• 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)

      

      注。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。

     

    复制代码
    [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 ~]$
    复制代码

     

     

     

      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。

     

    复制代码
    [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 ~]$ 
    复制代码

    复制代码
    [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 ~]$ 
    复制代码

    复制代码
    [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 ~]$ 
    复制代码

     得到

    复制代码
    [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]$ 
    复制代码

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

    复制代码
    [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]$ 
    复制代码

      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

    复制代码
    [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]$ 
    复制代码

     解压jdk

     

     删除jdk压缩包,并赋予用户和用户组。

    复制代码
    [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]$ 
    复制代码

    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

    复制代码
    [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 ~]$ 
    复制代码

      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 

     

     

    复制代码
    # /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
    复制代码

     

     

     

    * 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)

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  • 原文地址:https://www.cnblogs.com/wangsongbai/p/9116086.html
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