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 解压 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
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#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 #RS replSet = rs01 oplogSize = 4096 # add for 3.4 # shardsvr = true #SCO #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. 解决 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~
