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mongodb集群搭建

mongodb 分片集群搭建(三台主机 使用yaml格式配置文件)

一 下载

从mongodb官方网站下载,下载前需要测试一个账号,按照提示填写信息就好
https://www.mongodb.com/download-center?initial=true#community 下载包名称: mongodb-linux-x86_64-rhel70-4.0.3.tgz

二 集群环境

主机名 IP地址 shard config mongos
mongo1 10.8.31.13 shard1:27001(主) shard2:27002(备) shard3:27003(备)  config:21000(主)  mongos:20000 
mongo2 10.8.13.233 shard1:27001(备) shard2:27002(主) shard3:27003(备)  config:21000(备)  mongos:20000 
mongo3 10.8.31.7 shard1:27001(备) shard2:27002(备) shard3:27003(主)  config:21000(备)  mongos:20000

三 安装

把安装文件复制到mongo1机器上进行配置

3.1 解压

把文件解压到/opt目录下

tar -zxvf mongodb-linux-x86_64-rhel70-4.0.3.tgz -C /opt

3.2 重命名文件夹

mv mongodb-linux-x86_64-rhel70-4.0.3 mongodb

3.3 创建目录

mkdir -p /opt/mongodb/mongos/log

mkdir -p /opt/mongodb/{config,shard1,shard2,shard3}/

3.4 创建配置文件

需要创建三个shard配置文件,一个config配置文件,一个mongos配置文件
shard配置文件模板说明
keyFile和auth选项要在集群配置好后,并且添加了验证用户后在启用
参数说明:
dbpath #存放数据目录
logpath #日志数据目录
pidfilepath #pid文件
logappend #日志追加方式存放
oplogSize #设置oplog的大小(MB)
bind_ip #mongodb绑定的ip地址
port #端口
fork #守护进程运行,创建进程
auth #是否开启验证
replSet #Replica Set的名字
maxConns #最大连接数,默认2000
moprealloc #是否禁用数据文件预分配(往往影响性能)
directoryperdb #数据库是否分目录存放
keyFile #节点之间用于验证文件,内容必须保持一致,权限600,仅Replica Set 模式有效
shard1配置文件

vim /opt/mongodb/shard1/shard1.conf

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/shard1/log/shard1.log

storage:
  dbPath: /opt/mongodb/shard1/data
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
       cacheSizeGB: 1

processManagement:
  fork: true
  pidFilePath: /opt/mongodb/shard1/log/shard1.pid

net:
  port: 27001
  bindIp: 0.0.0.0

replication:
    replSetName: shard1
sharding:
    clusterRole: shardsvr

shard2配置文件

cat /opt/mongodb/shard2/shard2.conf

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/shard2/log/shard2.log

storage:
  dbPath: /opt/mongodb/shard2/data
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
       cacheSizeGB: 1

processManagement:
  fork: true
  pidFilePath: /opt/mongodb/shard2/log/shard2.pid

net:
  port: 27002
  bindIp: 0.0.0.0

replication:
    replSetName: shard2
sharding:
    clusterRole: shardsvr

shard3配置文件

cat /opt/mongodb/shard3/shard3.conf

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/shard3/log/shard3.log

storage:
  dbPath: /opt/mongodb/shard3/data
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
       cacheSizeGB: 1

processManagement:
  fork: true
  pidFilePath: /opt/mongodb/shard3/log/shard3.pid

net:
  port: 27003
  bindIp: 0.0.0.0

replication:
    replSetName: shard3
sharding:
    clusterRole: shardsvr

config配置文件

cat /opt/mongodb/config/configsrv.conf

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/config/log/configsrv.log

storage:
  dbPath: /opt/mongodb/config/data
  journal:
    enabled: true
processManagement:
  fork: true
  pidFilePath: /opt/mongodb/config/log/configsrv.pid

