2.4.0/share/hadoop/mapreduce/
hadoop fs -copyFromLocal /home/logs/hive/hive.log /input/hive.log
hadoop fs -ls /input
hadoop jar hadoop-mapreduce-examples-2.4.0.jar wordcount /input/hive.log /wordout
hadoop fs -ls /wordout
hadoop fs -tail /wordout/part-r-00000


web监控

服务器状态

http://name00:50070/dfshealth.html

集群信息

http://name00:8088/cluster

查看所有日志信息

http://name00:50070/logs/

问题或期望:

1. Hadoop所有节点两两间无秘访问(已解决)

hadoop需要在各个节点创建一个用户,并保证用户之间能够无秘访问,互联互通,虽然现在能够用脚本自动生成公钥,并将公钥分发给各个节点,但是两两节点间第一次登录访问还是需要确认和输入密码,节点少当然没问题,但是节点多了,一个个去确认也麻烦,求解决方案!!!

如下,新增节点,启动节点的时候需要输入确认

[hadoop@node11704 ~]$ cd /home/hadoop/src/hadoop-2.4.0/sbin/;./start-yarn.sh
starting yarn daemons
starting resourcemanager, logging to /home/hadoop/src/hadoop-2.4.0/logs/yarn-hadoop-resourcemanager-node11904.out
The authenticity of host 'node11901 (172.16.119.1)' can't be established.
RSA key fingerprint is db:e7:f0:db:d7:f7:f7:98:c2:b6:73:ec:a9:6e:0e:9c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'node11902 (172.16.119.2)' can't be established.
RSA key fingerprint is db:e7:f0:db:d7:f7:f7:98:c2:b6:73:ec:a9:6e:0e:9c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'node11703 (172.16.117.3)' can't be established.
RSA key fingerprint is db:e7:f0:db:d7:f7:f7:98:c2:b6:73:ec:a9:6e:0e:9c.
Are you sure you want to continue connecting (yes/no)? The authenticity of host 'node11704 (172.16.117.4)' can't be established.
RSA key fingerprint is db:e7:f0:db:d7:f7:f7:98:c2:b6:73:ec:a9:6e:0e:9c.
Are you sure you want to continue connecting (yes/no)? yes
node11901: Warning: Permanently added 'node11901,172.16.119.1' (RSA) to the list of known hosts.
node11901: nodemanager running as process 1809. Stop it first.
yes
node11902: Warning: Permanently added 'node11902,172.16.119.2' (RSA) to the list of known hosts.
node11902: nodemanager running as process 1755. Stop it first.
yes
node11703: Warning: Permanently added 'node11703,172.16.117.3' (RSA) to the list of known hosts.
node11703: nodemanager running as process 2169. Stop it first.
yes
node11704: Warning: Permanently added 'node11704,172.16.117.4' (RSA) to the list of known hosts.
node11704: starting nodemanager, logging to /home/hadoop/src/hadoop-2.4.0/logs/yarn-hadoop-nodemanager-node11704.out
[hadoop@node11704 sbin]$ jps
2767 NodeManager
2824 Jps


[b]解决方法:[/b]

ssh加速,自动添加到know_hosts

[root@xytr1 ~]# ssh 192.168.5.56
The authenticity of host '192.168.5.56 (192.168.5.56)' can't be established.
RSA key fingerprint is a1:7f:35:ec:1a:5e:33:df:e8:82:56:cf:b6:99:b6:b9.
Are you sure you want to continue connecting (yes/no)? yes ß 这里一定要确认才能通过
Warning: Permanently added '192.168.5.56' (RSA) to the list of known hosts.
Last login: Tue Jul 13 16:29:52 2010 from linux1

解决方案是,把 本地 的ssh客户端配置文件 ssh_config 做修改
[root@xytr1 ~]# vi /etc/ssh/ssh_config
找到:
#   StrictHostKeyChecking ask
修改为
StrictHostKeyChecking no

这样下次就不会出现需要确认的提示了。


2. 下载更新脚本

目前的实现方式如下

read -p "下载脚本……继续/跳过(Y/N):" isY
if [ "${isY}" == "y" ] || [ "${isY}" == "Y" ];then
##下载脚本,并删除已rpm安装的软件
ssh root@$3 "mkdir -p /home/install"
## 下载脚本
#ssh root@$3 "cd /home/install;wget -N -r -nH -np -k -L -p $URL_SHELL" #层级下载有点问题
## 下载脚本包
ssh root@$3 "cd /home/install;rm -f linux.zip;wget $URL_SHELL/linux.zip"
## 解压并提权
ssh root@$3 "cd /home/install;unzip -o linux.zip;chmod a+x /home/install -R"
else
echo '                  跳过……'
fi


需要先在windows下打包一个所有脚本的zip包,再通过wget命令下载,我希望直接从文件服务器遍历下载更新过的脚本,并覆盖,这样就不用每次更新一个脚本都要手动打包一次。

原来我尝试过一次

## 下载脚本
ssh root@$3 "cd /home/install;wget -N -r -nH -np -k -L -p $URL_SHELL"


但是这个命令本地执行没问题,但远端执行就返回错误,会中断整个安装脚本,所以才改成下载压缩包的。
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