ubuntu18.04.2 hadoop3.1.2+zookeeper3.5.5高可用完全分布式集群搭建

ubuntu18.04.2 hadoop3.1.2+zookeeper3.5.5高可用完全分布式集群搭建

集群规划：

hostname	NameNode	DataNode	JournalNode	ResourceManager	Zookeeper
node01	√	√		√
node02	√	√
node03		√	√	√	√
node04		√	√		√
node05		√	√		√

准备工作:

首先克隆5台ubuntu虚拟机

vim /etc/netplan/01-network-manager-all.yaml修改网络配置

我的5台网络配置如下： (ps: 由于这次是家里台式, 所以网关和之前笔记本搭的那次不一样)

# Let NetworkManager manage all devices on this system
# node01
network:
  version: 2
  renderer: NetworkManager
  ethernets:
    ens33:
        dhcp4: no
        dhcp6: no
        addresses: [192.168.180.130/24]
        gateway4: 192.168.180.2
        nameservers:
            addresses: [114.114.114.114, 8.8.8.8]

# Let NetworkManager manage all devices on this system
# node02
network:
  version: 2
  renderer: NetworkManager
  ethernets:
    ens33:
        dhcp4: no
        dhcp6: no
        addresses: [192.168.180.131/24]
        gateway4: 192.168.180.2
        nameservers:
            addresses: [114.114.114.114, 8.8.8.8]

# Let NetworkManager manage all devices on this system
# node03
network:
  version: 2
  renderer: NetworkManager
  ethernets:
    ens33:
        dhcp4: no
        dhcp6: no
        addresses: [192.168.180.132/24]
        gateway4: 192.168.180.2
        nameservers:
            addresses: [114.114.114.114, 8.8.8.8]
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

  ethernets:
    ens33:
        dhcp4: no
        dhcp6: no
        addresses: [192.168.180.133/24]
        gateway4: 192.168.180.2
        nameservers:
            addresses: [114.114.114.114, 8.8.8.8]
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager

  ethernets:
    ens33:
        dhcp4: no
        dhcp6: no
        addresses: [192.168.180.134/24]
        gateway4: 192.168.180.2
        nameservers:
            addresses: [114.114.114.114, 8.8.8.8]

修改完毕后netplan apply 应用该网络配置, ping一下百度有连接网络配置就ok了。

修改主机名

vim /etc/hostname 将对应主机名分别修改为node01, niode02, node03, node04, node05

修改hosts文件

vim /etc/hosts 修改每台机器的hosts文件为如下:

127.0.0.1       localhost
192.168.180.130       node01
192.168.180.131       node02
192.168.180.132       node03
192.168.180.133       node04
192.168.180.134       node05

# The following lines are desirable for IPv6 capable hosts
::1     ip6-localhost ip6-loopback
fe00::0 ip6-localnet
ff00::0 ip6-mcastprefix
ff02::1 ip6-allnodes
ff02::2 ip6-allrouters

​ JDK配置

如果没有配置jdk请参考https://www.cnblogs.com/ronnieyuan/p/11461377.html

如果之前有下过别的版本的jdk请将jdk的tar包解压到/usr/lib/jvm, 比如我的jvm目录为如下：

drwxr-xr-x   4 root root 4096 9月  13 08:57 ./
drwxr-xr-x 133 root root 4096 9月  13 08:57 ../
lrwxrwxrwx   1 root root   25 4月   8  2018 default-java -> java-1.11.0-openjdk-amd64/
lrwxrwxrwx   1 root root   21 3月  27 04:57 java-1.11.0-openjdk-amd64 -> java-11-openjdk-amd64/
-rw-r--r--   1 root root 1994 3月  27 04:57 .java-1.11.0-openjdk-amd64.jinfo
drwxr-xr-x   9 root root 4096 4月  25 20:43 java-11-openjdk-amd64/
drwxr-xr-x   7 uucp  143 4096 12月 16  2018 jdk1.8/

然后再修改配置文件并选择jdk(指令在参考中已写)

jdk版本信息:

root@node01:~# java -version
java version "1.8.0_202"
Java(TM) SE Runtime Environment (build 1.8.0_202-b08)
Java HotSpot(TM) 64-Bit Server VM (build 25.202-b08, mixed mode)

