一、安装环境及配置yum

# more /etc/redhat-release
CentOS Linux release 7.2.1511 (Core)
# vi /etc/yum.repos.d/mongodb-org-3.2.repo
[mongodb-org-3.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.2/x86_64/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-3.2.asc

二、安装MongoDB

# yum -y install mongodb-org
Loaded plugins: fastestmirror, langpacks
base                                                              | 3.6 kB  00:00:00
epel/x86_64/metalink                                              | 5.2 kB  00:00:00
extras                                                            | 3.4 kB  00:00:00
mongodb-org-3.2                                                   | 2.5 kB  00:00:00
updates                                                           | 3.4 kB  00:00:00
mongodb-org-3.2/7/primary_db                                      |  50 kB  00:00:03
Loading mirror speeds from cached hostfile* base: mirrors.aliyun.com* epel: mirrors.tuna.tsinghua.edu.cn* extras: mirrors.aliyun.com* updates: mirrors.aliyun.com
Resolving Dependencies
--> Running transaction check
---> Package mongodb-org.x86_64 0:3.2.10-1.el7 will be installed
--> Processing Dependency: mongodb-org-tools = 3.2.10 for package: mongodb-org-3.2.10-1.el7.x86_64
--> Processing Dependency: mongodb-org-shell = 3.2.10 for package: mongodb-org-3.2.10-1.el7.x86_64
--> Processing Dependency: mongodb-org-server = 3.2.10 for package: mongodb-org-3.2.10-1.el7.x86_64
--> Processing Dependency: mongodb-org-mongos = 3.2.10 for package: mongodb-org-3.2.10-1.el7.x86_64
--> Running transaction check
---> Package mongodb-org-mongos.x86_64 0:3.2.10-1.el7 will be installed
---> Package mongodb-org-server.x86_64 0:3.2.10-1.el7 will be installed
---> Package mongodb-org-shell.x86_64 0:3.2.10-1.el7 will be installed
---> Package mongodb-org-tools.x86_64 0:3.2.10-1.el7 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===================================================================================================Package                                      Arch     Version             Repository         Size
===================================================================================================
Installing:mongodb-org                                  x86_64   3.2.10-1.el7        mongodb-org-3.2   5.8 k
Installing for dependencies:mongodb-org-mongos                           x86_64   3.2.10-1.el7        mongodb-org-3.2   5.6 Mmongodb-org-server                           x86_64   3.2.10-1.el7        mongodb-org-3.2    12 Mmongodb-org-shell                            x86_64   3.2.10-1.el7        mongodb-org-3.2   6.7 Mmongodb-org-tools                            x86_64   3.2.10-1.el7        mongodb-org-3.2    41 M
Transaction Summary
===================================================================================================
Install  1 Package (+4 Dependent packages)
Total download size: 65 M
Installed size: 201 M
Downloading packages:
warning: /var/cache/yum/x86_64/7/mongodb-org-3.2/packages/mongodb-org-3.2.10-1.el7.x86_64.rpm: Header V3 RSA/SHA1 Signature, key ID ea312927: NOKEY  ]
Public key for mongodb-org-3.2.10-1.el7.x86_64.rpm is not installed
(1/5): mongodb-org-3.2.10-1.el7.x86_64.rpm                                  | 5.8 kB  00:00:04
(2/5): mongodb-org-server-3.2.10-1.el7.x86_64.rpm                           |  12 MB  00:00:11
(3/5): mongodb-org-shell-3.2.10-1.el7.x86_64.rpm                            | 6.7 MB  00:00:06
(4/5): mongodb-org-tools-3.2.10-1.el7.x86_64.rpm                            |  41 MB  00:00:36
(5/5): mongodb-org-mongos-3.2.10-1.el7.x86_64.rpm                           | 5.6 MB  00:03:28
---------------------------------------------------------------------------------------------------
Total                                                              322 kB/s |  65 MB  00:03:28
Retrieving key from https://www.mongodb.org/static/pgp/server-3.2.asc
Importing GPG key 0xEA312927:Userid     : "MongoDB 3.2 Release Signing Key <packaging@mongodb.com>"Fingerprint: 42f3 e95a 2c4f 0827 9c49 60ad d68f a50f ea31 2927From       : https://www.mongodb.org/static/pgp/server-3.2.asc
Running transaction check
Running transaction test
Transaction test succeeded
Running transactionInstalling : mongodb-org-tools-3.2.10-1.el7.x86_64                                    1/5 Installing : mongodb-org-mongos-3.2.10-1.el7.x86_64                                   2/5 Installing : mongodb-org-shell-3.2.10-1.el7.x86_64                                    3/5 Installing : mongodb-org-server-3.2.10-1.el7.x86_64                                   4/5 Installing : mongodb-org-3.2.10-1.el7.x86_64                                          5/5 Verifying  : mongodb-org-server-3.2.10-1.el7.x86_64                                   1/5 Verifying  : mongodb-org-3.2.10-1.el7.x86_64                                          2/5 Verifying  : mongodb-org-shell-3.2.10-1.el7.x86_64                                    3/5 Verifying  : mongodb-org-mongos-3.2.10-1.el7.x86_64                                   4/5 Verifying  : mongodb-org-tools-3.2.10-1.el7.x86_64                                    5/5
Installed:mongodb-org.x86_64 0:3.2.10-1.el7
Dependency Installed:mongodb-org-mongos.x86_64 0:3.2.10-1.el7      #Author : Leshami      mongodb-org-server.x86_64 0:3.2.10-1.el7      #Blog   : http://blog.csdn.net/leshamimongodb-org-shell.x86_64 0:3.2.10-1.el7           mongodb-org-tools.x86_64 0:3.2.10-1.el7
Complete!

