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mongodb分片副本集部署

mongodb分片副本集部署

作者: 看五年前自己的文章真是唏嘘不已 | 来源:发表于2018-11-13 12:11 被阅读0次
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    mongdb3.4 的副本集搭建与以前的版本有些区别,最主要的区别就是 configdb强制复制集(CSRS)。网上很多的教程都没有注意到这一点,所以在使用3.4版本的时候搭建不成功。

    搭建时遇到不少坑,几乎放弃的情况下,借助谷歌翻译查看了官方文档,问题迎刃而解。

    官方文档:Sharding - MongoDB Manual 3.4

    一、测试环境

    1. 操作体统:VMware + ubuntu16.04 + 静态IP

    2. mongodb版本:mongodb-3.4

    二、布局预览

    <figure style="margin: 1em 0px; color: rgb(26, 26, 26); font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> image

    </figure>

    <figure style="margin: 1.6em 0px 1em; color: rgb(26, 26, 26); font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> image

    </figure>

    三、资源分配

    IP分配:

    机器1:192.168.80.61

    机器2:192.168.80.62

    机器3:192.168.80.63

    机器4:192.168.80.64

    机器5:192.168.80.65

    机器6:192.168.80.66

    端口分配:

    mongos:18000

    config:17000

    shard01:18001

    shard02:18002

    shard03:18003

    shard04:18004

    shard05:18005

    shard06:18006

    <figure style="margin: 1em 0px; color: rgb(26, 26, 26); font-family: -apple-system, BlinkMacSystemFont, "Helvetica Neue", "PingFang SC", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", "WenQuanYi Micro Hei", sans-serif; font-size: medium; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; background-color: rgb(255, 255, 255); text-decoration-style: initial; text-decoration-color: initial;"> image

    </figure>

    表1

    创建相关目录:

    三台主机分别新建如下目录:

    /home/ubuntu/data/mongodb/config/data
    /home/ubuntu/data/mongodb/config/log/
    /home/ubuntu/data/mongodb/mongos/log
    
    

    六台机器分别创建 表1 对应的分片,每台机器三个分片

    /home/ubuntu/data/mongodb/shard0X/data
    /home/ubuntu/data/mongodb/shard0X/log
    
    

    四、启动配置服务器

    这是最关键的一步,网上一些教程报错的主要原因就在于congfigsvr配置不是针对版本3.4分别

    1. 在每一台路由机器上启动配置服务器(非第一次启动加
      --logappend)
    mongod –configsvr --replSet cfgsvr –port 17000 –dbpath /home/ubuntu/data/mongodb/config/data  --logpath /home/ubuntu/data/mongodb/config/log/config.log –fork
    
    

    2. 登录任意一台配置服务器,初始化配置副本集

    mongo 127.0.0.1:17000
    
    > config = {_id:"cfgsvr", configsvr:true, members:[
    
    {_id:0, host:"192.168.80.61:17000"},
    
    {_id:0, host:"192.168.80.62:17000"},
    
    {_id:0, host:"192.168.80.63:17000"}
    
    ]}
    
    >rs.initiate(config)
    
    

    五、启动分片

    分别在每台机器上启动的设计的分片(例见上图)shardxx、shardxx、shardxx。(非第一次启动加 --logappend)

    #Shard01:

    mongod --shardsvr --replSet shard01 --port 18001 --dbpath /home/ubuntu/data/mongodb/shard01/data --logpath /home/ubuntu/data/mongodb/shard01/log/shard01.log --fork 
    
    

    #Shard02:

    mongod --shardsvr --replSet shard02 --port 18002 --dbpath /home/ubuntu/data/mongodb/shard02/data --logpath /home/ubuntu/data/mongodb/shard02/log/shard02.log --fork 
    
    

    #Shard03:

    mongod --shardsvr --replSet shard03 --port 18003 --dbpath /home/ubuntu/data/mongodb/shard03/data --logpath /home/ubuntu/data/mongodb/shard03/log/shard03.log --fork 
    
    

    #Shard04:

    mongod --shardsvr --replSet shard04 --port 18004 --dbpath /home/ubuntu/data/mongodb/shard04/data --logpath /home/ubuntu/data/mongodb/shard04/log/shard04.log --fork 
    
    