免密登录

在每台机器上执行ssh-keygen -t rsa -P "" (记得enter)

示例

root@node01:~# ssh-keygen -t rsa -P ""
Generating public/private rsa key pair.
Enter file in which to save the key (/root/.ssh/id_rsa):
Created directory '/root/.ssh'.
Your identification has been saved in /root/.ssh/id_rsa.
Your public key has been saved in /root/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:el2s+e9UXxWjfGY1LS6RYD1CcHLmlXY+zJCopqRnuf0 root@node01
The key's randomart image is:
+---[RSA 2048]----+
|        ooB+.+ +o|
|         Bo.@ + *|
|         ..o % =.|
|      . o  .. X .|
|     o +S   o. .o|
|    . =. . +   .o|
|     o.o. +   . .|
|      ...  . .   |
|         .E .oo  |
+----[SHA256]-----+

在~目录下vim .ssh/authorized_keys:

将5台虚拟机公钥都存入该文件中, 每台的authorized_keys都一致

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDBw4yPomSFt009LQ3gvxv9vnAF4tSXrJvVBMkpoi78mLMspgxYW6q3vLCWFEHT6HOLrLAQ/+UjclXjuVEEUGVOyn+dgvX7fK+XCOuTVdTyJZ3nIGbHUZ5zB+KHcJN3tiGjFQ3vGEuUeVkQ4jkN5RXI33nSx1eUM/sOuXtQ7DdhJjAuBko7RNw/jjTXW8znv8l8n5hb4fu4B+2CLkIkO+1+mTu8hljE2B+pu4o6cIiY/RTb0hNRLSs6w7K7BJFa+3ZkeMtiLtI8MUaIQzo4/nv4FKa8/GSvxLyyBZGoaunAYsUn7qmlNxNjEXY7wojAnVkRMiyCsEXQU6cEsR//Zocz root@node01

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDg2AsPvf9TjjIVUlZutDqxFH579THtl6e7/SxYxHJ/def/T4dY5glzwW3AJ30Gcsw+k9E8PKiZIAiaQ7kU4/EmFK9LFhAuQx+glZS5GS88lXv7qSYOLmZtJPp0l4tgrIgk9u+PtZToCdlWpGLO2Xi3Dfggt//Lsl4Dqhl3dtrpZSjMGY7zkAd4fu696ri4rjv3kDciUdFNlKBFBkGA4RNFKylkPTlxLZfpqNU2pkZtBySHsGbEHMvnMQ1KOXRoW7pVvZ4QveR/eiQVXqq+v53oZ5KUmC5jpp6Abe3PVa7tG6s2ZOSP9ikOuFKrwXWArjp5H4oaYZIF/UenhhIdjxh3 root@node02

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDwtqNeAwYLWqY5otArMcKd4iMBCpZ5cd+RyECunVnmeefuN1U53fR+h2UcS6/Jr84ZKlDmJ5+r9jgcBPIftbkGi9RE4aHEqo14sC3P4t6DODxNCI+enytx5/kw3gpKmxOdanrtojSWLdL+5v/h4qPt5e8AFfxqJ9HfZ5darXgRLWbkYcBADH51XvisY9Gf+DJKPjcD+3E8gMbHHdeYWt0crOkxbRVgnjmZVuWsYBRFH5x6ueR5SOHUC3WPzfeEdBvIeRddl4y1DvtvZZuVOxs1rQF59KdDSKSKt4s1lScZS1Kc57yXY2s+L6HrFqxfOO0u1pisfiDwDKvZDwKeMd3n root@node03

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC+QfivNznStFt8xCZ1Qav6jKdErir0VbNRN0nqJaXUe+KL8YmYygofKEZRGQHCpYY2/rM7Cla6Pl9HLoatbvi89OYVy7V3hnu7SJwrqbkAGOqxCzW+OGdV9GRvhi3LTwJMAKxSrXB73tKK9ZqJd7WrP7o7ibyYMAbUiJTc0qa4gSXxXTunUuF2hOG7D88/93bxXXqSI9AydWrXBVxzmrP7CipXFOBqVC/mA/8SEdbVxSK0oGwa9KAAm690onoVevOVtTXWcvKSE/57WM94KJMbIKM/ypxKtUqKrgKuMfBsgs31Zu1j3SDkFC3Vm8uGj4yKnpxsaVJOwuMoRYiW90tT root@node04

ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQDF/mqbRAwPusxpz5FA9FtIa97QJSuXjaRP+/37S7JvtCAh2FvgPBLIQeAdp7hvc/RFJ8WqDlQWj2UVpBsu2sn3Kg2VZ30qEghMLkMcCTtKknNX+U7SvBWCRoGojxl9lmi/Y1kkVNQUTRPQ8QeNGN2SvUi5A4Q+X1H6MEy16sLuamMlXqiIeqttY33odXj6oXI6OFqoE98FrNbTBrPwJFCk4Uhgnplbb0YE+4dbs9mVdR/iHpGm84WfvITe6Rn9Ry4K+Wo4C+Bms4dGfcO8eh8lrwSCff2IUIc877Zzc6ImYrdvZu7rvrCPyfNdoCJzA5wtExPoAfUbuN5T77ieLgWH root@node05

依次测试免密登录是否成功

成功案例：

root@node01:~# ssh root@192.168.180.131
The authenticity of host '192.168.180.131 (192.168.180.131)' can't be established.
ECDSA key fingerprint is SHA256:++PMZ5boD2CgToi43EdaCSLtNGdVFt0xxCBoAIkggqk.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added '192.168.180.131' (ECDSA) to the list of known hosts.
Welcome to Ubuntu 18.04.2 LTS (GNU/Linux 4.18.0-17-generic x86_64)

 * Documentation:  https://help.ubuntu.com
 * Management:     https://landscape.canonical.com
 * Support:        https://ubuntu.com/advantage

 * Canonical Livepatch is available for installation.
   - Reduce system reboots and improve kernel security. Activate at:
     https://ubuntu.com/livepatch

254 packages can be updated.
253 updates are security updates.

Your Hardware Enablement Stack (HWE) is supported until April 2023.
Last login: Sat Sep 14 08:44:54 2019 from 192.168.180.1
root@node02:~#

​ Zookeeper3.5.5安装

注：zookeeper只安装在node03, node04 和node05上

上传zookeeper3.5.5到/home/ronnie/soft目录下

root@node03:/home/ronnie/soft# ll
total 524532
drwxr-xr-x  2 root   root        4096 9月  14 09:51 ./
drwxr-xr-x 32 ronnie ronnie      4096 9月  14 08:39 ../
-rw-r--r--  1 root   root    10622522 9月  13 11:35 apache-zookeeper-3.5.5-bin.tar.gz
-rw-r--r--  1 root   root   332433589 9月  13 09:18 hadoop-3.1.2.tar.gz
-rw-r--r--  1 root   root   194042837 1月  18  2019 jdk-8u202-linux-x64.tar.gz

tar -zxvf apache-zookeeper-3.5.5-bin.tar.gz -C /opt/ronnie/ 将其解压至/opt/ronnie目录

修改zookeeper目录名：

cd /opt/ronnie
mv apache-zookeeper-3.5.5-bin/ zookeeper

创建并修改zookeeper配置文件

首先进入配置文件目录:

root@node03:/opt/ronnie# cd zookeeper/conf/
root@node03:/opt/ronnie/zookeeper/conf# ll
total 20
drwxr-xr-x 2 2002 2002 4096 4月   2 21:05 ./
drwxr-xr-x 6 root root 4096 9月  14 09:54 ../
-rw-r--r-- 1 2002 2002  535 2月  15  2019 configuration.xsl
-rw-r--r-- 1 2002 2002 2712 4月   2 21:05 log4j.properties
-rw-r--r-- 1 2002 2002  922 2月  15  2019 zoo_sample.cfg

