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Cloudera Manager安装之Cloudera Manager安装前准备(CentOS6.5)(一)

 

 

 

 

 

 

 

 

Cloudera Manager安装前准备

(一)机器准备

  192.168.80.148   clouderamanager01  (部署ClouderaManager-server和Mirror server)  (部署Agent)     (分配1G,我这里只是体验过程,当然你可以分配更多或更小) 

  192.168.80.149   clouderamanager02    (部署Agent)                      (分配1G,我这里只是体验过程,当然你可以分配更多或更小)

  192.168.80.150   clouderamanager03   (部署Agent)                      (分配1G,我这里只是体验过程,当然你可以分配更多或更小)

  

 

  。我这里,因为安装了两种情况。所以在写博客时,后面全部是用  clouderamanager01、  clouderamanager02和  clouderamanager03(注意是小写)!!! 

 

 

 

 

  下面这种,也是可以的

  192.168.80.148   clouderamanager01  (部署ClouderaManager-server和Mirror server)     (分配1G,我这里只是体验过程,当然你可以分配更多或更小) 

  192.168.80.149   clouderamanager02    (部署Agent)                      (分配1G,我这里只是体验过程,当然你可以分配更多或更小)

  192.168.80.150   clouderamanager03   (部署Agent)                      (分配1G,我这里只是体验过程,当然你可以分配更多或更小)

  192.168.80.151   clouderamanager04  (部署Agent)                      (分配1G,我这里只是体验过程,当然你可以分配更多或更小)

 

 

 

 

 

 

 

 

说白了,就是在clouderamanager01上安装了ClouderaManger。

    就是在clouderamanager01上安装了cdh单节点集群。

    就是在clouderamanager01、clouderamanager02和clouderamanager03上安装了cdh的3节点集群。

 

 

 

 

 

(二)机器的部署配置

  这里我采用克隆的方式,当然大家也可以单独搭建linux虚拟机。

VMware workstation 11 的下载

VMWare Workstation 11的安装

CentOS 6.5的安装详解

CentOS 6.5安装之后的网络配置

CentOS 6.5静态IP的设置(NAT和桥接联网方式都适用)

CentOS常用命令、快照、克隆大揭秘

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(1)修改主机名

  现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02、clouderaManager03和clouderaManager04是一样的。当然我也可以输入命令来查看一下主机名,我们输入hostname,我们发现主机名就是clouderaManager01,那么接下来我们就来修改一下主机名。

  常见的有三种方法一种是临时性的修改,但是当机器重启之后就会恢复原来的值,比如我们试一下。

 

 

 

 

 

 还有一种方法就是永久修改,我们直接修改配置文件,我们直接修改/etc/sysconfig/network

 

  实际上还有一种方法,修改/etc/hosts,他对网络中的主机名起作用,但是对系统本身(也就是本机)不起作用。他和第一种的效果是一样的。实际上我们一般用这个来配置主机名和IP之间的对应关系。

  我这里采用第二种方法。改完之后没有变化,我们使用reboot命令重启一下机器就可以了。

 

 

 

(2)Linux虚拟机的网络配置和系统配置

  我这里,仅拿clouderaManager01来说,其他的clouderaManager02、clouderaManager03和clouderaManager04是一样的。

  (1)ping回环地址:能ping通,说明虚拟机的网络协议是好的。

 

 

 

 

 

 

 

(2)ping网关

  点击“编辑”——》“虚拟网络编辑器”

 

 

 但是这里边要注意一个问题,因为我们是克隆的。所以我们还要改一下MAC地址(就是我们硬件的地址,用来定义网络设备的位置),因为我们新的MAC地址和我们网卡配置里的MAC地址不一致,所以会导致网络连接不上。

  所以我们先来查看一下我们新的MAC地址

  我们输入vi /etc/udev/rules.d/70-persistent-net.rules(如果你是完全克隆,这个文件里应该包含eth0和eth1,我们将eth0配置删除,只保留eth1,记录该配置对应的MAC地址,并将eth1改名为eth0

