由于EOS blocks数据同步到Mongo数据库后，体积很大，查询缓慢，并且机器配置比较低，同时运行nodeos写入MongoDB有点遭不住，so，部署下mongo集群，并做分片配置

1. 安装 MongoDB

准备了三台分别1T存储的云主机。三台主机在同一内网，IP分别如下

172.31.32.31 172.31.32.29 172.31.32.30
mongos mongos mongos
config server config server config server
shard server1 主节点 shard server1 副节点 shard server1 仲裁
shard server2 仲裁 shard server2 主节点 shard server2 副节点
shard server3 副节点 shard server3 仲裁 shard server3 主节点

端口分配：

占用 端口
mongos 20000
config 21000
shard1 27001
shard2 27002
shard3 27003

分别在每台机器建立conf、mongos、config、shard1、shard2、shard3六个目录，
因为mongos不存储数据，只需要建立日志文件目录即可。/mnt/data为机器挂载的1T存储盘

mkdir -p /mnt/data/mongodb/conf \
mkdir -p /mnt/data/mongodb/mongos/log \
mkdir -p /mnt/data/mongodb/config/data \
mkdir -p /mnt/data/mongodb/config/log \
mkdir -p /mnt/data/mongodb/shard1/data \
mkdir -p /mnt/data/mongodb/shard1/log \
mkdir -p /mnt/data/mongodb/shard2/data \
mkdir -p /mnt/data/mongodb/shard2/log \
mkdir -p /mnt/data/mongodb/shard3/data \
mkdir -p /mnt/data/mongodb/shard3/log

安装 mongodb-server

sudo apt install mongodb-server

配置环境变量

vi /etc/profile
# MongoDB 环境变量内容
export MONGODB_HOME=~/opt/mongodb
export PATH=$MONGODB_HOME/bin:$PATH

使立即生效

source /etc/profile

2. config server配置服务器

mongodb3.4以后要求配置服务器也创建副本集，不然集群搭建不成功。
(三台机器)添加配置文件 vi /mnt/data/mongodb/conf/config.conf

## Profile content
pidfilepath = /mnt/data/mongodb/config/log/configsrv.pid
dbpath = /mnt/data/mongodb/config/data
logpath = /mnt/data/mongodb/config/log/congigsrv.log
logappend = true

bind_ip = 0.0.0.0
port = 21000
fork = true

#declare this is a config db of a cluster;
configsvr = true

#Replica set name
replSet = configs

#Set the maximum number of connections
maxConns = 20000

启动三台服务器的config server

mongod -f /mnt/data/mongodb/conf/config.conf

登录任意一台配置服务器，初始化配置副本集

连接 MongoDB

mongo --port 21000

config 变量

config = {
    _id : "configs",
    members : [
    {_id : 0, host : "172.31.32.31:21000" },
    {_id : 1, host : "172.31.32.29:21000" },
    {_id : 2, host : "172.31.32.30:21000" }
    ]
}

初始化副本集

rs.initiate(config)

其中，"_id" : "configs"应与配置文件中配置的 replicaction.replSetName 一致，"members" 中的 "host" 为三个节点的 ip 和 port
响应内容如下

> config = {
...     _id : "configs",
...     members : [
...     {_id : 0, host : "172.31.32.31:21000" },
...     {_id : 1, host : "172.31.32.29:21000" },
...     {_id : 2, host : "172.31.32.30:21000" }
...     ]
... }
{
    "_id" : "configs",
    "members" : [
        {
            "_id" : 0,
            "host" : "172.31.32.31:21000"
        },
        {
            "_id" : 1,
            "host" : "172.31.32.29:21000"
        },
        {
            "_id" : 2,
            "host" : "172.31.32.30:21000"
        }
    ]
}
> rs.initiate(config)
{
    "ok" : 1,
    "operationTime" : Timestamp(1535116186, 1),
    "$gleStats" : {
        "lastOpTime" : Timestamp(1535116186, 1),
        "electionId" : ObjectId("000000000000000000000000")
    },
    "$clusterTime" : {
        "clusterTime" : Timestamp(1535116186, 1),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    }
}
configs:SECONDARY> rs.status()

