mongodb集群

端口192.168.115.3

192.168.115.4

1192.168.115.5

下载MongoDB软件包版本为4.2.14并安装 rpm -ih --force --nodeps *.rpm

2创建文件夹mkdir -p /opt/local/mongo-cluster/conf

3.在目录里创建配置文件cd /opt/local/mongo-cluster/conf vim mongod_node_config.conf

4，注释掉

#security:
# 分片集群同步密钥文件路径
#authorization: enabled
# 是否启用权限登陆（enabled：启用，disabled：禁用）该节点在成功增加root账号权限之前，请勿开启，否则会无法访问
#keyFile: /opt/local/mongo-cluster/keyfile/mongo.key

5，创建vim mongo_node_data.conf

6，创建vim mongos.conf

7，创建keyfile目录

cd /opt/local/mongo-cluster
mkdir keyfile
openssl rand -base64 756 > mongo.key
chmod 600 mongo.key
mv mongo.key keyfile
（三个主机使用同一份mongo.key）

8，创建节点目录（192.168.115.3）

WORK_DIR=/opt/local/mongo-cluster

mkdir -p $WORK_DIR/nodes/config/node1/data
mkdir -p $WORK_DIR/nodes/mongos/node1
mkdir -p $WORK_DIR/nodes/shard1/node1/data
mkdir -p $WORK_DIR/nodes/shard2/node1/data
mkdir -p $WORK_DIR/nodes/shard3/node1/data

9，启动节点（192.168.115.3）

WORK_DIR=/opt/local/mongo-cluster KEYFILE=$WORK_DIR/keyfile/mongo.key CONFFILE=$WORK_DIR/conf/mongod_node_config.conf MONGOD=mongod

$MONGOD --port 26002 --dbpath $WORK_DIR/nodes/config/node1/data --pidfilepath $WORK_DIR/nodes/config/node1/db.pid --logpath $WORK_DIR/nodes/config/node1/db.log --config $CONFFILE

10，启动完成后在二号三号机，重复一号机的操作，把mongo.key复制到二号三号机的/keyfile目录下

scp/opt/local/mongo_cluster/keyfile/mongo.keyroot@192.168.115.4:/opt/local/mongo)cluster/keyfile

11,启动二号三号机

WORK_DIR=/opt/local/mongo-cluster KEYFILE=$WORK_DIR/keyfile/mongo.key CONFFILE=$WORK_DIR/conf/mongod_node_config.conf MONGOD=mongod

二号：$MONGOD --port 26002 --dbpath $WORK_DIR/nodes/config/node2/data --pidfilepath $WORK_DIR/nodes/config/node2/db.pid --logpath $WORK_DIR/nodes/config/node2/db.log --config $CONFFILE

三号：$MONGOD --port 26002 --dbpath $WORK_DIR/nodes/config/node3/data --pidfilepath $WORK_DIR/nodes/config/node3/db.pid --logpath $WORK_DIR/nodes/config/node3/db.log --config $CONFFILE

12，选择其中一个congfig进程执行副本初始化

mongo --port 26002 --host 192.168.115.3

> cfg={
_id:"configReplSet",
configsvr: true,
members:[
{_id:0, host:'192.168.115.3:26002'},
{_id:1, host:'192.168.115.4:26002'},
{_id:2, host:'192.168.115.5:26002'}
]};

rs.initiate(cfg);

13，使用主节点添加管理账号

use admin

db.createUser({
user:'admin',pwd:'******',
roles:[
{role:'clusterAdmin',db:'admin'},
{role:'userAdminAnyDatabase',db:'admin'},
{role:'dbAdminAnyDatabase',db:'admin'},
{role:'readWriteAnyDatabase',db:'admin'}
]})