CentOS7 下安装部署 Percona mongoDB 3.6

1.加repo：
yum install https://repo.percona.com/centos/7/RPMS/noarch/percona-release-latest.noarch.rpm
2.安装3.6版本：
yum info Percona-Server-MongoDB-36-server

若安装mongodb4.0版本需要执行命令：
#percona-release enable psmdb-40 release
#yum install percona-server-mongodb
3.修改数据目录:
# mkdir -p /data/mongo/
# chown -R mongod:mongod /data/mongo/
# chmod -R 775 /data/mongo/

4.修改配置文件：
# cat /etc/mongod.conf 
# mongod.conf, Percona Server for MongoDB
# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/

# Where and how to store data.
storage:
  dbPath: /data/mongo
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
      cacheSizeGB: 1
      checkpointSizeMB: 1000
      statisticsLogDelaySecs: 0
      journalCompressor: snappy
      directoryForIndexes: false
    collectionConfig:
      blockCompressor: snappy
    indexConfig:
      prefixCompression: true
setParameter:
    wiredTigerConcurrentReadTransactions: 128
    wiredTigerConcurrentWriteTransactions: 128
systemLog:
  destination: file
  logAppend: true
  path: /var/log/mongo/mongod.log

processManagement:
  fork: true
  pidFilePath: /tmp/mongod.pid

# network interfaces
net:
  port: 27017
  bindIp: 0.0.0.0

注意：
1.bindIp 由127.0.0.1修改为0.0.0.0
2.日志文件socket文件位置的修改。
3.数据存储的默认路径修改：/var/lib/mongodb -->/data/mongo

4.启动：
# systemctl start mongod
设置开机自动启动：
# systemctl enable mongod

5.删除服务：
#systemctl stop mongod
#yum remove percona-server-mongodb*

$ rm -rf /var/lib/mongodb
$ rm -f /etc/mongod.cnf


6.mongodb的关闭和启动：
/usr/bin/mongod -f /etc/mongod.conf

关闭：
1.kill -9 进程
 缺点：
        数据库直接关闭
        数据丢失
        数据文件容易损坏(需要进行修复)
2.systemctl stop mongod
3.shutdownServer()的方式：
> use admin
> db.shutdownServer()

4.命令方式：
mongod -f /etc/mongod.conf  --shutdown

--附录：安装mongodb官方的版本：
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.6/x86_64/RPMS/mongodb-org-server-3.6.8-1.el7.x86_64.rpm
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.6/x86_64/RPMS/mongodb-org-mongos-3.6.8-1.el7.x86_64.rpm
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.6/x86_64/RPMS/mongodb-org-tools-3.6.8-1.el7.x86_64.rpm
wget https://repo.mongodb.org/yum/redhat/7/mongodb-org/3.6/x86_64/RPMS/mongodb-org-shell-3.6.8-1.el7.x86_64.rpm
CentOS7 下安装部署 Percona mongoDB 3.6

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