此时会发现终端上的输出已经有了变化。

//从单个一个
>
//变成了
configs:SECONDARY>

查询状态

configs:SECONDARY> rs.status()

输出如下

configs:SECONDARY> rs.status()
{
    "set" : "configs",
    "date" : ISODate("2018-08-24T13:10:23.181Z"),
    "myState" : 1,
    "term" : NumberLong(1),
    "configsvr" : true,
    "heartbeatIntervalMillis" : NumberLong(2000),
    "optimes" : {
        "lastCommittedOpTime" : {
            "ts" : Timestamp(1535116209, 1),
            "t" : NumberLong(1)
        },
        "readConcernMajorityOpTime" : {
            "ts" : Timestamp(1535116209, 1),
            "t" : NumberLong(1)
        },
        "appliedOpTime" : {
            "ts" : Timestamp(1535116209, 1),
            "t" : NumberLong(1)
        },
        "durableOpTime" : {
            "ts" : Timestamp(1535116209, 1),
            "t" : NumberLong(1)
        }
    },
    "members" : [
        {
            "_id" : 0,
            "name" : "172.31.32.31:21000",
            "health" : 1,
            "state" : 2,
            "stateStr" : "SECONDARY",
            "uptime" : 37,
            "optime" : {
                "ts" : Timestamp(1535116209, 1),
                "t" : NumberLong(1)
            },
            "optimeDurable" : {
                "ts" : Timestamp(1535116209, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2018-08-24T13:10:09Z"),
            "optimeDurableDate" : ISODate("2018-08-24T13:10:09Z"),
            "lastHeartbeat" : ISODate("2018-08-24T13:10:22.372Z"),
            "lastHeartbeatRecv" : ISODate("2018-08-24T13:10:21.182Z"),
            "pingMs" : NumberLong(0),
            "syncingTo" : "172.31.32.30:21000",
            "configVersion" : 1
        },
        {
            "_id" : 1,
            "name" : "172.31.32.29:21000",
            "health" : 1,
            "state" : 2,
            "stateStr" : "SECONDARY",
            "uptime" : 37,
            "optime" : {
                "ts" : Timestamp(1535116209, 1),
                "t" : NumberLong(1)
            },
            "optimeDurable" : {
                "ts" : Timestamp(1535116209, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2018-08-24T13:10:09Z"),
            "optimeDurableDate" : ISODate("2018-08-24T13:10:09Z"),
            "lastHeartbeat" : ISODate("2018-08-24T13:10:22.372Z"),
            "lastHeartbeatRecv" : ISODate("2018-08-24T13:10:22.128Z"),
            "pingMs" : NumberLong(0),
            "syncingTo" : "172.31.32.30:21000",
            "configVersion" : 1
        },
        {
            "_id" : 2,
            "name" : "172.31.32.30:21000",
            "health" : 1,
            "state" : 1,
            "stateStr" : "PRIMARY",
            "uptime" : 195,
            "optime" : {
                "ts" : Timestamp(1535116209, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2018-08-24T13:10:09Z"),
            "infoMessage" : "could not find member to sync from",
            "electionTime" : Timestamp(1535116196, 1),
            "electionDate" : ISODate("2018-08-24T13:09:56Z"),
            "configVersion" : 1,
            "self" : true
        }
    ],
    "ok" : 1,
    "operationTime" : Timestamp(1535116209, 1),
    "$gleStats" : {
        "lastOpTime" : Timestamp(1535116186, 1),
        "electionId" : ObjectId("7fffffff0000000000000001")
    },
    "$clusterTime" : {
        "clusterTime" : Timestamp(1535116209, 1),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    }
}
configs:PRIMARY>