# network interfaces
net:
  port: 21000
  bindIp: 0.0.0.0

replication:
  replSetName: configs

sharding:
    clusterRole: configsvr

mongos配置文件

cat /opt/mongodb/mongos/mongos.conf

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/mongos/log/mongos.log
processManagement:
  fork: true
  pidFilePath: /opt/mongodb/mongos/log/mongos.pid

net:
  port: 20000
  bindIp: 0.0.0.0

sharding:
 configDB: configs/192.168.79.128:21000,192.168.79.129:21000,192.168.79.130:21000

3.5 打包

将/opt/mongodb文件夹打包

cd /opt

tar -zcvf ./mongodb.tar.gz ./mongodb

3.6 拷贝解压

将压缩文件拷贝到mongo2和mongo3两台服务器的/opt目录下,然后解压到/opt目录下

启动shard和config服务

4.1 启动shard服务器

mongo1机器启动服务

mongod -f /opt/mongodb/shard1/shard1.conf

mongod -f /opt/mongodb/shard2/shard2.conf

mongod -f /opt/mongodb/shard3/shard3.conf

mongo2机器启动服务

mongod -f /opt/mongodb/shard1/shard1.conf

mongod -f /opt/mongodb/shard2/shard2.conf

mongod -f /opt/mongodb/shard3/shard3.conf

mongo3机器启动服务

mongod -f /opt/mongodb/shard1/shard1.conf

mongod -f /opt/mongodb/shard2/shard2.conf

mongod -f /opt/mongodb/shard3/shard3.conf

4.2 启动config服务器

mongo1机器启动服务

mongod -f /opt/mongodb/config/configsrv.conf

mongo2机器启动服务

mongod -f /opt/mongodb/config/configsrv.conf

mongo3机器启动服务

mongod -f /opt/mongodb/config/configsrv.conf

五. 配置shard和config集群

5.1 配置shard集群

使用mongo1机器连接shard1分片服务器
注意3点:1.默认主机的优先级是1,需要手动指定优先级
2.如果A主机的27001分片角色为仲裁者,那么不能用A主机来设置初始化27001的分片
3,配置完角色分配之后,无论改主机是什么角色,都会显示为secondry,需要退出之后,再次登录才会显示 再次登录也许不会马上修改 需要等待一段时间.

#mongo --port 27001
use admin
>config = {
_id : "shard1",members : [
{_id : 0, host : "10.8.31.13:27001",priority:2},
{_id : 1, host : "10.8.13.233:27001",},
{_id : 2, host : "10.8.13.7:27001",arbiterOnly:true}]}
> rs.initiate(config)

使用mongo2机器连接shard2分片服务器

#mongo --port 27002
>config = {
_id : "shard2",members : [
{_id : 0, host : "10.8.31.13:27002",arbiterOnly:true },
{_id : 1, host : "10.8.13.233:27002",priority:2},
{_id : 2, host : "10.8.13.7:27002",priority:1}]}
> rs.initiate(config)

使用mongo3机器连接shard3分片服务器

#mongo --port 27003
>config = {
_id : "shard3",members : [
{_id : 0, host : "10.8.31.13:27003",priority:1 },
{_id : 1, host : "10.8.13.233:27003",arbiterOnly:true},
{_id : 2, host : "10.8.13.7:27003",priority:2 }]}
> rs.initiate(config)

5.2 配置config集群

mongo1机器启动服务

#mongo --port 21000
>config = {
_id : "configs",
members : [
{_id : 0, host : "10.8.31.13:21000" ,priority:1},
{_id : 1, host : "10.8.13.233:21000"},
{_id : 2, host : "10.8.31.7:21000" }]}
> rs.initiate(config)