拷贝一份zoo_sample.cfg 为 zoo.cfg:

cp zoo_sample.cfg zoo.cfg
vim zoo.cfg

# The number of milliseconds of each tick
tickTime=2000
# The number of ticks that the initial
# synchronization phase can take
initLimit=10
# The number of ticks that can pass between
# sending a request and getting an acknowledgement
syncLimit=5
# the directory where the snapshot is stored.
# do not use /tmp for storage, /tmp here is just
# example sakes.
dataDir=/var/ronnie/zookeeper
# the port at which the clients will connect
clientPort=2181
# the maximum number of client connections.
# increase this if you need to handle more clients
#maxClientCnxns=60
#
# Be sure to read the maintenance section of the
# administrator guide before turning on autopurge.
#
# http://zookeeper.apache.org/doc/current/zookeeperAdmin.html#sc_maintenance
#
# The number of snapshots to retain in dataDir
#autopurge.snapRetainCount=3
# Purge task interval in hours
# Set to "0" to disable auto purge feature
#autopurge.purgeInterval=1
server.1=node03:2888:3888
server.2=node04:2888:3888
server.3=node05:2888:3888

将配置好的zookeeper目录传送给其他2台机子

scp -r /opt/ronnie/zookeeper/ root@192.168.180.133:/opt/ronnie/
scp -r /opt/ronnie/zookeeper/ root@192.168.180.134:/opt/ronnie/

在Datadir下创建myid， 并分别指定1, 2, 3

node03上的操作(其他同理), 若没有该目录需要先创建mkdir -p /var/ronnie/zookeeper/

cd /var/ronnie/zookeeper/
touch myid
echo 1 > myid

启动Zookeeper

/opt/ronnie/zookeeper/bin/zkServer.sh start
# 若启动成功
ZooKeeper JMX enabled by default
Using config: /opt/ronnie/zookeeper/bin/../conf/zoo.cfg
Starting zookeeper ... STARTED

# 检测状态
/opt/ronnie/zookeeper/bin/zkServer.sh status

# 这是一个从节点
ZooKeeper JMX enabled by default
Using config: /opt/ronnie/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: follower

# 这是一个主节点
ZooKeeper JMX enabled by default
Using config: /opt/ronnie/zookeeper/bin/../conf/zoo.cfg
Client port found: 2181. Client address: localhost.
Mode: leader

关闭zookeeper:

/opt/ronnie/zookeeper/bin/zkServer.sh stop

那么zookeeper到这里就安装完毕了

​ Hadoop配置

vim ~/.bashrc 添加hadoop路径

#HADOOP VARIABLES
export HADOOP_HOME=/opt/ronnie/hadoop-3.1.2
export PATH=$PATH:$HADOOP_HOME/bin
export PATH=$PATH:$HADOOP_HOME/sbin
export HADOOP_MAPRED_HOME=$HADOOP_HOME
export HADOOP_COMMON_HOME=$HADOOP_HOME
export HADOOP_HDFS_HOME=$HADOOP_HOME
export YARN_HOME=$HADOOP_HOME
export HADOOP_COMMON_LIB_NATIVE_DIR=$HADOOP_HOME/lib/native
export HADOOP_OPTS="-Djava.library.path=$HADOOP_HOME/lib"

source ~/.bashrc 使新配置生效(记得每台都要改)

hadoop version查看版本， 显示如下则hadoop路径配置成功:

Hadoop 3.1.2
Source code repository https://github.com/apache/hadoop.git -r 1019dde65bcf12e05ef48ac71e84550d589e5d9a
Compiled by sunilg on 2019-01-29T01:39Z
Compiled with protoc 2.5.0
From source with checksum 64b8bdd4ca6e77cce75a93eb09ab2a9
This command was run using /opt/ronnie/hadoop-3.1.2/share/hadoop/common/hadoop-common-3.1.2.jar

修改hadoop-env.sh, mapred-env.sh, yarn-env.sh中的JAVA_HOME路径, 没有就在底下添加

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/hadoop-env.sh

 53 # variable is REQUIRED on ALL platforms except OS X!
 54 export JAVA_HOME=/usr/lib/jvm/jdk1.8

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/mapred-env.sh

 47 # JDK
 48 export JAVA_HOME=/usr/lib/jvm/jdk1.8

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/yarn-env.sh

171 # JDK
172 export JAVA_HOME=/usr/lib/jvm/jdk1.8

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/core-site.xml配置core-site.xml文件

