0. 前言
安装docker
安装并运行phpMyAdmin和MySql
Docker创建网桥，并将容器加入该网络
从github克隆代码到本地并修改配置文件
生成镜像并运行
-
hive配置
项目放在github上https://github.com/Foabo/hadoop-hive
1. 安装docker
参考官方文档，有详细说明，mac上下载了docker desktop之后就很方便，连docker-compose都装好了
1.1 更换docker镜像源
https://www.daocloud.io/mirror#accelerator-doc在这个页面下找到镜像地址
复制,打开docker dashboard->点击齿轮->左边Docker Engine
2. 安装并运行mysql和phpmyadmin
具体见我博客https://www.jianshu.com/p/32335bd372dc
3.将mysql 和 phpmyadmin加入同一个网络
事实上我那篇博客里创建phpmyadmin的时候已经和mysql互相连接了
但是为了后续配置，给他们加入一个docker里的私有网络
docker network creat hadoopnet
docker network connect hadoopnet mysql
docker network connect hadoopnet phpmyadmin
docker network inspect hadoopnet
最后一句可以查看我们hadoopnet的情况
$ docker network inspect hadoopnet
[
{
"Name": "hadoopnet",
"Id": "509cca32dd24091456a46b357b870b776f2cd9b52b09dd5c486f3c0a6d6d910d",
"Created": "2020-12-12T04:57:06.8458138Z",
"Scope": "local",
"Driver": "bridge",
"EnableIPv6": false,
"IPAM": {
"Driver": "default",
"Options": {},
"Config": [
{
"Subnet": "172.18.0.0/16",
"Gateway": "172.18.0.1"
}
]
},
"Internal": false,
"Attachable": false,
"Ingress": false,
"ConfigFrom": {
"Network": ""
},
"ConfigOnly": false,
"Containers": {
"34596622ac1beeebaf6e8e41f910693a7f621ebbdcfdcdbbb35f1cf6de6e7ef2": {
"Name": "mysql",
"EndpointID": "bb20ba54f3eb990e7e4383ca3e442577fd9ea6c2e27160d1ebd52327810672bb",
"MacAddress": "02:42:ac:12:00:03",
"IPv4Address": "172.18.0.3/16",
"IPv6Address": ""
},
"50eb6d69b526b1dc5ba230659f61d8d521125def015d52c4852d954957691bd2": {
"Name": "phpmyadmin",
"EndpointID": "8b3b21a22a61a615348baa6ab52c5ae6bdc52fc6ab15f3593278bd1d839e817b",
"MacAddress": "02:42:ac:12:00:04",
"IPv4Address": "172.18.0.4/16",
"IPv6Address": ""
}
},
"Options": {},
"Labels": {}
}
]
4. 克隆github项目
这是我fork别人的一个项目，我自己也写过dockerfile配置hadoop集群，但是人家做的更好，拿过来进行修改了一下，确保能正确运行。
git clone https://github.com/foabo/hadoop-hive
实际的代码结构如下，克隆下来后，添加一些必须的文件并修改config的配置文件为你自己的实际情况
5.构建hadoop集群
5.1 生成镜像
当前目录下执行
docker build -t hadoop-hive:1 .
