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  • mongodb分片部署说明

    对于使用mongodb进行分片部署本身非常方便,下面将自己最近分片部署的过程记录下来:

    分片:shard1,shard2,shard3

    配置:configsvr1,configsvr2,configsvr3(配置要为奇数个数)

    route:route(两台机器部署)

    机器:

    10.191.250.131 (shard1,shard2,shard3)
    172.20.143.66(shard1,shard2,shard3,configsvr1,configsvr2,configsvr3,route)

    172.20.143.68(shard1,shard2,shard3,route)


    1. 分片配置文件:

    mongod_shard1.conf

    bind_ip = local_IP,
    port = 10001
    dbpath=/data1/mongodb/shard1
    logpath = /data1/mongolog/shard1/mongo.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_shard1.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    shardsvr=true
    replSet=shard1


    *************************

    mongod_shard2.conf

    bind_ip = local_IP,

    port = 10002
    dbpath=/data1/mongodb/shard2
    logpath = /data1/mongolog/shard2/mongo.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_shard2.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    shardsvr=true
    replSet=shard2


    **************************

    mongod_shard3.conf

    bind_ip = local_IP,

    port = 10003
    dbpath=/data1/mongodb/shard3
    logpath = /data1/mongolog/shard3/mongo.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_shard3.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    shardsvr=true
    replSet=shard3


    上面的三个分片配置文件,分别放到三台服务器上;(存放目录可以指定,本次放入:/etc/mongo/)


    2. 配置服务文件

    mongod_configsvr1.conf

    bind_ip = local_IP,
    port = 20001
    dbpath=/data1/mongodb/configsvr1
    logpath = /data1/mongolog/mongo_config1.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_config1.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    configsvr = true


    *************************

    mongod_configsvr2.conf

    bind_ip = local_IP,

    port = 20002
    dbpath=/data1/mongodb/configsvr2
    logpath = /data1/mongolog/mongo_config2.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_config2.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    configsvr = true


    ******************************

    mongod_configsvr3.conf

    bind_ip = local_IP,

    port = 20003
    dbpath=/data1/mongodb/configsvr3
    logpath = /data1/mongolog/mongo_config3.log #日志文件
    logappend = true #使用追加的方式写日志
    pidfilepath = /data1/mongotmp/mongod_config3.pid
    nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    journal = true
    #engine = wiredTiger
    #cacheSizeGB = 38G
    smallfiles=true
    configsvr = true


    上面的三个配置服务文件,放到一台机器:172.20.143.66,(存放目录可以指定,本次放入:/etc/mongo/)


    3. 路由配置文件:

    mongod_route.conf

    bind_ip = local_IP,
    port = 30000
    logpath = /data1/mongolog/mongo_route.log #日志文件
    logappend = true #使用追加的方式写日志
    maxConns = 100
    #chunkSize = 16
    pidfilepath = /data1/mongotmp/mongod_route.pid
    #nohttpinterface = true #关闭http接口,默认关闭27018端口访问
    fork = true  #以守护进程的方式运行MongoDB,创建服务器进程
    #oplogSize = 4096 #复制操作指定的最大大小(以兆字节为单位)日志
    #engine = wiredTiger
    #cacheSizeGB = 38G
    configdb = 172.20.143.68:20001,172.20.143.68:20002,172.20.143.68:20003


    路由配置文件,分别放到两台机器上(172.20.143.68,172.20.143.66)

    从配置文件可以看出,配置服务进程是知道所有分片的,路由服务进程只知道所有配置服务进程;


    4.分别启动配置进程,分片进程,路由进程:

    /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_configsvr1.conf
     /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_configsvr2.conf
     /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_configsvr3.conf
     /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_shard1.conf
     /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_shard2.conf
     /usr/local/mongo/bin/mongod --config /etc/mongo/mongod_shard3.conf
     /usr/local/mongo/bin/mongos --config /etc/mongo/mongod_route.conf


    分别在每台服务器上,启动自己的进程;


    5.配置分片

    随便进入一台分片所在机器:

    配置分片1:

    ./mongo 172.20.143.68 10001

    use admin
    config={_id:'shard1',members:[{_id:0,host:'172.20.143.68:10001'},{ _id:1,host:'172.20.143.66:10001' },{ _id:2,host:'10.191.250.131:10001' }]}
    rs.initiate(config)


    配置分片2:

    ./mongo 172.20.143.68 10002

    use admin
    config={_id:'shard2',members:[{_id:0,host:'172.20.143.68:10002'},{ _id:1,host:'172.20.143.66:10002' },{ _id:2,host:'10.191.250.131:10002' }]}
    rs.initiate(config)


