經常使用數據庫的啓動與關閉

電腦裏安裝了多種經常使用數據庫，可是又不會常常都用到，因此沒有設置開機啓動，可是時間長了常常忘記啓動命令，這裏總結一下，以便忘記是隨時查看。

1、mongoDB
一、首先開啓mongo數據庫服務，mongod，它須要一直在後臺運行才能夠保證數據庫鏈接正常。

sudo service mongod start   # 開啓

二、而後就能夠在終端啓動mongo了，也能夠用可視化工具如Robo3T鏈接

➜  ~ sudo service mongod start
➜  ~ mongo
MongoDB shell version v3.4.18
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.18
Server has startup warnings: 
2018-12-04T18:02:44.177+0800 I STORAGE  [initandlisten] 
2018-12-04T18:02:44.177+0800 I STORAGE  [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2018-12-04T18:02:44.177+0800 I STORAGE  [initandlisten] **          See http://dochub.mongodb.org/core/prodnotes-filesystem
2018-12-04T18:02:44.993+0800 I CONTROL  [initandlisten] 
2018-12-04T18:02:44.993+0800 I CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2018-12-04T18:02:44.994+0800 I CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
2018-12-04T18:02:44.994+0800 I CONTROL  [initandlisten] 
> 

三、不用的時候能夠選擇關閉mongo後臺服務

sudo service mongod stop   # 關閉

 

2、MySQL

一、啓動MySQL服務：

sudo service mysql start  #  方式一
sudo /etc/init.d/mysql start   # 方式二

啓動後能夠看看狀態：

➜  init.d service mysql status
● mysql.service - MySQL Community Server
   Loaded: loaded (/lib/systemd/system/mysql.service; enabled; vendor preset: en
   Active: active (running) since 二 2018-12-04 13:55:17 CST; 4h 18min ago
  Process: 1112 ExecStartPost=/usr/share/mysql/mysql-systemd-start post (code=ex
  Process: 1096 ExecStartPre=/usr/share/mysql/mysql-systemd-start pre (code=exit
 Main PID: 1111 (mysqld)
   CGroup: /system.slice/mysql.service
           └─1111 /usr/sbin/mysqld

12月 04 13:55:16 zzf-ubuntu systemd[1]: Starting MySQL Community Server...
12月 04 13:55:17 zzf-ubuntu systemd[1]: Started MySQL Community Server.

二、而後就能夠鏈接MySQL數據庫了，無論是終端、命令行、程序仍是可視化工具

➜  ~ mysql -u root -p
Enter password: 
Welcome to the MySQL monitor.  Commands end with ; or \g.
Your MySQL connection id is 7
Server version: 5.7.24-0ubuntu0.16.04.1 (Ubuntu)

Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.

Oracle is a registered trademark of Oracle Corporation and/or its
affiliates. Other names may be trademarks of their respective
owners.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

mysql> ^DBye

三、關閉同mongo，改爲stop便可

四、另外開啓時候也能夠重啓，使用restart命令便可。

 

3、Redis

一、服務啓動

　　經過指定配置文件啓動，要清楚本身的配置文件位置

redis-server /etc/redis/redis.conf

二、而後就能夠經過各類方式鏈接redis數據庫了

➜  ~ redis-cli
127.0.0.1:6379> 

三、關閉Redis服務

redis-cli shutdown