可能需要大于十分钟，这时候可以看会视频缓解一下无聊。
完成之后
$ docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
hadoop-hive 1 72a6c0ec45dd 19 minutes ago 3.01GB
rabbitmq 3.8-management 263c941f71ea 2 weeks ago 186MB
ubuntu 18.04 2c047404e52d 2 weeks ago 63.3MB
mysql 5.7 1b12f2e9257b 7 weeks ago 448MB
phpmyadmin/phpmyadmin latest 4592b4f19053 8 weeks ago 469MB
可以看到生成了一个大概3G的镜像
5.2 启动集群
先在hadoop-hive目录下创建/data/hadoop-master/、/data/hadoop-slaver1/、/data/hadoop-slaver2/三个文件夹
在hadoop-hive目录下，执行
bash start-container1.sh
执行完这条命令我们便进入了master容器内部
这时候打开外部终端执行docker ps可以看到生成了三个容器
$ docker ps
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
44d7a51abd14 hadoop-hive:1 "sh -c 'service ssh …" 15 seconds ago Up 14 seconds hadoop-slave2
562848ea3787 hadoop-hive:1 "sh -c 'service ssh …" 16 seconds ago Up 15 seconds hadoop-slave1
df8877f49e46 hadoop-hive:1 "sh -c 'service ssh …" 17 seconds ago Up 16 seconds 0.0.0.0:8088->8088/tcp, 0.0.0.0:9083->9083/tcp, 0.0.0.0:50070->50070/tcp hadoop-master
50eb6d69b526 phpmyadmin/phpmyadmin "/docker-entrypoint.…" 3 weeks ago Up 3 hours 0.0.0.0:6061->80/tcp phpmyadmin
34596622ac1b mysql:5.7 "docker-entrypoint.s…" 3 weeks ago Up 3 hours 0.0.0.0:3306->3306/tcp, 33060/tcp mysql
mysql
回到master容器内部，输入ls查看当前目录
root@hadoop-master:~# ls
hdfs run-wordcount.sh start-hadoop.sh
启动hadoop集群bash start-hadoop.sh
root@hadoop-master:~# bash start-hadoop.sh
Starting namenodes on [hadoop-master]
hadoop-master: Warning: Permanently added 'hadoop-master,172.18.0.2' (ECDSA) to the list of known hosts.
hadoop-master: WARNING: HADOOP_NAMENODE_OPTS has been replaced by HDFS_NAMENODE_OPTS. Using value of HADOOP_NAMENODE_OPTS.
Starting datanodes
WARNING: HADOOP_SECURE_DN_LOG_DIR has been replaced by HADOOP_SECURE_LOG_DIR. Using value of HADOOP_SECURE_DN_LOG_DIR.
localhost: Warning: Permanently added 'localhost' (ECDSA) to the list of known hosts.
localhost: WARNING: HADOOP_SECURE_DN_LOG_DIR has been replaced by HADOOP_SECURE_LOG_DIR. Using value of HADOOP_SECURE_DN_LOG_DIR.
localhost: WARNING: HADOOP_DATANODE_OPTS has been replaced by HDFS_DATANODE_OPTS. Using value of HADOOP_DATANODE_OPTS.
Starting secondary namenodes [hadoop-master]
hadoop-master: Warning: Permanently added 'hadoop-master,172.18.0.2' (ECDSA) to the list of known hosts.
hadoop-master: WARNING: HADOOP_SECONDARYNAMENODE_OPTS has been replaced by HDFS_SECONDARYNAMENODE_OPTS. Using value of HADOOP_SECONDARYNAMENODE_OPTS.
Starting resourcemanager
Starting nodemanagers
使用exit命令退出docker容器，拷贝hdfs文件到宿主机目录
docker cp hadoop-master:/root/hdfs /Users/inf/github.com.foabo/hadoop-hive/data/hadoop-master
docker cp hadoop-slave1:/root/hdfs /Users/inf/github.com.foabo/hadoop-hive/data/hadoop-slave1
docker cp hadoop-slave2:/root/hdfs /Users/inf/github.com.foabo/hadoop-hive/data/hadoop-slave2
复制了这么一些文件过来
因为下一步要挂在卷到三个容器，打开docker dashborad，点击小齿轮->Resources->FILE SHARING，添加可以挂载的卷，然后点击Apply & Restart,等待docker重启,我为了防止出错，将挂载的三个卷都分别加上去了
重新运行容器，并挂载hdfs目录,运行start-container2.sh
$ bash start-container2.sh
start hadoop-master container...
start hadoop-slave1 container...
start hadoop-slave2 container...