  1 <?xml version="1.0" encoding="UTF-8"?>
  4   Licensed under the Apache License, Version 2.0 (the "License");
  7
  8     http://www.apache.org/licenses/LICENSE-2.0
  9
 12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   See the License for the specific language governing permissions and
 14   limitations under the License. See accompanying LICENSE file.
 15 -->
 16
 17 <!-- Put site-specific property overrides in this file. -->
 18
 19 <configuration>
 20         <!-- 指定hdfs的nameservice名称 -->
 21         <property>
 22                 <name>fs.defaultFS</name>
 23                 <value>hdfs://ns</value>
 24         </property>
 25         <!-- 指定临时目录 -->
 26         <property>
 27                 <name>hadoop.tmp.dir</name>
 28                 <value>/var/ronnie/hadoop/tmp</value>
 29         </property>
 30         <!-- 指定zookeeper  -->
 31         <property>
 32                 <name>ha.zookeeper.quorum</name>
 33                 <value>node03:2181,node04:2181,node05:2181</value>
 34         </property>
 35         <!-- Namenode向JournalNode发起的ipc连接请求重试最大次数  -->
 36         <property>
 37                 <name>ipc.client.connect.max.retries</name>
 38                 <value>100</value>
 39                 <description>Indicates the number of retries a client will make to establish a server c    onnection.
 40                 </description>
 41         </property>
 42         <!-- Namenode向JournalNode发起的ipc连接请求的重试间隔时间 -->
 43         <property>
 44                 <name>ipc.client.connect.retry.interval</name>
 45                 <value>10000</value>
 46                 <description>Indicates the number of milliseconds a client will wait for before retryin    g to establish.
 47                 </description>
 48         </property>
 49         <!-- 开启回收功能, 并设置垃圾删除间隔(min)  -->
 50         <property>
 51                 <name>fs.trash.interval</name>
 52                 <value>360</value>
 53                 <description>
 54                         Trash deletion interval in minutes. If zero, the trash feature is diabled.
 55                 </description>
 56         </property>
 57         <!-- 设置垃圾检查点介个(min), 不设置的话默认和fs.trash.interval一样  -->
 58         <property>
 59                 <name>fs.trash.checkpoint.interval</name>
 60                 <value>60</value>
 61                 <description>
 62                         Trash checkpoint interval in minutes. If zero, the deletion interval is used.
 63                 </description>
 64         </property>
 65         <!-- 配置oozie时使用以下参数 -->
 66         <property>
 67                 <name>hadoop.proxyuser.deplab.groups</name>
 68                 <value>*</value>
 69         </property>
 70         <property>
 71                 <name>hadoop.proxyuser.deplab.hosts</name>
 72                 <value>*</value>
 73         </property>
 74 </configuration>

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/hdfs-site.xml修改hdfs-site.xml