3. 配置分片副本集

3.1 设置第一个分片副本集

(三台机器)设置第一个分片副本集
配置文件vi /mnt/data/mongodb/conf/shard1.conf

pidfilepath = /mnt/data/mongodb/shard1/log/shard1.pid
dbpath = /mnt/data/mongodb/shard1/data
logpath = /mnt/data/mongodb/shard1/log/shard1.log
logappend = true

bind_ip = 0.0.0.0
port = 27001
fork = true
replSet = shard1

#declare this is a shard db of a cluster;
shardsvr = true
maxConns = 20000

启动三台服务器的shard1 server

mongod -f /mnt/data/mongodb/conf/shard1.conf

登陆任意一台服务器，初始化副本集(除了172.31.32.30)
连接 MongoDB

mongo --port 27001

使用admin数据库

use admin

定义副本集配置

config = {
    _id : "shard1",
     members : [
         {_id : 0, host : "172.31.32.31:27001" },
         {_id : 1, host : "172.31.32.29:27001" },
         {_id : 2, host : "172.31.32.30:27001" , arbiterOnly: true }
     ]
 }

初始化副本集配置

rs.initiate(config)

响应内容如下

> use admin
switched to db admin
> config = {
...     _id : "shard1",
...      members : [
...          {_id : 0, host : "172.31.32.31:27001" },
...          {_id : 1, host : "172.31.32.29:27001" },
...          {_id : 2, host : "172.31.32.30:27001" , arbiterOnly: true }
...      ]
...  }
{
        "_id" : "shard1",
        "members" : [
                {
                        "_id" : 0,
                        "host" : "172.31.32.31:27001"
                },
                {
                        "_id" : 1,
                        "host" : "172.31.32.29:27001"
                },
                {
                        "_id" : 2,
                        "host" : "172.31.32.30:27001",
                        "arbiterOnly" : true
                }
        ]
}
> rs.initiate(config)
{ "ok" : 1 }

此时会发现终端上的输出已经有了变化。

//从单个一个
>
//变成了
shard1:SECONDARY>

查询状态

shard1:SECONDARY> rs.status()

响应内容如下

shard1:SECONDARY> rs.status()
{
        "set" : "shard1",
        "date" : ISODate("2018-08-24T13:24:09.626Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "heartbeatIntervalMillis" : NumberLong(2000),
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1535117039, 2),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1535117039, 2),
                        "t" : NumberLong(1)
                },
                "appliedOpTime" : {
                        "ts" : Timestamp(1535117039, 2),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1535117039, 2),
                        "t" : NumberLong(1)
                }
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "172.31.32.31:27001",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 396,
                        "optime" : {
                                "ts" : Timestamp(1535117039, 2),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2018-08-24T13:23:59Z"),
                        "infoMessage" : "could not find member to sync from",
                        "electionTime" : Timestamp(1535117038, 1),
                        "electionDate" : ISODate("2018-08-24T13:23:58Z"),
                        "configVersion" : 1,
                        "self" : true
                },
                {
                        "_id" : 1,
                        "name" : "172.31.32.29:27001",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 21,
                        "optime" : {
                                "ts" : Timestamp(1535117039, 2),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1535117039, 2),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2018-08-24T13:23:59Z"),
                        "optimeDurableDate" : ISODate("2018-08-24T13:23:59Z"),
                        "lastHeartbeat" : ISODate("2018-08-24T13:24:08.467Z"),
                        "lastHeartbeatRecv" : ISODate("2018-08-24T13:24:04.801Z"),
                        "pingMs" : NumberLong(0),
                        "syncingTo" : "172.31.32.31:27001",
                        "configVersion" : 1
                },
                {
                        "_id" : 2,
                        "name" : "172.31.32.30:27001",
                        "health" : 1,
                        "state" : 7,
                        "stateStr" : "ARBITER",
                        "uptime" : 21,
                        "lastHeartbeat" : ISODate("2018-08-24T13:24:08.467Z"),
                        "lastHeartbeatRecv" : ISODate("2018-08-24T13:24:04.781Z"),
                        "pingMs" : NumberLong(0),
                        "configVersion" : 1
                }
        ],
        "ok" : 1
}

