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MongoDB 官网下载安装包
3.6.8 版本
wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.6.8.tgz
3.4.18 版本
wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel62-3.4.18.tgz
tar zxf mongodb-linux-x86_64-rhel62-3.4.18.tgz
mv mongodb-linux-x86_64-rhel62-3.4.18 /usr/local/mongodb
echo export PATH=$PATH:/usr/local/mongodb/bin /etc/profile
source /etc/profile
groupadd mongo
useradd -g mongo mongo
mkdir -p /server/mongodb27017/data
mkdir -p /server/mongodb27017/log
chown -R mongo.mongo /server/mongodb27017/
chown -R mongo.mongo /usr/local/mongodb
vim /server/mongodb27017/mongodb27017.cnf
配置文件
#SERVER
fork = true
port = 27017
quiet = true
dbpath = /server/mongodb27017/data
logpath = /server/mongodb27017/log/mongod.log
logappend = true
journal = true
#auth = true # 开启认证
# =3.4
nohttpinterface = true
directoryperdb = true
#SLOW_LOG
profile = 1
slowms = 500
replSet = rs01
oplogSize = 4096
# add for 3.4
# shardsvr = true
#cinfigsvr = true
#configdb = MSCHOST
#USER
#keyFile=/
#setParameter=enableLocalhostAuthBypass=1
storageEngine=wiredTiger
wiredTigerCacheSizeGB=1
wiredTigerCollectionBlockCompressor=snappy
#mongo_version=mongodb34
启动
sudo -u mongo mongod -f /server/mongodb27017/mongodb27017.cnf
进入命令行
mongo 127.0.0.1:27017
敲命令报错
errmsg : not master and slaveOk=false ,
初始化
rs.initiate({_id: rs01 ,version:1,members:[{_id:0,host: 10.238.162.33:27017}]}) ;
完成
安装完成后进入 MongoDB 的 shell 命令行后出现了很多报警如下,虽然都是一些 warning,不影响使用,但是感觉就像是一个人处于亚健康状态,当数据库压力过大的时候这些 warning 有可能导致数据库出现 error。所以下面挨着每个解决一下。
告警 1
** WARNING: You are running this process as the root user, which is not recommended.
解决:启动 MongoDB 的时候使用普通用户,而不用 root 用户执行
sudo -u mongo mongod -f /server/mongodb27017/mongodb27017.cnf
告警 2
2018-11-15T17:21:03.335+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is always .
2018-11-15T17:21:03.335+0800 I CONTROL [initandlisten] ** We suggest setting it to never
2018-11-15T17:21:03.335+0800 I CONTROL [initandlisten]
2018-11-15T17:21:03.335+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is always .
2018-11-15T17:21:03.335+0800 I CONTROL [initandlisten] ** We suggest setting it to never
解决
echo never /sys/kernel/mm/transparent_hugepage/enabled
echo never /sys/kernel/mm/transparent_hugepage/defrag
并添加到 /etc/rc.local
告警 3
** WARNING: soft rlimits too low. rlimits set to 4096 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.
vim /etc/security/limits.conf
mongo soft nofile 65535
mongo hard nofile 65535
mongo soft nproc 65535
mongo hard nproc 65535
mongo soft stack 1024
mongo hards tack 1024
vim /etc/security/limits.d/90-nproc.conf
soft nproc 65535
告警 4
WARNING: Access control is not enabled for the database.
2018-11-15T17:38:44.181+0800 I CONTROL [initandlisten] ** Read and write access to data and configuration is unrestricted.
use admin
db.createUser(
user: root , // 用户名
pwd: root , // 密码
roles: [ { role: userAdminAnyDatabase , db: admin } ] // 权限
在配置文件中添加
auth = true
依次解决后进入 shell 命令行,真的干净!没有任何告警信息,简直是强迫症患者福音 O(∩_∩)O 哈哈~
再见 各位~
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