 

 

 

 接下来修改网卡vi /etc/sysconfig/network-scripts/ifcfg-eth0

 

  你要是新搭建的Linux虚拟机的时候只需要把ONBOOT 的no改为yes就行,(开启我们的网卡,我们才能够看到我们的IP地址,BOOTPROTO=dhcp,指定获取IP的方法,dhcp(动态主机配置协议)还有一种是static ,静态的)  

  改回dhcp之后要重启一下,否则还是查看不到IP地址。(或者用service network restart命令)

  OK,前面的修改完之后,下面我们就输入ifconfig来查看一下IP,然后我们ping IP

 

 

 

 

 接下来我们再来ping www.baidu.com

 OK,都能ping通,这就说明我们已经和外部网络打通了。

 

 

 

 

  (3)X-shell远程连接

     Xmanager Enterprise *安装步骤

 

  我这里,仅拿clouderaManager01来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

 

(4)用户设置:hadoop用户

      新建用户组、用户、用户密码、删除用户组、用户(适合CentOS、Ubuntu)

   我这里,是新建的hadoop用户。

  我这里,仅拿clouderaManager01来说,其他的clouderaManager02、clouderaManager03和clouderaManager04是一样的。

 

 

 

 

 

(5)为hadoop用户设置sudo权限

  在root用户下,输入visudo打开文件

  在文件末尾(按快捷键,Shift + g)添加hadoop ALL=(ALL) NOPASSWD:ALL

hadoop ALL=(ALL) NOPASSWD:ALL

  我这里,仅拿clouderaManager01来说,其他的clouderaManager02、clouderaManager03和clouderaManager04是一样的。

 

 

 

 

 

 

 

(6)配置静态IP  

  现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

vi  /etc/sysconfig/network-scripts/ifcfg-eth0

 

 

 

 

 

 

 

 

 

(7)查看并关闭防火墙

CentOS下的防火墙关闭

  先查看一下防火墙状态

service iptables status

  如果防火墙在运行,就关闭,也有两种方法。

    一种是临时关闭

service iptables stop

    一种是永久关闭

chkconfig iptables off

  这里我采用永久性关闭。

 

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

 

 

(8)关闭SELINUX

     hadoop 50070 无法访问问题解决汇总

  sudo vi /etc/selinux/config

  把SELINUX改为disabled

  然后重启reboot。

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

 

 

(9)相关服务的安装

  如果没有安装的话可以使用下面的命令安装一下。

[root@clouderaManager01 hadoop]# yum -y install lrzsz

[root@clouderaManager01 hadoop]# yum install -y openssh-clients

 

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

 (10)时钟同步

[root@clouderaManager01 hadoop]# cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
cp: overwrite `/etc/localtime'? y
[root@clouderaManager01 hadoop]# yum -y install ntp

 

 

 

 

[root@clouderaManager01 hadoop]# cd /usr/share/zoneinfo/Asia/
[root@clouderaManager01 Asia]# ntpdate pool.ntp.org
 6 Apr 20:30:19 ntpdate[2938]: step time server 173.255.215.209 offset -86417.188942 sec
[root@clouderaManager01 Asia]# date
Thu Apr  6 20:30:23 CST 2017
[root@clouderaManager01 Asia]# 

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

 

 

(11)修改hosts文件

  vi /etc/hosts

在里面添加主机名和IP之间的对应关系

192.168.80.148  clouderaManager01
192.168.80.149  clouderaManager02
192.168.80.150  clouderaManager03

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

(12)配置ssh免密码登录 (对于这一步,其实可以不做,因为,在CM时会自动安装,大家可以跳过)

 

  关于这一步,请移步,先看看再说,细加小心。

hadoop-2.6.0.tar.gz的集群搭建(5节点)

  这里我以clouderaManager01为例来配置ssh。拿这个来说,其他的clouderaManager02、clouderaManager03和clouderaManager04是一样的。

 