三、验证安装结果

# rpm -qa |grep mongodbmongodb-org-3.2.10-1.el7.x86_64
mongodb-org-mongos-3.2.10-1.el7.x86_64
mongodb-org-shell-3.2.10-1.el7.x86_64
mongodb-org-server-3.2.10-1.el7.x86_64
mongodb-org-tools-3.2.10-1.el7.x86_64# rpm -ql mongodb-org-server/etc/init.d/mongod
/etc/mongod.conf/etc/sysconfig/mongod
/usr/bin/mongod
/usr/share/doc/mongodb-org-server-3.2.10/usr/share/doc/mongodb-org-server-3.2.10/GNU-AGPL-3.0/usr/share/doc/mongodb-org-server-3.2.10/MPL-2/usr/share/doc/mongodb-org-server-3.2.10/README
/usr/share/doc/mongodb-org-server-3.2.10/THIRD-PARTY-NOTICES
/usr/share/man/man1/mongod.1/var/lib/mongo
/var/log/mongodb
/var/log/mongodb/mongod.log/var/run/mongodb[root@localhost ~]# /etc/init.d/mongod startStarting mongod (via systemctl):                           [  OK  ]
[root@localhost ~]# netstat -nltp|grep mongotcp        0      0 127.0.0.1:27017      0.0.0.0:*   LISTEN      89958/mongod# mongoMongoDB shell version: 3.2.10connecting to: test
Welcome to the MongoDB shell.
For interactive help, type "help".
For more comprehensive documentation, seehttp://docs.mongodb.org/
Questions? Try the support grouphttp://groups.google.com/group/mongodb-user
> db.version()3.2.10

