Shulou(Shulou.com)06/01 Report--

YUM installation and installation Mongodb 3.4 under CentOS7 system

The first step is to see if there is a Mongodb configuration yum source

Change to the yum directory cd / etc/yum.repos.d/

View the file ls

There is no add yum source in part II.

Create a file touch mongodb-3.4.repo

Edit the file vi mongodb-3.4.repo

Content:

Cat / etc/yum.repos.d/mongodb-3.4.repos

[mongodb-org-3.4]

Name=MongoDB Repository

Baseurl= https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.4/x86_64/

Gpgcheck=1

Enabled=1

Gpgkey= https://www.mongodb.org/static/pgp/server-3.2.asc

Gpgcheck=0 can be modified here to omit gpg verification

Update all packages before installation: yum update (optional)

Then install: yum install-y mongodb-org

View mongo installation location whereis mongod

View the modified configuration file: vi / etc/mongod.conf

Start mongod: systemctl start mongod.service

Stop mongod: systemctl stop mongod,service

To access the public network, you need to disable the firewall:

CentOS 7.0 uses firewall as the firewall by default, which is changed to iptables firewall here.

Turn off firewall:

Systemctl stop firewalld.service # stop firewall

Systemctl disable firewalld.service # prevents firewall from booting

Use mongodb: mongo 192.168.60.102pur27017

> use admin

> show dbs

> show collections

After restarting Mongodb, log in to the admin account and create a super privileged user

Use admin

Db.createUser ({user:'root',pwd:'root',roles: [{"role": "root", "db": "admin"}]})

Configuration

Fork=true # # allow programs to run in the background

# auth=true # # start authentication

Logpath=/data/db/mongodb/logs/mongodb.log logappend=true # mode for logging: set to true and append. The default is to overwrite the dbpath=/data/db/mongodb/data/ # # data storage directory

Pidfilepath=/data/db/mongodb/logs/mongodb.pid # process ID. If not specified, there will be no PID file at startup. Default. Default.

Port=27017

# bind_ip=192.168.2.73 # bind address. Default 127.0.0.1, can only be set to true through the local connection #, modify the data directory storage mode, and the files for each database are stored in a different folder in the directory specified by DBPATH. # with this option, configured MongoDB can store data on different disk devices to increase write throughput or disk capacity. The default is false. # it is recommended to configure secondary options at the beginning

Directoryperdb=true # disable logging # enable operation logging for journal to ensure write persistence and data consistency, and create a journal directory under the dbpath directory

Nojournal = true # #

Max connections # maximum number of connections. Default value: depends on the system (that is, the ulimit and file descriptor) limitations. There are no restrictions on its own connections in # MongoDB. When the setting is greater than the system limit, it is invalid, subject to the system limit. # set the value to be higher than the connection pool and the total number of connections to prevent peak connections. # Note: this value cannot be set greater than 20000. MaxConns=1024

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