[hadoop@clouderaManager01 ~]$ pwd
/home/hadoop
[hadoop@clouderaManager01 ~]$ mkdir .ssh
[hadoop@clouderaManager01 ~]$ ssh-keygen -t rsa
Generating public/private rsa key pair.
Enter file in which to save the key (/home/hadoop/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/hadoop/.ssh/id_rsa.
Your public key has been saved in /home/hadoop/.ssh/id_rsa.pub.
The key fingerprint is:
cd:51:91:1e:95:47:b0:44:2e:fe:75:a5:ac:44:76:86 hadoop@clouderaManager01
The key's randomart image is:
+--[ RSA 2048]----+
|            o==+.|
|           .o+...|
|          ..E.=..|
|         o =.= ..|
|        S o o o o|
|           . o ..|
|            . .  |
|                 |
|                 |
+-----------------+
[hadoop@clouderaManager01 ~]$ cd .ssh
[hadoop@clouderaManager01 .ssh]$ ls
id_rsa  id_rsa.pub
[hadoop@clouderaManager01 .ssh]$ cat id_rsa.pub >> authorized_keys
[hadoop@clouderaManager01 .ssh]$ ls
authorized_keys  id_rsa  id_rsa.pub
[hadoop@clouderaManager01 .ssh]$ 

[hadoop@clouderaManager01 .ssh]$ ls
authorized_keys  id_rsa  id_rsa.pub
[hadoop@clouderaManager01 .ssh]$ cd ..
[hadoop@clouderaManager01 ~]$ chmod 700 .ssh
[hadoop@clouderaManager01 ~]$ chmod 600 .ssh/*
[hadoop@clouderaManager01 ~]$ ssh clouderaManager01
The authenticity of host 'clouderamanager01 (192.168.80.148)' can't be established.
RSA key fingerprint is 99:42:d9:30:7a:ea:e5:db:9d:ae:53:42:ea:ea:1a:75.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager01,192.168.80.148' (RSA) to the list of known hosts.
[hadoop@clouderaManager01 ~]$ exit;
logout
Connection to clouderaManager01 closed.
[hadoop@clouderaManager01 ~]$ ssh clouderaManager01
Last login: Thu Apr  6 20:37:16 2017 from clouderamanager01
[hadoop@clouderaManager01 ~]$ exit;
logout
Connection to clouderaManager01 closed.
[hadoop@clouderaManager01 ~]$

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  将所有节点(clouderaManager02、clouderaManager03和clouderaManager04)中的共钥id_ras.pub拷贝到clouderaManager01中的authorized_keys文件中。

 

[hadoop@clouderaManager02 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@clouderaManager01 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'clouderamanager01 (192.168.80.148)' can't be established.
RSA key fingerprint is 99:42:d9:30:7a:ea:e5:db:9d:ae:53:42:ea:ea:1a:75.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager01,192.168.80.148' (RSA) to the list of known hosts.
hadoop@clouderamanager01's password: 
[hadoop@clouderaManager02 ~]$ 

 

 

 

 

[hadoop@clouderaManager03 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@clouderaManager01 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'clouderamanager01 (192.168.80.148)' can't be established.
RSA key fingerprint is 99:42:d9:30:7a:ea:e5:db:9d:ae:53:42:ea:ea:1a:75.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager01,192.168.80.148' (RSA) to the list of known hosts.
hadoop@clouderamanager01's password: 
[hadoop@clouderaManager03 ~]$ 

 

 

 

 

 

[hadoop@clouderaManager04 ~]$ cat ~/.ssh/id_rsa.pub | ssh hadoop@clouderaManager01 'cat >> ~/.ssh/authorized_keys'
The authenticity of host 'clouderamanager01 (192.168.80.148)' can't be established.
RSA key fingerprint is 99:42:d9:30:7a:ea:e5:db:9d:ae:53:42:ea:ea:1a:75.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager01,192.168.80.148' (RSA) to the list of known hosts.
hadoop@clouderamanager01's password: 
[hadoop@clouderaManager04 ~]$ 

 

 

