CentOS安装mongodb

安装参考：https://www.cnblogs.com/pfnie/articles/6759105.html

mkdir /data1/mongo/log -p

tar -zxvf /data1/software/mongodb-linux-x86_64-3.4.2.tgz /usr/local/

mv /usr/local/mongodb-linux-x86_64-3.4.2 /usr/local/mongodb

mkdir /usr/local/mongodb/etc

vi /usr/local/mongodb/etc/mongodb.conf，内容如下：

dbpath=/data1/mongodb
logpath=/data1/mongodb/log/mongodb.log
logappend=true
port=27017
fork=true
auth=true
pidfilepath=/usr/local/mongodb/mongo.pid
replSet=dsj_dbtest01 #副本集名称
keyFile=/usr/local/mongodb/etc/mongo.pass #群集节点间通信秘钥

ln /usr/local/mongodb/bin/mongod /usr/bin/mongod

启动mongodb：mongod -f /usr/local/mongodb/etc/mongodb.conf

验证：访问 http://mongodb_ip:27017/ 可以打开则表示成功

 添加开机启动项：

vim /etc/init.d/mongod，内容如下：

ulimit -SHn 655350
#!/bin/sh
# chkconfig: - 64 36
# description:mongod
case $1 in
start)
/usr/local/mongodb/bin/mongod --maxConns 20000 --config /usr/local/mongodb/etc/mongodb.conf
;;

stop)
/usr/local/mongodb/bin/mongod  --config /usr/local/mongodb/etc/mongodb.conf  --shutdown
;;
status)
/usr/local/mongodb/bin/mongo 127.0.0.1:27017/admin --eval "db.stats()"
;;
restart)

/usr/local/mongodb/bin/mongod  --config /usr/local/mongodb/etc/mongodb.conf  --shutdown


/usr/local/mongodb/bin/mongod --maxConns 20000  --config /usr/local/mongodb/etc/mongodb.conf

;;
esac

chmod +x /etc/init.d/mongod

chkconfig mongod on

service mongod start

mongodb配置副本集群集：

1.生成keyfile：
openssl rand -base64 745 > /usr/local/mongodb/etc/mongo.pass
chmod 600 /usr/local/mongodb/etc/mongo.pass
2.mongodb.conf添加keyfile：
vim /usr/local/mongodb/etc/mongodb.conf，添加keyfile，如下：
keyFile=/usr/local/mongodb/etc/mongo.pass

3.进入任一 一台mongo实例配置副本集：

mongo -p 10.10.201.76:27017
use admin
conf = {
_id: "dsj_dbtest01", #此为mogodb.conf文件中配置的replset名称
version: 1,
members: [
{ _id: 0, host : "10.10.21.76:27017" },
{ _id: 1, host : "10.10.21.76:27018" },
{ _id: 2, host : "10.10.21.76:27019" }
]
}
rs.initiate(conf)

rs.slaveOk() #设置副本集可读，不是永久生效，永久生效方法如下：

sudo vim /root/.mongorc.js在文件里面添加一行：rs.slaveOk(); #设置副本集可读

参考：https://blog.csdn.net/pengjunlee/article/details/84101732