六. 启动mongos服务器

mongo1机器启动服务

mongos -f /opt/mongodb/mongos/mongos.conf

mongo2机器启动服务

mongos -f /opt/mongodb/mongos/mongos.conf

mongo3机器启动服务

mongos -f /opt/mongodb/mongos/mongos.conf

七. 配置mongos服务器

串联路由服务器与分配副本集

mongo --port 20000

sh.addShard("shard1/10.8.31.13:27001,10.8.13.233:27001,10.8.31.7:27001")
sh.addShard("shard2/10.8.31.13:27002,10.8.13.233:27002,10.8.31.7:27002")
sh.addShard("shard3/10.8.31.13:27003,10.8.13.233:27003,10.8.31.7:27003")
查看结果

mongo --port 20000

sh.status()

八. 测试分片功能

8.1 启用数据库分片(一定要)

mongos> sh.enableSharding("test")

或者

mongos> use admin
mongos> db.runCommand( { enableSharding: "test"} )

8.2 查看数据库分区情况

如果partitioned 变为 “true”,则表示此数据库是分片数据库
configs> use config
configs> db.databases.find()

8.3 启用集合分片(一定要 不启动只会落在shard1上)

use test
sh.shardCollection("test.kk", { "id": "hashed" })

8.4 创建集合索引

db.kk.createIndex({ "id": "hashed" })

8.5 插入数据

use test
for (var i=1; i<10000; i++) {
db.kk.insert({"id": i, "myName" : "kk"+i, "myDate" : new Date()});
}

8.6 检查结果

db.kk.stats(); 可以看到分片情况
db.printShardingStatus()

集群的账号密码设置

使用mongos登录
mongo --port 20000
use admin
db.createUser(
{
user:"admin",
pwd:"N$nIpms1",
roles:[{role:"root",db:"admin"}]
}
)

killall mongod
killall mongos

生成密钥文件
openssl rand -base64 756 > /data/mongodb/testKeyFile.file
openssl rand -base64 756 > /opt/mongodb/KeyFile.file
然后把这个文件拷贝到另外2台主机上去

修改后的配置文件

shard2
systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/shard2/log/shard2.log

storage:
  dbPath: /opt/mongodb/shard2/data
  journal:
    enabled: true
  wiredTiger:
    engineConfig:
       cacheSizeGB: 1

processManagement:
  fork: true
  pidFilePath: /opt/mongodb/shard2/log/shard2.pid

net:
  port: 27002
  bindIp: 0.0.0.0

replication:
    replSetName: shard2
sharding:
    clusterRole: shardsvr
security:
    authorization: enabled
    clusterAuthMode: keyFile
    keyFile: /opt/mongodb/KeyFile.file
config
systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/config/log/configsrv.log

storage:
  dbPath: /opt/mongodb/config/data
  journal:
    enabled: true
processManagement:
  fork: true
  pidFilePath: /opt/mongodb/config/log/configsrv.pid

# network interfaces
net:
  port: 21000
  bindIp: 0.0.0.0

replication:
  replSetName: configs

sharding:
    clusterRole: configsvr

security:
    authorization: enabled
    clusterAuthMode: keyFile
    keyFile: /opt/mongodb/KeyFile.file

mongos*

systemLog:
  destination: file
  logAppend: true
  path: /opt/mongodb/mongos/log/mongos.log
processManagement:
  fork: true
  pidFilePath: /opt/mongodb/mongos/log/mongos.pid

net:
  port: 20000
  bindIp: 0.0.0.0

sharding:
 configDB: configs/192.168.79.128:21000,192.168.79.129:21000,192.168.79.130:21000

security:
    clusterAuthMode: keyFile
    keyFile: /opt/mongodb/KeyFile.file

注意重新启动的启动顺序是先启动
1
mongod -f /opt/mongodb/config/configsrv.conf
2
mongod -f /opt/mongodb/shard1/shard1.conf
mongod -f /opt/mongodb/shard2/shard2.conf
mongod -f /opt/mongodb/shard3/shard3.conf
3
mongos -f /opt/mongodb/mongos/mongos.conf

如果需要每块shard 加密码。需要把security注释,然后重启,加密码(每个shard上加)最后再去掉注释,再重启

posted @ 2020-08-03 22:00  zfno11  阅读(401)  评论(0编辑  收藏  举报