linux命令
启动hadoop
myhadoop.sh start
查看安全模式
hadoop dfsadmin -safemode get
关闭
hadoop dfsadmin -safemode leave
启动metastore
nohup bin/hive --service metastore >> logs/metastore.log 2>&1 &
启动hive2
nohup bin/hive --service hiveserver2 >> logs/hiveserver2.log 2>&1 &
启动hive
bin/hive
show databases;
启动phoenix
/opt/module/phoenix/bin/sqlline.py hadoop102,hadoop103,hadoop104:2181
!tables
启动hbase
hbase shell
list
查看进程
ps -ef|grep 4107
查看端口
netstat -anp|grep 1000
杀死进程
kill -9 1023
集群分发
xsync ***
source ***
安装
(2)解压
[atguigu@hadoop102 software]$ tar -zxvf /opt/software/apache-hive-3.1.2-bin.tar.gz -C /opt/module/
(3)修改名称
[atguigu@hadoop102 software]$ mv /opt/module/apache-hive-3.1.2-bin/ /opt/module/hive
(4)添加环境变量
[atguigu@hadoop102 software]$ sudo vim /etc/profile.d/my_env.sh
添加内容
#HIVE_HOME
export HIVE_HOME=/opt/module/hive
export PATH=$PATH:$HIVE_HOME/bin
使环境变量生效
[atguigu@hadoop102 software]$ source /etc/profile.d/my_env.sh
创建hive表
CREATE TABLE IF NOT EXISTS target_sales_sample ( day_id STRING, sale_nbr STRING, buy_nbr STRING, cnt INT, round INT ) ROW FORMAT DELIMITED FIELDS TERMINATED BY ',' STORED AS TEXTFILE; -- -- 将数据上传到HDFS -- -- hadoop fs -put employees.csv / -- -- 导入数据到Hive表 LOAD DATA INPATH '/xiyou/sales_sample_20170310.csv' INTO TABLE target_sales_sample; -- -- -- 验证数据导入 SELECT * FROM target_sales_sample ;
将hive中employees表数据导入到mysql
bin/sqoop export \ --connect jdbc:mysql://Hadoop102:3306/bigdata \ --username root \ --password 123456 \ --table jichang \ --num-mappers 1 \ --export-dir /user/hive/warehouse/jichang \ --input-fields-terminated-by ","
启动kafka
kf.sh start
启动zookeeper
zk.sh start
bin/zkServer.sh start
启动hbase
start-hbase
bin/start-hbase.sh
启动spark
./bin/spark-shell
启动MySQL
[anta@hadoop102 software]$ mysql -uroot -p'123456'
启动MongoDB
D:\MongoDB\Server\5.0>mongod --dbpath D:\MongoDB\Server\5.0\data\db
打开一个浏览器,输入网址“http://localhost:27017/ ”,如果网页上出现如下一行信息,就说明启动成功了:
新建一个cmd窗口,在里面执行如下命令进入MongoDB Shell
mongosh
启动redis
./redis-server /opt/module/redis/bin/redis.conf
/opt/module/redis/bin/redis-cli
Vim 编辑器中查找单词
按下 / 键后,在底部命令行输入要查找的单词,然后按下 Enter 键。