3.2 设置第二个分片副本集

设置第二个分片副本集
配置文件 vi /mnt/data/mongodb/conf/shard2.conf

pidfilepath = /mnt/data/mongodb/shard2/log/shard2.pid
dbpath = /mnt/data/mongodb/shard2/data
logpath = /mnt/data/mongodb/shard2/log/shard2.log
logappend = true

bind_ip = 0.0.0.0
port = 27002
fork = true

replSet=shard2

#declare this is a shard db of a cluster;
shardsvr = true
maxConns=20000

启动三台服务器的shard2 server

mongod -f /mnt/data/mongodb/conf/shard2.conf

连接 MongoDB

mongo --port 27002

使用admin数据库

use admin

定义副本集配置

config = {
    _id : "shard2",
     members : [
         {_id : 0, host : "172.31.32.31:27002"  , arbiterOnly: true },
         {_id : 1, host : "172.31.32.29:27002" },
         {_id : 2, host : "172.31.32.30:27002" }
     ]
 }

初始化副本集配置

rs.initiate(config)

响应内容如下

> use admin
switched to db admin
> config = {
...     _id : "shard2",
...      members : [
...          {_id : 0, host : "172.31.32.31:27002"  , arbiterOnly: true },
...          {_id : 1, host : "172.31.32.29:27002" },
...          {_id : 2, host : "172.31.32.30:27002" }
...      ]
...  }
{
        "_id" : "shard2",
        "members" : [
                {
                        "_id" : 0,
                        "host" : "172.31.32.31:27002",
                        "arbiterOnly" : true
                },
                {
                        "_id" : 1,
                        "host" : "172.31.32.29:27002"
                },
                {
                        "_id" : 2,
                        "host" : "172.31.32.30:27002"
                }
        ]
}
> rs.initiate(config)
{ "ok" : 1 }
rs.status()

查看状态信息返回

shard2:SECONDARY> rs.status()
{
        "set" : "shard2",
        "date" : ISODate("2018-08-24T13:34:17.459Z"),
        "myState" : 1,
        "term" : NumberLong(1),
        "heartbeatIntervalMillis" : NumberLong(2000),
        "optimes" : {
                "lastCommittedOpTime" : {
                        "ts" : Timestamp(1535117651, 1),
                        "t" : NumberLong(1)
                },
                "readConcernMajorityOpTime" : {
                        "ts" : Timestamp(1535117651, 1),
                        "t" : NumberLong(1)
                },
                "appliedOpTime" : {
                        "ts" : Timestamp(1535117651, 1),
                        "t" : NumberLong(1)
                },
                "durableOpTime" : {
                        "ts" : Timestamp(1535117651, 1),
                        "t" : NumberLong(1)
                }
        },
        "members" : [
                {
                        "_id" : 0,
                        "name" : "172.31.32.31:27002",
                        "health" : 1,
                        "state" : 7,
                        "stateStr" : "ARBITER",
                        "uptime" : 39,
                        "lastHeartbeat" : ISODate("2018-08-24T13:34:15.701Z"),
                        "lastHeartbeatRecv" : ISODate("2018-08-24T13:34:15.286Z"),
                        "pingMs" : NumberLong(0),
                        "configVersion" : 1
                },
                {
                        "_id" : 1,
                        "name" : "172.31.32.29:27002",
                        "health" : 1,
                        "state" : 1,
                        "stateStr" : "PRIMARY",
                        "uptime" : 153,
                        "optime" : {
                                "ts" : Timestamp(1535117651, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2018-08-24T13:34:11Z"),
                        "infoMessage" : "could not find member to sync from",
                        "electionTime" : Timestamp(1535117629, 1),
                        "electionDate" : ISODate("2018-08-24T13:33:49Z"),
                        "configVersion" : 1,
                        "self" : true
                },
                {
                        "_id" : 2,
                        "name" : "172.31.32.30:27002",
                        "health" : 1,
                        "state" : 2,
                        "stateStr" : "SECONDARY",
                        "uptime" : 39,
                        "optime" : {
                                "ts" : Timestamp(1535117651, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDurable" : {
                                "ts" : Timestamp(1535117651, 1),
                                "t" : NumberLong(1)
                        },
                        "optimeDate" : ISODate("2018-08-24T13:34:11Z"),
                        "optimeDurableDate" : ISODate("2018-08-24T13:34:11Z"),
                        "lastHeartbeat" : ISODate("2018-08-24T13:34:15.701Z"),
                        "lastHeartbeatRecv" : ISODate("2018-08-24T13:34:16.331Z"),
                        "pingMs" : NumberLong(0),
                        "syncingTo" : "172.31.32.29:27002",
                        "configVersion" : 1
                }
        ],
        "ok" : 1
}