    #Shard05:

    mongod --shardsvr --replSet shard05 --port 18005 --dbpath /home/ubuntu/data/mongodb/shard05/data --logpath /home/ubuntu/data/mongodb/shard05/log/shard05.log --fork
    
    

    #Shard06:

    mongod --shardsvr --replSet shard06 --port 18006 --dbpath /home/ubuntu/data/mongodb/shard06/data --logpath /home/ubuntu/data/mongodb/shard06/log/shard06.log --fork
    
    

    六、启动mongos服务器

    分别在每一台路由机器上启动mongos服务器,(非第一次启动加 --logappend)注意命令:mongos 不是mongod

    mongos --configdb cfgsvr/192.168.80.61:17000, 192.168.80.62:17000, 192.168.80.63:17000 --port 18000 --logpath /home/ubuntu/data/mongodb/mongos/log/mongos.log --fork
    
    

    七、初始化分片

    在任一机器(机器上有对应shardxx即可,可在1、4号机器),通过分片端口登陆分片,并初始化分片

    #Shard01:

    mongo 127.0.0.1:18001
    
    > use admin
    
    > config = { _id:"shard01", members:[
    
    {_id:0,host:"192.168.80.61:18001"},
    
    {_id:1,host:"192.168.80.66:18001"},
    
    {_id:2,host:"192.168.80.65:18001"}]
    
    }
    
    > rs.initiate(config)
    
    

    #Shard02:**

    mongo 127.0.0.1:18002
    
    > use admin
    
    > config = { _id:"shard02", members:[
    
    {_id:0,host:"192.168.80.62:18002"},
    
    {_id:1,host:"192.168.80.61:18002"},
    
    {_id:2,host:"192.168.80.66:18002"}]
    
    }
    
    > rs.initiate(config)
    
    

    #Shard03:**

    mongo 127.0.0.1:18003
    
    > use admin
    
    > config = { _id:"shard03", members:[
    
    {_id:0,host:"192.168.80.63:18003"},
    
    {_id:1,host:"192.168.80.62:18003"},
    
    {_id:2,host:"192.168.80.61:18003"}]
    
    }
    
    > rs.initiate(config)
    
    

    #Shard04:**

    mongo 127.0.0.1:18004
    
    > use admin
    
    > config = { _id:"shard04", members:[
    
    {_id:0,host:"192.168.80.64:18004"},
    
    {_id:1,host:"192.168.80.63:18004"},
    
    {_id:2,host:"192.168.80.62:18004"}]
    
    }
    
    > rs.initiate(config)
    
    

    #Shard05:**

    mongo 127.0.0.1:18005
    
    > use admin
    
    > config = { _id:"shard05", members:[
    
    {_id:0,host:"192.168.80.65:18005"},
    
    {_id:1,host:"192.168.80.64:18005"},
    
    {_id:2,host:"192.168.80.63:18005"}]
    
    }
    
    > rs.initiate(config)
    
    

    #Shard06:**

    mongo 127.0.0.1:18006
    
    > use admin
    
    > config = { _id:"shard06", members:[
    
    {_id:0,host:"192.168.80.66:18006"},
    
    {_id:1,host:"192.168.80.65:18006"},
    
    {_id:2,host:"192.168.80.64:18006"}]
    
    }
    
    > rs.initiate(config)
    
    

    八、启用分片

    登陆mongos,添加所有分片

    mongo 127.0.0.1:18000
    
    > use  admin
    > sh.addShard("shard01/192.168.80.61:18001,192.168.80.66:18001,192.168.80.65:18001"})
    > sh.addShard("shard02/192.168.80.62:18002,192.168.80.61:18002,192.168.80.66:18002"})
    > sh.addShard("shard03/192.168.80.63:18003,192.168.80.62:18003,192.168.80.61:18003"})
    > sh.addShard("shard04/192.168.80.64:18004,192.168.80.63:18004,192.168.80.62:18004"})
    > sh.addShard("shard05/192.168.80.65:18005,192.168.80.64:18005,192.168.80.63:18005"})
    > sh.addShard("shard06/192.168.80.66:18006,192.168.80.65:18006,192.168.80.64:18006"})
    
    

    九、指定数据库、集合、片键

    登陆mongos,这里可以选择hash分片还是range分片

    mongo 127.0.0.1:18000
    
    > sh.enableSharding("testdb")
    
    >Sh.shardCollection("testdb.table1",{id:1}})
    

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