  1 <?xml version="1.0" encoding="UTF-8"?>
  2 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  3 <!--
  4   Licensed under the Apache License, Version 2.0 (the "License");
  5   you may not use this file except in compliance with the License.
  6   You may obtain a copy of the License at
  7
  8     http://www.apache.org/licenses/LICENSE-2.0
  9
 10   Unless required by applicable law or agreed to in writing, software
 11   distributed under the License is distributed on an "AS IS" BASIS,
 12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   See the License for the specific language governing permissions and
 14   limitations under the License. See accompanying LICENSE file.
 15 -->
 16
 17 <!-- Put site-specific property overrides in this file. -->
 18
 19 <configuration>
 20         <!-- 指定hdfs的nameservice为ns, 需要和core-site.xml中的保持一致  -->
 21         <property>
 22                 <name>dfs.nameservices</name>
 23                 <value>ns</value>
 24         </property>
 25         <!-- ns下有nn1, nn2 两个NameNode  -->
 28                 <value>nn1,nn2</value>
 29         </property>
 30         <!-- nn1的RPC通信地址 -->
 33                 <value>node01:9000</value>
 34         </property>
 35         <!-- nn1 的http通信地址 -->
 36         <property>
 37                 <name>dfs.namenode.http-address.ns.nn1</name>
 38                 <value>node01:50070</value>
 39         </property>
 40         <!-- nn2的RPC通信地址 -->
 41         <property>
 42                 <name>dfs.namenode.rpc-address.ns.nn2</name>
 43                 <value>node02:9000</value>
 44         </property>
 45         <!-- nn2 的http通信地址 -->
 46         <property>
 47                 <name>dfs.namenode.http-address.ns.nn2</name>
 48                 <value>node02:50070</value>
 49         </property>
 50         <!-- 指定NameNode的edits元数据在JournalNode上的存放位置 -->
 51         <property>
 52                 <name>dfs.namenode.shared.edits.dir</name>
 53                 <value>qjournal://node03:8485;node04:8485;node05:8485/ns</value>
 54         </property>
 55         <!-- 指定JournalNode在本地磁盘存放数据的尾椎  -->
 56         <property>
 57                 <name>dfs.journalnode.edits.dir</name>
 58                 <value>/var/ronnie/hadoop/jdata</value>
 59         </property>
 60         <!-- 开启NameNode失败自动切换 -->
 61         <property>
 62                 <name>dfs.ha.automatic-failover.enabled</name>
 63                 <value>true</value>
 64         </property>
 65         <!-- 配置失败自动切换实现方式  -->
 66         <property>
 67                 <name>dfs.client.failover.proxy.provider.ns</name>
 68                 <value>org.apache.hadoop.hdfs.server.namenode.ha.ConfiguredFailoverProxyProvider</value    >
 69         </property>
 70         <!-- 配置隔离机制方法, 多个机制用换行分割, 即每个机制暂用一行  -->
 71         <property>
 72                 <name>dfs.ha.fencing.methods</name>
 73                 <value>
 74                         sshfence
 75                         shell(/bin/true)
 76                 </value>
 77         </property>
 78         <!-- 使用sshfence隔离机制时需要ssh免密登录 -->
 79         <property>
 80                 <name>dfs.ha.fencing.ssh.private-key-files</name>
 81                 <value>/root/.ssh/id_rsa</value>
 82         </property>
 83         <!-- 配置sshfence隔离机制超时时间  -->
 84         <property>
 85                 <name>dfs.ha.fencing.ssh.connect-timeout</name>
 86                 <value>30000</value>
 87         </property>
 88 </configuration>

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/mapred-site.xml修改mapred-site.xml

  1 <?xml version="1.0"?>
  2 <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
  3 <!--
  4   Licensed under the Apache License, Version 2.0 (the "License");
  5   you may not use this file except in compliance with the License.
  6   You may obtain a copy of the License at
  7
  8     http://www.apache.org/licenses/LICENSE-2.0
  9
 10   Unless required by applicable law or agreed to in writing, software
 11   distributed under the License is distributed on an "AS IS" BASIS,
 12   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 13   See the License for the specific language governing permissions and
 14   limitations under the License. See accompanying LICENSE file.
 15 -->
 16
 17 <!-- Put site-specific property overrides in this file. -->
 18
 19 <configuration>
 20         <!-- 指定mr框架为yarn方式  -->
 21         <property>
 22                 <name>mapreduce.framework.name</name>
 23                 <value>yarn</value>
 24         </property>
 25 </configuration>

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/yarn-site.xml修改yarn-site.xml

  1 <?xml version="1.0"?>
  2 <!--
  3   Licensed under the Apache License, Version 2.0 (the "License");
  4   you may not use this file except in compliance with the License.
  5   You may obtain a copy of the License at
  6
  7     http://www.apache.org/licenses/LICENSE-2.0
  8
  9   Unless required by applicable law or agreed to in writing, software
 10   distributed under the License is distributed on an "AS IS" BASIS,
 11   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 12   See the License for the specific language governing permissions and
 13   limitations under the License. See accompanying LICENSE file.
 14 -->
 15 <configuration>
 16         <!-- 开启RM高可用  -->
 17         <property>
 18                 <name>yarn.resourcemanager.ha.enabled</name>
 19                 <value>true</value>
 20         </property>
 21         <!-- 指定RM的集群id  -->
 22         <property>
 23                 <name>yarn.resourcemanager.cluster-id</name>
 24                 <value>yrc</value>
 25         </property>
 26         <!-- 指定RM的名称  -->
 27         <property>
 28                 <name>yarn.resourcemanager.ha.rm-ids</name>
 29                 <value>rm1,rm2</value>
 30         </property>
 31         <!-- 指定rm1, rm2的地址  -->
 32         <property>
 33                 <name>yarn.resourcemanager.hostname.rm1</name>
 34                 <value>node01</value>
 35         </property>
 36         <property>
 37                 <name>yarn.resourcemanager.hostname.rm2</name>
 38                 <value>node02</value>
 39         </property>
 40         <!-- 指定zookeeper集群地址  -->
 41         <property>
 42                 <name>yarn.resourcemanager.zk-address</name>
 43                 <value>node03:2181,node04:2181,node05:2181</value>
 44         </property>
 45         <!-- 设定洗牌  -->
 46         <property>
 47                 <name>yarn.nodemanager.aux-services</name>
 48                 <value>mapreduce_shuffle</value>
 49         </property>
 50 </configuration>