 得到

[hadoop@clouderaManager01 ~]$ cd .ssh
[hadoop@clouderaManager01 .ssh]$ ls
authorized_keys  id_rsa  id_rsa.pub  known_hosts
[hadoop@clouderaManager01 .ssh]$ cat authorized_keys 
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAswjj3hTe9kqHOIA0vBu567OWLvEASOlum5NceSXrTFbL/9oG4mWZPcHJrgfLMEkHeJt+ZzT/7PtnDk2VjZS8cRBTbAxv3FQoqVLZtfZh9h+NfDr7H9RA8H8ksZL8qWB3zmhZ2nGCI+4ZVn9YtTKMgOoTiEzTWfv41k7WA4KWJYX7NqziOGzxqegpKOLK2Ec7vQuXq8zlSRW1iWMwyMdQtJK2mP66nWKrgVx5SQjipcJ+fDqcqghGYBj1kWfRV4xSeCQrdk/qIMO6PaLWKqUXSUnBP9HD/0+pDRrCCS/EaKpAs0YiiPu8MfGe3nLEqny4vbUtv61+zOlQ7OeKYWxq1Q== hadoop@clouderaManager01
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAx2qIKmR564eQK+Lnp59oEvbB4HrBtxRxbTBNViO5tC4yDst1vwuPo23t9BlmMqsbCWSsAkEo6Vj3UA/qwdqKDFK1ssLRgzVG3OsqC7WrlEuSy7V27EpnfEFMkbXBiTrnRcbKNu3wdzgJZ7Mc8Yd0CqZ5c6UyPEzrgBou489fLyzKNSov+uzkahw1l7S77/lh03rbq7YQ/7gEK23tZgofsYFf+k8w6pmDpvl/mSv2156PkWMFQr9yLGen/q6kKsKqg6KT7B06a6zlB6khom+ou5p+dZDiR5AZkI3aNF0brZ7+OTckWjuh2xxgy9ZbRxy/mb6YNwjEl5mTlfFQkkQasQ== hadoop@clouderaManager02
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAxYvoxWFWM9J/eyoe+O9EfA3wBe4oHQs6PZf7e5sQSoQJV+0gVufezZ+iWxGcL92uTNDE6PcrrfMWPv68Fl5mXsXrhVX8gJA/RKfeVnfLdNYI5AKmqniVq0h+qYv1wz/hOcaq/mNp3dHR3cyf+xjUc+gTcOIvJsJmBEVr5YtsfMCqVzjZZYjChEJ+jiRlf1fIwiogE0M8ncrqGDjS6aPDV3vsceHOspuuXD0APEdxb9YUVlAUXpXNADpmz3P/2V1aHbzNqFZWHcdyUtob7fABWQnuaCJPvaUXNGDBXt7Kv18d0Kbix4q1+o67nkx7B2nAQZT4D3EV3XnZLh6Gvym4Mw== hadoop@clouderaManager03
ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwGScqrw5oMaAj3MLS9wZLkFFLZH8+xXG2f5jM7SNFNcWTO4LAefvrZGS2uaWFPk0PTS+f2dfPX/r0etOFvIBobOmBfrcMByLj954sGFvlD/lU7sPjUFh/OwcXo3UxJyCHnwE4pkVpcmpmyubfzYqKyo8eRMBKLQQx9KlV9MXj1ADe/iwckGXMCG8bzz0/S92S9Y8FxhbTdXhUnVshtn1oJYPr+SxUk4lFed+k6hQah3lXfjd3iJ+uhRfSBkpV9PkSeDyD1h+8ymXNCkZcgcYRXclWziv8FR5f+J2NM5ogvDlGkkcjYKSa4NvCmNsrAPvDEKHnbhV2FbaWgcIC6Tgpw== hadoop@clouderaManager04
[hadoop@clouderaManager01 .ssh]$ 

 

 

 

 

 

 

 