root@hadoop-master:~# ls
hdfs run-wordcount.sh start-hadoop.sh
在此进入到master容器内部
这时候我们就可以开启hadoop
./start-hadoop.sh
执行wordcount脚本
./run-wordcount.sh
如果出现
input file1.txt:
2020-12-12 12:30:02,783 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false
Hello Hadoop
input file2.txt:
2020-12-12 12:30:05,445 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false
Hello Docker
wordcount output:
2020-12-12 12:30:08,058 INFO sasl.SaslDataTransferClient: SASL encryption trust check: localHostTrusted = false, remoteHostTrusted = false
Docker 1
Hadoop 1
Hello 2
大功告成！
6. Hive配置
首先是配置hive-site.xml，在运行Dockerfile我已经配置好了
在master容器执行元数据库初始化
/usr/local/hive/bin/schematool -dbType mysql -initSchema
在浏览器输入localhost:6061登陆phpmyadmin，账户和密码都是root
打开hive数据库，你会看到一堆的数据表
进入hive测试，
cd /usr/local/hive/bin
./hive
此时会出来hive的shell
测试
Logging initialized using configuration in jar:file:/usr/local/hive/lib/hive-common-3.1.2.jar!/hive-log4j2.properties Async: true
Loading class `com.mysql.jdbc.Driver'. This is deprecated. The new driver class is `com.mysql.cj.jdbc.Driver'. The driver is automatically registered via the SPI and manual loading of the driver class is generally unnecessary.
Hive-on-MR is deprecated in Hive 2 and may not be available in the future versions. Consider using a different execution engine (i.e. spark, tez) or using Hive 1.X releases.
Hive Session ID = 8d6dfbee-16e4-4350-a8c1-0b0ed61a2194
hive> show databases;
OK
default
Time taken: 0.868 seconds, Fetched: 1 row(s)
hive> quit;
7. 踩坑
执行wordcount时候出现了
Please check whether your etc/hadoop/mapred-site.xml contains the below configuration: <property> <name>yarn.app.mapreduce.am.env</name> <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}</value> </property> <property> <name>mapreduce.map.env</name> <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}</value> </property> <property> <name>mapreduce.reduce.env</name> <value>HADOOP_MAPRED_HOME=${full path of your hadoop distribution directory}</value> </property>解决
则在命令行输入
hadoop classpath会打印一堆hadoop环境变量复制hadoop环境变量
在mapred-site.xml文件添加
<property> <name>mapreduce.application.classpath</name> <value>你复制的信息</value> </property>在yarn-site.xml文件添加
<property> <name>yarn.application.classpath</name> <value> 复制的hadoop环境变量 </value> </property>这两个文件在
/usr/local/hadoop/etc/hadoop/下面，我在外部修改然后用命令docker cp config/mapred-site.xml 23aeb2c92ec9:/usr/local/hadoop/etc/hadoop/mapred-site.xml将其复制进去，重启hadoop集群
�进行元数据库初始化也报错了
Exception in thread "main" java.lang.NoSuchMethodError: com.google.common.base.Preconditions.checkArgument(ZLjava/lang/String;Ljava/lang/Object;)V at org.apache.hadoop.conf.Configuration.set(Configuration.java:1357) at org.apache.hadoop.conf.Configuration.set(Configuration.java:1338) at org.apache.hadoop.mapred.JobConf.setJar(JobConf.java:536) at org.apache.hadoop.mapred.JobConf.setJarByClass(JobConf.java:554) at org.apache.hadoop.mapred.JobConf.<init>(JobConf.java:448) at org.apache.hadoop.hive.conf.HiveConf.initialize(HiveConf.java:5141) at org.apache.hadoop.hive.conf.HiveConf.<init>(HiveConf.java:5104) at org.apache.hive.beeline.HiveSchemaTool.<init>(HiveSchemaTool.java:96) at org.apache.hive.beeline.HiveSchemaTool.main(HiveSchemaTool.java:1473) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)解决
rm /usr/local/hive/lib/guava-19.0.jar cp /usr/local/hadoop/share/hadoop/hdfs/lib/guava-27.0-jre.jar /usr/local/hive/lib/