    配置分片3:

    ./mongo 172.20.143.68 10003

    use admin
    config={_id:'shard3',members:[{_id:0,host:'172.20.143.68:10003'},{ _id:1,host:'172.20.143.66:10003' },{ _id:2,host:'10.191.250.131:10003' }]}
    rs.initiate(config)


    配置成功,会显示OK;


    6.配置路由:

    随便进入一台机器mongos:

    ./mongo 172.20.143.68:30000

    use admin
    db.runCommand({addshard:"shard1/172.20.143.68:10001,172.20.143.66:10001,10.191.250.131:10001",name:"shard1"} )
    db.runCommand({addshard:"shard2/172.20.143.68:10002,172.20.143.66:10002,10.191.250.131:10002",name:"shard2"} )
    db.runCommand({addshard:"shard3/172.20.143.68:10003,172.20.143.66:10003,10.191.250.131:10003",name:"shard3"} )


    查看分片:

    mongos> use adminuse admin
    switched to db admin
    mongos> db.runCommand( {listshards : 1 } )db.runCommand( {listshards : 1 } )
    {
            "shards" : [
                    {
                            "_id" : "shard1",
                            "host" : "shard1/10.191.250.131:10001,172.20.143.66:10001,172.20.143.68:10001"
                    },
                    {
                            "_id" : "shard2",
                            "host" : "shard2/10.191.250.131:10002,172.20.143.66:10002,172.20.143.68:10002"
                    },
                    {
                            "_id" : "shard3",
                            "host" : "shard3/10.191.250.131:10003,172.20.143.66:10003,172.20.143.68:10003"
                    }
            ],
            "ok" : 1
    }


    通过上述配置部署,mongodb分片已经部署OK;


    7.对库和表进行分片启用:

    进入一台路由机器,对logdb库的login表启用分片:

    ./mongo 172.20.143.68:30000

    use admin
    db.runCommand( { enablesharding : "logdb" } );
    db.runCommand({ shardcollection: "logdb.login", key: { wid:1 }})


    切换库;

    use logdb


    插入数据:

    for(var i=1;i<=20000;i++) db.login.insert({wid:i,name:"xiaoxiao",tel:"123456"});


    查看数据分布情况:

    mongos> sh.status()sh.status()
    --- Sharding Status --- 
      sharding version: {
            "_id" : 1,
            "minCompatibleVersion" : 5,
            "currentVersion" : 6,
            "clusterId" : ObjectId("577e01a52f5cc8b5b0dd209c")
    }
      shards:
            {  "_id" : "shard1",  "host" : "shard1/10.191.250.131:10001,172.20.143.66:10001,172.20.143.68:10001" }
            {  "_id" : "shard2",  "host" : "shard2/10.191.250.131:10002,172.20.143.66:10002,172.20.143.68:10002" }
            {  "_id" : "shard3",  "host" : "shard3/10.191.250.131:10003,172.20.143.66:10003,172.20.143.68:10003" }
      balancer:
            Currently enabled:  yes
            Currently running:  yes
                    Balancer lock taken at Thu Jul 07 2016 16:43:12 GMT+0800 (CST) by LF-MYSQL-143-68.JD.LOCAL:30000:1467875749:1804289383:Balancer:1681692777
            Failed balancer rounds in last 5 attempts:  0
            Migration Results for the last 24 hours: 
                    2 : Success
                    1 : Failed with error 'migration already in progress', from shard1 to shard2
      databases:
            {  "_id" : "admin",  "partitioned" : false,  "primary" : "config" }
            {  "_id" : "logdb",  "partitioned" : true,  "primary" : "shard1" }
                    logdb.login
                            shard key: { "wid" : 1 }
                            chunks:
                                    shard1  1
                                    shard2  1
                                    shard3  1
                            { "wid" : { "$minKey" : 1 } } -->> { "wid" : 2 } on : shard3 Timestamp(3, 0) 
                            { "wid" : 2 } -->> { "wid" : 10 } on : shard1 Timestamp(3, 1) 
                            { "wid" : 10 } -->> { "wid" : { "$maxKey" : 1 } } on : shard2 Timestamp(2, 0) 
            {  "_id" : "test",  "partitioned" : false,  "primary" : "shard1" }


    mongos> 


    到此处,整个分片部署OK,对外提供route进程信息,则可以开始使用了:)

    首次使用,以此文简单记录mongodb分片部署应用;

    come from:https://blog.csdn.net/qq315zh/article/details/51852225

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  • 原文地址:https://www.cnblogs.com/seasonzone/p/14396248.html
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