vim /opt/ronnie/hadoop-3.1.2/etc/hadoop/workers修改工作组

node01
node02
node03
node04
node05

vim /opt/ronnie/hadoop-3.1.2/sbin/start-dfs.sh

vim /opt/ronnie/hadoop-3.1.2/sbin/stop-dfs.sh

在文件顶部头文件之后添加:

#!/usr/bin/env bash

HDFS_DATANODE_USER=root

HADOOP_SECURE_DN_USER=hdfs

HDFS_NAMENODE_USER=root

HDFS_SECONDARYNAMENODE_USER=root

HDFS_JOURNALNODE_USER=root

HDFS_ZKFC_USER=root

vim /opt/ronnie/hadoop-3.1.2/sbin/start-yarn.sh

vim /opt/ronnie/hadoop-3.1.2/sbin/stop-yarn.sh

在文件顶部头文件之后添加:

#!/usr/bin/env bash

YARN_RESOURCEMANAGER_USER=root

HADOOP_SECURE_DN_USER=yarn

YARN_NODEMANAGER_USER=root

将配置好的hadoop目录传送给其他节点

scp -r /opt/ronnie/hadoop-3.1.2/ root@192.168.180.131:/opt/ronnie/
scp -r /opt/ronnie/hadoop-3.1.2/ root@192.168.180.132:/opt/ronnie/
scp -r /opt/ronnie/hadoop-3.1.2/ root@192.168.180.133:/opt/ronnie/
scp -r /opt/ronnie/hadoop-3.1.2/ root@192.168.180.134:/opt/ronnie/

​ 启动集群

先启动zookeeper集群：

root@node03:/var/ronnie/zookeeper# /opt/ronnie/zookeeper/bin/zkServer.sh start
root@node04:/var/ronnie/zookeeper# /opt/ronnie/zookeeper/bin/zkServer.sh start
root@node05:/var/ronnie/zookeeper# /opt/ronnie/zookeeper/bin/zkServer.sh start

分别在node03, node04, node05上启动journalnode

root@node03:~# /opt/ronnie/hadoop-3.1.2/sbin/hadoop-daemon.sh start journalnode
root@node04:~# /opt/ronnie/hadoop-3.1.2/sbin/hadoop-daemon.sh start journalnode
root@node05:~# /opt/ronnie/hadoop-3.1.2/sbin/hadoop-daemon.sh start journalnode

jps查看进程

root@node03:~# jps
6770 Jps
6724 JournalNode
6616 QuorumPeerMain

在两台NameNode中选一台进行格式化(这里选node01)

root@node01:~# hdfs namenode -format

如有报错会写明哪里配置文件写错错了, 再回去改。

开启NameNode:

hdfs --daemon start namenode

jps查看是否开启

root@node01:~# jps
5622 Jps
5549 NameNode

在另一台NameNode上同步格式化后的相关信息

root@node02:~# hdfs namenode  -bootstrapStandby

在node01上格式化ZKFC(只需要执行一次)

root@node01:~# hdfs zkfc -formatZK

启动hdfs集群

root@node01:~# start-dfs.sh

打开node01的50070端口

启动yarn集群

root@node01:~# start-yarn.sh

打开node01的8088端口

到此配置成功

如果上传文件遇到permission denied，则在hdfs-site.xml文件末尾添加:

        <property>
                <name>dfs.permissions</name>
                <value>false</value>
        </property>