然后将中clouderaManager01的authorized_keys文件分发到所有节点上面。

[hadoop@clouderaManager01 .ssh]$ scp -r authorized_keys hadoop@clouderaManager02:~/.ssh/
The authenticity of host 'clouderamanager02 (192.168.80.149)' can't be established.
RSA key fingerprint is 1c:56:a2:f4:6e:5b:bc:50:cf:0c:c9:56:59:e6:63:0b.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager02,192.168.80.149' (RSA) to the list of known hosts.
hadoop@clouderamanager02's password: 
authorized_keys                                                                                                                                              100% 1624     1.6KB/s   00:00    
[hadoop@clouderaManager01 .ssh]$ scp -r authorized_keys hadoop@clouderaManager03:~/.ssh/
The authenticity of host 'clouderamanager03 (192.168.80.150)' can't be established.
RSA key fingerprint is 59:0d:16:18:d0:2c:39:ff:8e:87:3a:31:92:55:86:f4.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager03,192.168.80.150' (RSA) to the list of known hosts.
hadoop@clouderamanager03's password: 
authorized_keys                                                                                                                                              100% 1624     1.6KB/s   00:00    
[hadoop@clouderaManager01 .ssh]$ scp -r authorized_keys hadoop@clouderaManager04:~/.ssh/
The authenticity of host 'clouderamanager04 (192.168.80.151)' can't be established.
RSA key fingerprint is 02:48:fd:f0:15:25:71:a4:ae:89:5d:3d:18:e9:64:b9.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'clouderamanager04,192.168.80.151' (RSA) to the list of known hosts.
hadoop@clouderamanager04's password: 
authorized_keys                                                                                                                                              100% 1624     1.6KB/s   00:00    
[hadoop@clouderaManager01 .ssh]$ 

  大家通过ssh 相互访问,如果都能无密码访问,代表ssh配置成功。这里很简单,我就不多赘述了。

 

 

 

 

 

(13)JDK的安装(建议1.8)(对于这一步,其实可以不做,因为,在CM时会自动安装,大家可以跳过)(但是要先卸载linux系统自带的openjdk,因为自动也是安装的是orcal公司的)

 

  用文件上传工具FileZila把jdk1.8的tar包上传到我们指定的软件安装目录下(比如:/home/hadoop/app或者/usr/local/jdk),或者使用rz命令上传也行,但是要切换到root用户下,或者在hadoop用户下使用sudo rz

  jdk-8u60-linux-x64.tar.gz

  注意,先记得。

Centos 6.5下的OPENJDK卸载和SUN的JDK安装、环境变量配置

 

[root@clouderaManager01 local]# mkdir jdk
[root@clouderaManager01 local]# chown -R hadoop:hadoop jdk

 

 

 

[hadoop@clouderaManager01 jdk]$ pwd
/usr/local/jdk
[hadoop@clouderaManager01 jdk]$ ls
[hadoop@clouderaManager01 jdk]$ rz

[hadoop@clouderaManager01 jdk]$ ll
total 176996
-rw-r--r-- 1 hadoop hadoop 181238643 Apr  7 09:17 jdk-8u60-linux-x64.tar.gz
[hadoop@clouderaManager01 jdk]$ 

 

 

 

 

 

 解压jdk

 

 

 

 

 

 删除jdk压缩包,并赋予用户和用户组。

[hadoop@clouderaManager01 jdk]$ pwd
/usr/local/jdk
[hadoop@clouderaManager01 jdk]$ ll
total 177000
drwxr-xr-x 8 hadoop hadoop      4096 Aug  5  2015 jdk1.8.0_60
-rw-r--r-- 1 hadoop hadoop 181238643 Apr  7 09:17 jdk-8u60-linux-x64.tar.gz
[hadoop@clouderaManager01 jdk]$ rm jdk-8u60-linux-x64.tar.gz 
[hadoop@clouderaManager01 jdk]$ ll
total 4
drwxr-xr-x 8 hadoop hadoop 4096 Aug  5  2015 jdk1.8.0_60
[hadoop@clouderaManager01 jdk]$ 

 

 

 

 

 

配置jdk环境变量并使用source命令环境变量生效

 

