centos7平台安装MongoDB

以下演示的是 64 位 centos7上的安装

一、下载MongoDB

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

1.下载安装包

# curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel70-3.4.10.tgz

2.解压tgz

# tar -zxvf mongodb-linux-x86_64-rhel70-3.4.10.tgz

3.将解压包拷贝到指定目录

# mv mongodb-linux-x86_64-rhel70-3.4.10/ /usr/local/mongodb

#/ /两'/'之间存在空格

二、将MongoDB的可执行文件增添到PATH路径中

# export PATH=/bin:$PATH

为你 MongoDB 的安装路径。如本文的/usr/local/mongodb

即：

# export PATH=/usr/local/mongodb/bin:$PATH

查看PATH

# echo $PATH

/usr/local/mongodb/bin:/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin

三、创建数据库目录和log目录

1.创建db目录

MongoDB的数据存储在data目录的db目录下，但是这个目录在安装过程不会自动创建，所以你需要手动创建data目录，并在data目录中创建db目录

本文将目录放在 根目录下(/)

即：

/data/db

2.创建log目录以及mongod.log文件

# cd /data/db

# mkdir log

# touch mongod.log

后可参照【MongoDB】mongodb.conf 配置文件

使用logpath来指定

四、命令行中运行MongoDB服务

你可以再命令行中执行mongo安装目录中的bin目录执行mongod命令来启动mongdb服务

本文安装在/usr/local/mongodb

# cd /usr/local/mongodb/mongodb-linux-x86_64-rhel70-3.4.10/bin

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

$ ./mongod

2017-11-07T15:28:32.074+0800 I CONTROL [initandlisten] MongoDB starting : pid=18339 port=27017 dbpath=/data/db 64-bit host=zhurui802

2017-11-07T15:28:32.074+0800 I CONTROL [initandlisten] db version v3.4.10

2017-11-07T15:28:32.074+0800 I CONTROL [initandlisten] git version: 078f28920cb24de0dd479b5ea6c66c644f6326e9

2017-11-07T15:28:32.074+0800 I CONTROL [initandlisten] OpenSSL version: OpenSSL 1.0.1e-fips 11 Feb 2013

2017-11-07T15:28:32.074+0800 I CONTROL [initandlisten] allocator: tcmalloc

五、MongoDB后台管理Shell

1.进入mongodb安装目录下的bin目录

# cd /usr/local/mongodb/mongodb-linux-x86_64-rhel70-3.4.10/bin

2.执行mongo命令文件

# ./mongo

MongoDB shell version v3.4.10

connecting to: mongodb://127.0.0.1:27017

MongoDB server version: 3.4.10

Welcome to the MongoDB shell.

For interactive help, type "help".

For more comprehensive documentation, see

Questions? Try the support group

http://groups.google.com/group/mongodb-user

【问题】

mongodb exception: connect failed

# ./mongo

MongoDB shell version v3.4.10

connecting to: mongodb://127.0.0.1:27017

2017-11-07T17:13:57.455+0800 W NETWORK [thread1] Failed to connect to 127.0.0.1:27017, in(checking socket for error after poll), reason: Connection refused

2017-11-07T17:13:57.456+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

【解决办法】

# sudo ./mongod

2017-11-07T17:16:21.024+0800 I CONTROL [initandlisten]

2017-11-07T17:16:21.025+0800 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 3895 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.

2017-11-07T17:16:21.025+0800 I CONTROL [initandlisten]

2017-11-07T17:16:21.026+0800 I FTDC [initandlisten] Initializing full-time diagnostic data capture with directory '/data/db/diagnostic.data'

2017-11-07T17:16:21.027+0800 I NETWORK [thread1] waiting for connections on port 27017

后一直卡在这个界面

不用担心

此时数据库就已经启动

3.新开[注意是新开]一个终端

再次进入mongodb安装目录下的bin目录

# cd /usr/local/mongodb/mongodb-linux-x86_64-rhel70-3.4.10/bin

再启动一次mongodb程序

# ./mongo

【注意事项】运行第二个终端时，第一个mongodb启动窗口切勿关闭

gepage/defrag is 'always'.

2017-11-07T17:16:21.024+0800 I CONTROL [initandlisten] ** We suggest setting it to 'never'

2017-11-07T17:16:21.024+0800 I CONTROL [initandlisten]

2017-11-07T17:16:21.025+0800 I CONTROL [initandlisten] ** WARNING: soft rlimits too low. rlimits set to 3895 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.

2017-11-07T17:16:21.025+0800 I CONTROL [initandlisten]

六、远程登陆MongoDb

1.无密码

mongo 远程IP地址/端口号

2.有密码

mongo 远程IP地址/端口号 -u 用户名 -p 密码