mongodb副本集搭建

cat >> /etc/sysctl.conf<

cat >>/etc/security/limits.conf<<EOF

soft nproc 65535
hard nproc 65535
soft nofile 65535
hard nofile 65535
EOF

sysctl -p
cat /etc/sysctl.conf
cat /etc/security/limits.conf

1.安装
cd /usr/local/
tar zxvf /root/mongodb-linux-x86_64-rhel62-3.5.10.tgz.gz
ln -s mongodb-linux-x86_64-rhel62-3.5.10 mongo
mkdir /data/mongodb/replset -p

vi /etc/mongo.conf
systemLog:
destination: file
path: “/data/mongodb/replset/mongod.log”
quiet: true
logAppend: true
storage:
dbPath: “/data/mongodb/replset”
directoryPerDB: true
syncPeriodSecs: 60
journal:
enabled: true
commitIntervalMs: 100
processManagement:
fork: true
pidFilePath: “/data/mongodb/replset/mongod.pid”
net:
bindIp: 0.0.0.0
port: 27017
operationProfiling:
slowOpThresholdMs: 100
mode: “slowOp”
#security:
#keyFile: “/data/mongodb/replset/mongodb.key”
#clusterAuthMode: “keyFile”
#authorization: “enabled”
setParameter:
authenticationMechanisms: MONGODB-CR
enableLocalhostAuthBypass: false
logLevel: 4
replication:
oplogSizeMB: 50
replSetName: “repl”

ln -s /usr/local/mongo/bin/mongo /usr/bin/
ln -s /usr/local/mongo/bin/mongod /usr/bin/
mongod --config /etc/mongo.conf

cd
vi .bash_profile
PATH=PATH:PATH:PATH:HOME/bin:/usr/local/mongo/bin
mongo

primary(任选一台)

rs.initiate({_id:‘repl’,members:[{_id:1,host:‘10.65.48.19:27017’}]})
repl:PRIMARY> rs.add(‘10.65.48.20:27017’)
{ “ok” : 1, “operationTime” : Timestamp(1524790964, 1) }
repl:PRIMARY> rs.add(‘10.65.48.21:27017’)
{ “ok” : 1, “operationTime” : Timestamp(1524790970, 1) }

认证方式
use admin
修改 authcurrentVersion:
var schema = db.system.version.findOne({’_id’:‘authSchema’});
schema.currentVersion=3;
db.system.version.save(schema);

use admin
db.createUser({user:“root”,pwd:“mypassword”,roles:[“root”]})

5.停止mongodb(先从后主)
use admin
db.shutdownServer();
6.修改参数文件
vi /etc/mongo.conf
systemLog:
destination: file
path: “/data/mongodb/replset/mongod.log”
quiet: true
logAppend: true
storage:
dbPath: “/data/mongodb/replset”
directoryPerDB: true
syncPeriodSecs: 60
journal:
enabled: true
commitIntervalMs: 100
processManagement:
fork: true
pidFilePath: “/data/mongodb/replset/mongod.pid”
net:
bindIp: 0.0.0.0
port: 27017
operationProfiling:
slowOpThresholdMs: 100
mode: “slowOp”
security:
keyFile: “/data/mongodb/replset/mongodb.key”
clusterAuthMode: “keyFile”
authorization: “enabled”
setParameter:
authenticationMechanisms: MONGODB-CR
enableLocalhostAuthBypass: false
logLevel: 4
replication:
oplogSizeMB: 50
replSetName: “repl”
7.创建key并移动到salve
openssl rand -base64 666 >/data/mongodb/replset/mongodb.key
(主上执行)
chmod 600 /data/mongodb/replset/mongodb.key
scp /data/mongodb/replset/mongodb.key 10.65.48.20:/data/mongodb/replset/
scp /data/mongodb/replset/mongodb.key 10.65.48.21:/data/mongodb/replset/
8.启动mongo（先主后从）
mongod --config /etc/mongo.conf

9.验证
mongo --port 27017 -u “root” -p “mypassword” --authenticationDatabase “admin”

use cc;
db.dept.insert({deptno:10,dname:“ACCOUNTING”,loc:“NEW YORK”});

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