Linux (CentOS) Install MongoDB v3.2 notes (you can specify a profile when you start) __linux

1. Download MongoDB

The default is 64-bit, this is a little awkward ...

64-bit system download address: https://www.mongodb.org/dl/linux/x86_64-debian81?_ga=2.15324022.1713724367.1498550277-1089294971.1498550277

32-bit Download list address: Https://www.mongodb.org/dl/linux

32-bit v3.2 version address http://downloads.mongodb.org/linux/mongodb-linux-i686-v3.2-latest.tgz?_ga=  2.114898759.1713724367.1498550277-1089294971.1498550277 2. Linux (32-bit system) Direct

wget http://downloads.mongodb.org/linux/mongodb-linux-i686-v3.2-latest.tgz?_ga=    2.114898759.1713724367.1498550277-1089294971.1498550277 3. Extract Directory

TAR-XVF mongodb.tgz

4. Move directory to/usr/local/mongodb

MV MongoDB (unpacked folder)/usr/local/mongodb 5. Configure Environment Variables

Modify/etc/profile and add the following

Export Mongodb_home=/usr/local/mongodb
Export path= $MONGODB _home/bin: $PATH

After saving, execute the following command:
Vim/etc/profile
Source/etc/profile 6. View MongoDB version Information Mongod-v

The installation was successful! Configure below to start 7. Create a database directory

MongoDB need to build the database folder yourself.

Mkdir-p/data/mongodb
Mkdir-p/data/mongodb/log
Touch/data/mongodb/log/mongodb.log

Add configuration file

Create a new mongodb.conf configuration file to start with this profile.

Vim/etc/mongodb.conf

Configuration file Parameter Description:

MongoDB parameter Description:
--dbpath database path (data file)
--logpath log file path
--master specified as master machine
--slave specified as from machine
--so URCE Specifies the IP address of the primary machine
--pologsize Specifies that the log file size does not exceed 64M. Because Resync is a very large and time-consuming operation, it is best to avoid resync by setting a large enough oplogsize (the default The Oplog size is 5% of the size of the free disk.
--logappend the end of the log file add
--port enable the port number
--fork run in the background
--only specify which database to copy only
--slavedelay refers to from replication detection Interval
--auth whether to require authentication permission logins (username and password)
Note: MongoDB configuration file contains a lot of parameters, custom specific requirements, please refer to the official documentation

Configuration file Contents:

Dbpath=/data/mongodb
Logpath=/data/mongodb/log/mongodb.log
Logappend=true
port=27017
Fork=true
# #auth = true # First Close, create a good user to start

To start a service from a configuration file:

Mongod--journal-f/etc/mongodb.conf (32-bit system needs to add parameters--journal)

To shut down a service by using a configuration file:

Mongod--journal--shutdown-f/etc/mongodb.conf

8. Enter MongoDB admin Shell

Cd/usr/local/mongodb/bin
./mongo

Creating data

Command Use test

Switched to DB test

Create a user, set permissions

Db.createuser (
    {
　　　　  User: "Test",
        PWD: "Test",
        Roles: [{role: "ReadWrite", DB: "Test"}]
    }
)

Configuring Firewalls

Add 27017 ports to the firewall

Vi/etc/sysconfig/iptables
    -A input-m state--state new-m tcp-p TCP--dport 27017-j ACCEPT
/etc/init.d/iptables Reload

TEST

Command Use test

Db.abc.insert ({"A": 1, "B": 2})

> Db.abc.find ()

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