MongoDB安装部署

一、mongodb安装部署

1. 关闭防火墙和selinux

[root@mongodb ~]# iptables -F

[root@mongodb ~]# setenforce 0

[root@mongodb ~]# systemctl stop firewalld

 2.指定一个进程同一时间最多可开启的文件数

[root@mongodb ~]# ulimit -n

1024

[root@mongodb ~]# ulimit -n 65535

[root@mongodb ~]# ulimit -n

65535

3.用户最多可开启的进程数目

[root@mongodb ~]# ulimit -u

7758

[root@mongodb ~]# ulimit -u 65535

[root@mongodb ~]# ulimit -u

65535

[root@mongodb ~]#cat  /etc/rc.local

ulimit –SHn 102400

4.安装版本下载地址：

[root@mongodb ~]#

wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel70-4.0.6.tgz

[root@mongodb ~]# tar xf mongodb-linux-x86_64-rhel70-4.0.6.tgz

[root@mongodb ~]# mv mongodb-linux-x86_64-rhel70-4.0.6 /usr/local/mongodb

[root@mongodb ~]# ln -s /usr/local/mongodb/bin/* /bin/

5.创建数据目录，日志文件及目录并创建相应配置文件

[root@mongodb ~]# mkdir -p /data/mongodb1 //数据目录

[root@mongodb ~]# mkdir -p /data/logs/mongodb //日志目录

[root@mongodb ~]# touch /data/logs/mongodb/mongodb1.log //日志文件

[root@mongodb ~]# cd /usr/local/mongodb/

[root@mongodb mongodb]# mkdir conf //配置文件目录

[root@mongodb mongodb]# vim conf/mongodb1.conf //配置文件

port=27017 //监听端口

dbpath=/data/mongodb1 //指定数据目录

logpath=/data/logs/mongodb/mongodb1.log //指定日志文件路径

logappend=true //允许写入日志

fork=true //允许创建子进程

maxConns=5000 //最大连接数

storageEngine=mmapv1 //存储引擎

6.启动MongoDB数据库，-f指定配置文件

[root@mongodb mongodb]#

/usr/local/mongodb/bin/mongod -f  /usr/local/mongodb/conf/mongodb1.conf

about to fork child process, waiting until server is ready for connections.

forked process: 1825

child process started successfully, parent exiting

[root@mongodb ~]# netstat -lnpt | grep mongod

tcp        0      0 127.0.0.1:27017         0.0.0.0:*               LISTEN

1874/mongod

[root@mongodb ~]# ps aux | grep mongod | grep -v grep

root       1874  4.7  9.3 1502244 93728 ?       Sl   11:55   0:02

/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/mongodb1.conf

 

7、设置开机自动启动

[root@mongodb mongodb]# vim /etc/rc.local

rm -f /data/mongodb1/mongod.lock

mongod -f /usr/local/mongodb/conf/mongodb1.conf

1. 连接数据库

[root@mongodb ~]# mongo

 

> show dbs

admin   0.078GB

config  0.078GB

local   0.078GB

> exit

bye

关闭MongoDB的方式：

方法一：

[root@mongodb ~]# mongo

> use admin

switched to db admin

> db.shutdownServer(); //关闭服务

> exit

bye

[root@mongodb ~]# netstat -anpt |grep mongod

方法二：

[root@mongodb ~]#

/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/mongodb1.conf

about to fork child process, waiting until server is ready for connections.

forked process: 2123

child process started successfully, parent exiting

[root@mongodb ~]# netstat -lnpt | grep mongod

tcp        0      0 127.0.0.1:27017         0.0.0.0:*               LISTEN

2123/mongod

[root@mongodb ~]#

/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/mongodb1.conf --shutdown

killing process with pid: 2123

[root@mongodb ~]# netstat -lnpt | grep mongod

方法三：

[root@mongodb ~]# /usr/local/mongodb/bin/mongod -f

/usr/local/mongodb/conf/mongodb1.conf

about to fork child process, waiting until server is ready for connections.

forked process: 2159

child process started successfully, parent exiting

[root@mongodb ~]# ps aux | grep mongod

root       2159  1.5  8.6 1500184 86340 ?       Sl   12:14   0:00

/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/mongodb1.conf

root       2179  0.0  0.0 112720   984 pts/0    R+   12:14   0:00 grep --color=auto

mongod

[root@mongodb ~]# kill -9 2159 //杀死进程号

[root@mongodb ~]# netstat -lnpt | grep mongod

Mongodb多实例配置：

[root@mongodb ~]# cd /usr/local/mongodb/conf/

[root@mongodb conf]# cp mongodb{1,2}.conf

[root@mongodb conf]# vim mongodb2.conf

 

port=27018             #每个端口号不能相同不然启不来服务

dbpath=/data/mongodb2    #这里要修改

logpath=/data/logs/mongodb/mongodb2.log #这里也要根据情况修改

logappend=true

fork=true

maxConns=5000

storageEngine=mmapv1

 

[root@mongodb conf]# mkdir /data/mongodb2

[root@mongodb conf]# touch /data/logs/mongodb/mongodb2.log

[root@mongodb ~]# /usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/mongodb2.conf

about to fork child process, waiting until server is ready for connections.

forked process: 63890

child process started successfully, parent exiting

[root@mongodb ~]# netstat -lnpt | grep mongod

 

cp        0      0 127.0.0.1:27017         0.0.0.0:*               LISTEN

2159/mongod

tcp        0      0 127.0.0.1:27018         0.0.0.0:*               LISTEN

63890/mongod

编写启停脚本

[root@mongodb ~]# vim /etc/init.d/mongodb

#!/bin/bash
INSTANCE=$1
ACTION=$2
case "$ACTION" in
'start')
/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/"$INSTANCE".conf;;
'stop')
/usr/local/mongodb/bin/mongod -f /usr/local/mongodb/conf/"$INSTANCE".conf --shutdown;;
'restart')
/usr/l