配置，启动和使用 mongodb

Centos7 开始采用 systemd 来管理服务

配置

fork=true   ## 允许程序在后台运行
#auth=true  ## 开始认证
logpath=/data/db/mongodb/logs/mongodb.log
logappend=true        # 写日志的模式：设置为true为追加。默认是覆盖
dbpath=/data/db/mongodb/data/    ## 数据存放目录
pidfilepath=/data/db/mongodb/logs/mongodb.pid    # 进程ID，没有指定则启动时候就没有PID文件。默认缺省。
port=27017
#bind_ip=192.168.2.73   # 绑定地址。默认127.0.0.1，只能通过本地连接
# 设置为true，修改数据目录存储模式，每个数据库的文件存储在DBPATH指定目录的不同的文件夹中。
# 使用此选项，可以配置的MongoDB将数据存储在不同的磁盘设备上，以提高写入吞吐量或磁盘容量。默认为false。
# 建议一开始就配置次选项
directoryperdb=true
# 禁止日志
# 对应 journal 启用操作日志，以确保写入持久性和数据的一致性，会在dbpath目录下创建journal目录
nojournal = true
## max connections
# 最大连接数。默认值：取决于系统（即的ulimit和文件描述符）限制。
# MongoDB中不会限制其自身的连接。当设置大于系统的限制，则无效，以系统限制为准。
# 设置该值的高于连接池和总连接数的大小，以防止尖峰时候的连接。
# 注意：不能设置该值大于20000。
maxConns=1024

但是实际配置中配置1024在系统的中告警 --maxConns too high, can only handle 819， 暂时找到是什么原因

启动 Mongo

## 检查 mongodb 是否允许系统启动
systemctl is-enabled mongodb## 使 mongodb 系统启动
systemctl enable mongodb## 启动
systemctl start mongodb## 查看启动状态
systemctl status mongodb ## 停止
systemctl stop mongodb

使用 Mongo

root@pts/4 $ mongo --help
MongoDB shell version: 3.0.6
usage: mongo [options] [db address] [file names (ending in .js)]
db address can be:foo                   foo database on local machine192.169.0.5/foo       foo database on 192.168.0.5 machine192.169.0.5:9999/foo  foo database on 192.168.0.5 machine on port 9999
Options:--shell                            run the shell after executing files--nodb                             don't connect to mongod on startup - no 'db address' arg expected--norc                             will not run the ".mongorc.js" file on start up--quiet                            be less chatty--port arg                         port to connect to--host arg                         server to connect to--eval arg                         evaluate javascript-h [ --help ]                      show this usage information--version                          show version information--verbose                          increase verbosity--ipv6                             enable IPv6 support (disabled by default)--ssl                              use SSL for all connections--sslCAFile arg                    Certificate Authority file for SSL--sslPEMKeyFile arg                PEM certificate/key file for SSL--sslPEMKeyPassword arg            password for key in PEM file for SSL--sslCRLFile arg                   Certificate Revocation List file for SSL--sslAllowInvalidHostnames         allow connections to servers with non-matching hostnames--sslAllowInvalidCertificates      allow connections to servers with invalid certificates--sslFIPSMode                      activate FIPS 140-2 mode at startup
Authentication Options:-u [ --username ] arg              username for authentication-p [ --password ] arg              password for authentication--authenticationDatabase arg       user source (defaults to dbname)--authenticationMechanism arg      authentication mechanism--gssapiServiceName arg (=mongodb) Service name to use when authenticating using GSSAPI/Kerberos--gssapiHostName arg               Remote host name to use for purpose of GSSAPI/Kerberos authentication
file names: a list of files to run. files have to end in .js and will exit after unless --shell is specified

例子

root@pts/2 $ mongo localhost/test
MongoDB shell version: 3.0.6
connecting to: localhost/test
Server has startup warnings:
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten]
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten]
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2015-09-08T14:29:50.163+0800 I CONTROL  [initandlisten]
> show dbs
local             0.078GB
weic              0.203GB
weictest          0.078GB
> use weic
switched to db weic
> show collections
actorAudio
attention
audio
system.indexes
tagInfo
> db.tagInfo.findOne()
{"_id" : ObjectId("563c871f8105044098c6c761"),"id" : NumberLong(1),"name" : "声音萌软淑"
}
>