【MongoDB安装】MongoDB在centos linux平台安装

参考：http://www.runoob.com/mongodb/mongodb-linux-install.html

一、.下载安装包

下载方式：

1.登录官网download,然后通过xftp传到服务器

下载地址：https://www.mongodb.com/download-center#community

2.wget直接下载到服务器（前提是知道地址）

wget地址：https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-amazon-3.4.7.tgz

[root@zhangmeng ~]# wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-amazon-3.4.7.tgz
--2017-09-07 15:11:23--  https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-amazon-3.4.7.tgz
Resolving fastdl.mongodb.org... 54.230.86.225, 54.230.86.86, 54.230.86.44, ...
Connecting to fastdl.mongodb.org|54.230.86.225|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 100691605 (96M) [application/x-gzip]
Saving to: ?.ongodb-linux-x86_64-amazon-3.4.7.tgz?

100%[=================================>] 100,691,605 5.23M/s   in 14s     

2017-09-07 15:11:39 (6.63 MB/s) - ?.ongodb-linux-x86_64-amazon-3.4.7.tgz.saved [100691605/100691605]

3.curl 下载

可以找个时间研究wget和curl的区别？

[root@zhangmeng ~]# curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-amazon-3.4.7.tgz
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
  0     0    0     0    0     0      0      0 --:--:--  0:00:01 --:--:--    
 0 96.0M    0 64736    0     0  34549      0  0:48:34  0:00:01  0:48:33 76  
1 96.0M    1 1039k    0     0   360k      0  0:04:32  0:00:02  0:04:30  5 
 4 96.0M    4 4191k    0     0  1073k      0  0:01:31  0:00:03  0:01:28 14 
11 96.0M   11 11.2M    0     0  2372k      0  0:00:41  0:00:04  0:00:37 30 
19 96.0M   19 18.7M    0     0  3277k      0  0:00:30  0:00:05  0:00:25 39 
27 96.0M   27 26.3M    0     0  3925k      0  0:00:25  0:00:06  0:00:19 53 
35 96.0M   35 33.7M    0     0  4388k      0  0:00:22  0:00:07  0:00:15 67 
43 96.0M   43 41.5M    0     0  4794k      0  0:00:20  0:00:08  0:00:12 77
51 96.0M   51 49.4M    0     0  5137k      0  0:00:19  0:00:09  0:00:10 78
59 96.0M   59 57.4M    0     0  5413k      0  0:00:18  0:00:10  0:00:08 79
68 96.0M   68 65.5M    0     0  5657k      0  0:00:17  0:00:11  0:00:06 80
76 96.0M   76 73.8M    0     0  5873k      0  0:00:16  0:00:12  0:00:04 82
85 96.0M   85 81.7M    0     0  6037k      0  0:00:16  0:00:13  0:00:03 82
93 96.0M   93 89.9M    0     0  6194k      0  0:00:15  0:00:14  0:00:01 82
98 96.0M   98 95.0M    0     0  5575k      0  0:00:17  0:00:17 --:--:--
58100 96.0M  100 96.0M    0     0  5631k      0  0:00:17  0:00:17 --:--:-- 5576k

 二、解压

1.解压安装包

[root@zhangmeng ~]# tar -zxvf mongodb-linux-x86_64-amazon-3.4.7.tgz 

2.将解压包拷贝到指定目录

[root@zhangmeng ~]# mv mongodb-linux-x86_64-amazon-3.4.7/ /usr/local/mongodb

 三、创建数据库目录

mkdir -p  创建目录，如果没有连带父级目录也创建，如果存在也不会报错

[root@zhangmeng ~]# mkdir -p /data/db

四、命令行中运行MongoDB服务

PS:如果你的数据库目录不是/data/db，可以通过 --dbpath 来指定。

[root@zhangmeng ~]# cd /usr/local/mongodb/bin/
[root@zhangmeng bin]# ls
bsondump  mongodump    mongoimport  mongoreplay   mongostat
mongo     mongoexport  mongooplog   mongorestore  mongotop
mongod    mongofiles   mongoperf    mongos
[root@zhangmeng bin]# 
[root@zhangmeng bin]# mongod
-bash: mongod: command not found
[root@zhangmeng bin]# ./mongod
2017-09-07T17:06:18.874+0800 I CONTROL  [initandlisten] MongoDB starting : pid=1577 port=27017 dbpath=/data/db 64-bit host=zhangmeng.example.com
2017-09-07T17:06:18.874+0800 I CONTROL  [initandlisten] db version v3.4.7
2017-09-07T17:06:18.874+0800 I CONTROL  [initandlisten] git version: cf38c1b8a0a8dca4a11737581beafef4fe120bcd
2017-09-07T17:06:18.874+0800 I CONTROL  [initandlisten] OpenSSL version: OpenSSL 1.0.0-fips 29 Mar 2010

五、MongoDB后台管理SHELL

下面报错是因为我把上面的窗口关闭了

[root@zhangmeng ~]# cd /usr/local/mongodb/bin
[root@zhangmeng bin]# 
[root@zhangmeng bin]# ls
bsondump  mongodump    mongoimport  mongoreplay   mongostat
mongo     mongoexport  mongooplog   mongorestore  mongotop
mongod    mongofiles   mongoperf    mongos
[root@zhangmeng bin]# ./mongo
MongoDB shell version v3.4.7
connecting to: mongodb://127.0.0.1:27017
2017-09-07T17:11:46.865+0800 W NETWORK  [thread1] Failed to connect to 127.0.0.1:27017, in(checking socket for error after poll), reason: Connection refused
2017-09-07T17:11:46.865+0800 E QUERY    [thread1] Error: couldn't connect to server 127.0.0.1:27017, connection attempt failed :
connect@src/mongo/shell/mongo.js:237:13
@(connect):1:6
exception: connect failed
[root@zhangmeng bin]# 

正常连接后

由于它是一个JavaScript shell，您可以运行一些简单的算术运算:

mm/transparent_hugepage/defrag is 'always'.
2017-09-07T17:12:56.346+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2017-09-07T17:12:56.346+0800 I CONTROL  [initandlisten] 
> 
> 3*5
15

将数字 10 插入到 runoob 集合的 x 字段中。

2017-09-07T17:12:56.346+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2017-09-07T17:12:56.346+0800 I CONTROL  [initandlisten] 
> 
> 
> db.runoob.insert({x:10})
WriteResult({ "nInserted" : 1 })
> db.runoob.find()
{ "_id" : ObjectId("59b10eeb5639ea8e2b75c4bb"), "x" : 10 }
> 

 六、基础命令

1.显示所有数据的列表  show dbs

> show dbs
admin  0.000GB
local  0.000GB
test   0.000GB

2.显示当前数据库对象或集合  db

> db
test
>