mongodb installation and use
1. mongodb installation
Install C compiler
yum -y install gcc*
Upload the mongodb installation package Upload mongodb
to the /home directory to
create a mongodb database directory
mkdir -p /data/db
mkdir -p /var/mongodb
touch /var/mongodb/mongodb.log
Unzip the installation package
tar xf mongodb-linux-x86_64-rhel70-3.4.2.tgz
Folder rename
mv mongodb-linux-x86_64-rhel70-3.4.2 /home/mongodb
Set power-on auto-start
运行命令行：vim /etc/rc.d/rc.local
在rc.local文件最后面加入下面命令
/home/mongodb/bin/mongod --auth --fork --dbpath=/data/db/ --logpath=/var/mongodb/mongodb.log
保存退出后给此文件增加执行权限
运行命令行：chmod +x /etc/rc.d/rc.local
2. Mongodb configuration
2.1 Modify the mongodb version number
2.1.1 Log in to mongodb in non-authenticated mode
/home/mongodb/bin/mongod （保存窗口）
/home/mongodb/bin/mongo
2.1.2 Log in to the administrator database
use admin
2.1.3 Create an administrator account
db.createUser({
user: "dba",
pwd: "dba",
roles:
[
{
role: "readWriteAnyDatabase", db: "admin"
}
]})
2.1.4 Change the version number to 3
var schema = db.system.version.findOne({"_id":"authSchema"})
schema.currentVersion=3
db.system.version.save(schema)
2.1.5 View the revised version
db.system.version.find()
2.2 Create a database
use lyl
2.2.1 Insert data
db.usr.insert({'name':'bkty','id':2})
Note: A piece of data must be inserted here to keep the database, otherwise the creation will fail
2.3 Create an authenticated user
2.3.1 Login to the database
use lyl
2.3.2 Create Ordinary User
db.createUser({
user: "sa",
pwd: "sa",
roles:
[
{
role: "readWrite", db: "lyl"
}
]})
2.3.3 Create a role under non-verified login
use admin
db.createRole({role:'sysadmin',roles:[],
privileges:[
{resource:{anyResource:true},actions:['anyAction']}
]})
2.4 Create an administrator user and grant the above role permissions
db.createUser({
user:'admin',
pwd:'admin',
roles:[
{role:'sysadmin',db:'admin'}
]})
2.5 Designated user authentication login
/home/mongodb/bin/mongod --auth --fork --dbpath=/data/db/ --logpath=/var/mongodb/mongodb.log
/home/mongodb/bin/mongo
2.5.1 Login to the database
use lyl
2.5.2 Designated user authentication login
db.auth('sa','sa')
3. Backup
Create automatic backup and delete scripts
vim /root/mongodbbackup.sh
在文件中增加如下内容
#!/bin/bash
mkdir -p /home/mongodb_all/mongodb_bak_now /home/mongodb_all/mongodb_bak_list
DUMP=/home/mongodb/bin/mongodump
OUT_DIR=/home/mongodb_all/mongodb_bak_now
TAR_DIR=/home/mongodb_all/mongodb_bak_list
DATE=`date +%Y%m%d%H%M%S`
DB_USER=admin
DB_PASS=admin
IP=192.168.168.12:27017
TAR_BAK="mongodb_bak_$DATE.tar.gz"
cd $OUT_DIR
rm -rf $OUT_DIR/*
mkdir -p $OUT_DIR/$DATE
$DUMP -h $IP -u $DB_USER -p $DB_PASS --authenticationDatabase "admin" -o $OUT_DIR/$DATE
tar -zcvf $TAR_DIR/$TAR_BAK $OUT_DIR/$DATE
rm -rf $TAR_DIR/mongodb_bak_`date -d '-3 days' +%Y%m%d`*.tar.gz
exit
Note: The IP address of IP=192.168.168.12:27017 in the script is the IP address and port of the server where you installed mongodb. Remember to modify it, remember! ! !
4 Turn on the firewall
To check whether the firewall is turned on, run the following command line to
run the command line: systemctl status firewall.service
If it shows active, it means the firewall is turned on, you need to check if port 27017 of mongodb is open, run the following command line to
run the command line: firewall-cmd --list-all
If port 27017 is not in the list, you need to open the port, run the following command line
Run command line 1: firewall-cmd --permanent --add-port=27017/tcp
Run command line 2: firewall- cmd- -reload