Installation and use of MongoDB on CentOS 6

CentOS 6 Installation MongoDBhttps://docs.mongodb.com/manual/installation/#tutorial-installation Install MongoDB Professional Edition

# Create/etc/yum.repos.d/mongodb-enterprise.repo
[mongodb-enterprise]
name=mongodb Enterprise Repository
baseurl=https://repo.mongodb.com/yum/redhat/$releasever/mongodb-enterprise/3.4/$basearch/
gpgcheck=1
enabled=1
gpgkey=https://www.mongodb.org/static/pgp/server-3.4.asc

sudo yum install-y mongodb-enterprise

sudo service mongod start

sudo chkconfig mongod on 

sudo yum erase $ (rpm-qa | grep mongodb-enterprise) # Uninstall

Install MongoDB Community Edition

#配置包管理系统

Create/etc/yum.repos.d/mongodb-org-3.6.repo 

[mongodb-org-3.6]
name=mongodb Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.6/x86_64/
gpgcheck=1
enabled=1
GPGKEY=HTTPS://WWW.MONGODB.ORG/STATIC/PGP/SERVER-3.6.ASC

Install MongoDB

sudo yum install-y mongodb-org
#
sudo yum install-y mongodb-org-3.6.3 mongodb-org-server-3.6.3 mongodb-org-shell-3.6.3 mongodb-org-mongos-3.6.3 mongodb-org-tools-3.6.3

Start MongoDB

sudo service mongod start
sudo chkconfig mongod on
sudo service mongod stop

Using MongoDB

MONGO--host 127.0.0.1:27017

Uninstall Delete MongoDB

sudo service mongod stop
sudo yum erase $ (rpm-qa | grep mongodb-org)
sudo rm-r/var/log/mongodb
sudo rm-r/ Var/lib/mongo

MongoDB Create user use

https://www.mongodb.com/
Https://www.mongodb.com/download-center#community MongoDB Loginin

MONGO--port 27017 Help # to check the Use admin # to switch to Administrator Db.createuser ({User: "Aniumongodb", pwd: "Aniumongodb123.") ", roles: [{role:" Useradminanydatabase ", DB:" Admin "}]}) # [Root@mongodb ~]# MONGO--port 27017 MongoDB-Shel L version v3.6.3 connecting TO:MONGODB://127.0.0.1:27017/MONGODB server version:3.6.3 server has startup warnings:201 8-04-02t17:12:06.214+0800 i STORAGE [Initandlisten] 2018-04-02t17:12:06.214+0800 i STORAGE [initandlisten] * * WARNING:   Using The XFS filesystem is strongly recommended with the Wiredtiger storage engine 2018-04-02t17:12:06.214+0800 I storage [Initandlisten] * * Http://dochub.mongodb.org/core/prodnotes-filesystem 2018-04-02t17:12:07.413+0800 I contr  OL [Initandlisten] 2018-04-02t17:12:07.413+0800 I control [Initandlisten] * * warning:access control isn't enabled for
The database. 2018-04-02t17:12:07.413+0800 I control [Initandlisten] * * * Read and Write access to data and configuration are UNR estricted. 2018-04-02t17:12:07.414+0800 I control [Initandlisten] MongoDB Enterprise > Use admin switched to DB admin MongoDB En   Terprise > Db.createuser (.....) {... User: "Aniumongodb", ... pwd: "Aniumongodb123.", ... roles: [{role: "Useradminanydatabase", DB: "admin
" } ]
...   }
... ) Successfully added User: {"user": "Aniumongodb", "roles": [{] Role ":" Useradminanydatabase "," db ":" Admin "}]} MongoDB Enterprise &G T Exit bye

MongoDB User Profile

Built-in Roles (built-in roles):
    1. Database user role: Read, ReadWrite;
    2. Database Management role: Dbadmin, Dbowner, Useradmin;
    3. Cluster Management role: Clusteradmin, Clustermanager, Clustermonitor, Hostmanager;
    4. Backup Recovery role: Backup, restore;
    5. All database roles: Readanydatabase, Readwriteanydatabase, Useradminanydatabase, Dbadminanydatabase
    6. Super User role: Root  
    //There are several other roles indirectly or directly providing access to the system Superuser (Dbowner, Useradmin, Useradminanydatabase)
    7. Internal role: __system

# User Role Permissions
read: Allows the user to read the specified database
readwrite: Allow users
to read and write to the specified database Dbadmin: Allows the user to perform administrative functions in the specified database, such as index creation, deletion, view statistics, or access
to System.profile useradmin: Allows the user to write to the System.users collection, which can be found in the specified database, Delete and manage user
Clusteradmin: Only available in the Admin database, giving users administrative rights to all fragmentation and replication set-related functions.
readanydatabase: Only available in the Admin database, giving users read access to all databases
readwriteanydatabase: Only available in the Admin database, giving users read and write access
to all databases Useradminanydatabase: Available only in the Admin database, giving users useradmin permissions for all databases
dbadminanydatabase: Only available in the admin database. Give users dbadmin permissions for all databases.
Root: Only available in the admin database. Super account, Super privilege    

Create a Super Administrator account

Db.createuser (
...  ..) {
...    User: "Aniudba",
...    PWD: "Aniudba123."    roles: [
...       ] {role: "root", DB: "admin"}
...    ]
...  }
... )
Successfully added User: {"
        user": "Aniudba",
        "roles": [
                {
                        "role": "Root",
                        "db": "Admin" 
  }
        ]
}

MongoDB Startup ErrorWarning:soft rlimits too low. Rlimits set to 1024 processes, 16392 files. Number of processes should is at least 8196

Change/etc/security/limits.d/90-nproc.conf

*          soft    nproc     16392 # 1024 to 16392
root       soft    nproc     Unlimited restart

mongodb service  /etc/init.d/mongod restart

MongoDB Connection Tool

Warning:using The XFS filesystem is strongly recommended with the Wiredtiger storage

The Warning:access control isn't enabled for the database. Read and write access to data and configuration are unrestricted.

Reference: http://www.cnblogs.com/zhoujinyi/p/4610050.html