#java
export JAVA_HOME=/usr/local/jdk/jdk1.8.0_60
export JRE_HOME=$JAVA_HOME/jre
export CLASSPATH=.:$JAVA_HOME/lib:$JRE_HOME/lib
export PATH=$PATH:$JAVA_HOME/bin

 

 

 

使用java -version命令查看JDK是否安装成功

 

[root@clouderaManager01 jdk]# source /etc/profile
[root@clouderaManager01 jdk]# su hadoop

  注意上面操作要在所有节点都执行

  

 

 

 

  (14)以及,我们还可以设置文件打开数量和用于最大进程数

  文件打开数量

    ulimit -a

[hadoop@clouderaManager01 ~]$ ulimit -a
core file size          (blocks, -c) 0
data seg size           (kbytes, -d) unlimited
scheduling priority             (-e) 0
file size               (blocks, -f) unlimited
pending signals                 (-i) 7685
max locked memory       (kbytes, -l) 64
max memory size         (kbytes, -m) unlimited
open files                      (-n) 1024
pipe size            (512 bytes, -p) 8
POSIX message queues     (bytes, -q) 819200
real-time priority              (-r) 0
stack size              (kbytes, -s) 10240
cpu time               (seconds, -t) unlimited
max user processes              (-u) 1024
virtual memory          (kbytes, -v) unlimited
file locks                      (-x) unlimited
[hadoop@clouderaManager01 ~]$ 

  默认是1024,为此,我们需要修改

 

 

 

  用户最大进程数

 

[hadoop@clouderaManager01 ~]$ ulimit -u
1024
[hadoop@clouderaManager01 ~]$ 

 

 

 

 

[hadoop@clouderaManager01 ~]$ sudo vi /etc/security/limits.conf 

 

 

 

 

# /etc/security/limits.conf
#
#Each line describes a limit for a user in the form:
#
#<domain>        <type>  <item>  <value>
#
#Where:
#<domain> can be:
#        - an user name
#        - a group name, with @group syntax
#        - the wildcard *, for default entry
#        - the wildcard %, can be also used with %group syntax,
#                 for maxlogin limit
#
#<type> can have the two values:
#        - "soft" for enforcing the soft limits
#        - "hard" for enforcing hard limits
#
#<item> can be one of the following:
#        - core - limits the core file size (KB)
#        - data - max data size (KB)
#        - fsize - maximum filesize (KB)
#        - memlock - max locked-in-memory address space (KB)
#        - nofile - max number of open files
#        - rss - max resident set size (KB)
#        - stack - max stack size (KB)
#        - cpu - max CPU time (MIN)
#        - nproc - max number of processes
#        - as - address space limit (KB)
#        - maxlogins - max number of logins for this user
#        - maxsyslogins - max number of logins on the system
#        - priority - the priority to run user process with
#        - locks - max number of file locks the user can hold
#        - sigpending - max number of pending signals
#        - msgqueue - max memory used by POSIX message queues (bytes)
#        - nice - max nice priority allowed to raise to values: [-20, 19]
#        - rtprio - max realtime priority
#
#<domain>      <type>  <item>         <value>
#

#*               soft    core            0
#*               hard    rss             10000
#@student        hard    nproc           20
#@faculty        soft    nproc           20
#@faculty        hard    nproc           50
#ftp             hard    nproc           0
#@student        -       maxlogins       4

# End of file

 

 

 

 

 

 

 

* soft nofile 65535
* hard nofile 65535
* soft nproc  32000
* hard nproc  32000

  同理,现在的主机名是clouderaManager01,拿这个来说,其他的clouderaManager02和clouderaManager03是一样的。

 

 

 

OK,到此为止我们的准备工作基本就都做好了,接下来我们就先来部署时间服务器和时间客户端工作。请移步,

Cloudera Manager安装之时间服务器和时间客户端(二)

posted @ 2017-04-06 19:10  大数据和AI躺过的坑  阅读(6211)  评论(0编辑  收藏  举报