3.3 设置第三个分片副本集

设置第三个分片副本集
配置文件 vi /mnt/data/mongodb/conf/shard3.conf

pidfilepath = /mnt/data/mongodb/shard3/log/shard3.pid
dbpath = /mnt/data/mongodb/shard3/data
logpath = /mnt/data/mongodb/shard3/log/shard3.log
logappend = true

bind_ip = 0.0.0.0
port = 27003
fork = true
replSet=shard3

#declare this is a shard db of a cluster;
shardsvr = true
maxConns=20000

启动三台服务器的shard3 server

mongod -f /mnt/data/mongodb/conf/shard3.conf

登陆任意一台服务器，初始化副本集(除了172.31.32.31)

mongo --port 27003

使用admin数据库

use admin

定义副本集配置

config = {
    _id : "shard3",
     members : [
         {_id : 0, host : "172.31.32.31:27003" },
         {_id : 1, host : "172.31.32.29:27003" , arbiterOnly: true},
         {_id : 2, host : "172.31.32.30:27003" }
     ]
 }

初始化副本集配置

rs.initiate(config)

响应内容如下

> use admin
switched to db admin
> config = {
...     _id : "shard3",
...      members : [
...          {_id : 0, host : "172.31.32.31:27003" },
...          {_id : 1, host : "172.31.32.29:27003" , arbiterOnly: true},
...          {_id : 2, host : "172.31.32.30:27003" }
...      ]
...  }
{
    "_id" : "shard3",
    "members" : [
        {
            "_id" : 0,
            "host" : "172.31.32.31:27003"
        },
        {
            "_id" : 1,
            "host" : "172.31.32.29:27003",
            "arbiterOnly" : true
        },
        {
            "_id" : 2,
            "host" : "172.31.32.30:27003"
        }
    ]
}
> rs.initiate(config)
{ "ok" : 1 }

查看状态

rs.status()

返回信息如下

shard3:SECONDARY> rs.status()
{
    "set" : "shard3",
    "date" : ISODate("2018-08-24T13:45:19.572Z"),
    "myState" : 1,
    "term" : NumberLong(1),
    "heartbeatIntervalMillis" : NumberLong(2000),
    "optimes" : {
        "lastCommittedOpTime" : {
            "ts" : Timestamp(1535118313, 1),
            "t" : NumberLong(1)
        },
        "readConcernMajorityOpTime" : {
            "ts" : Timestamp(1535118313, 1),
            "t" : NumberLong(1)
        },
        "appliedOpTime" : {
            "ts" : Timestamp(1535118313, 1),
            "t" : NumberLong(1)
        },
        "durableOpTime" : {
            "ts" : Timestamp(1535118313, 1),
            "t" : NumberLong(1)
        }
    },
    "members" : [
        {
            "_id" : 0,
            "name" : "172.31.32.31:27003",
            "health" : 1,
            "state" : 2,
            "stateStr" : "SECONDARY",
            "uptime" : 97,
            "optime" : {
                "ts" : Timestamp(1535118313, 1),
                "t" : NumberLong(1)
            },
            "optimeDurable" : {
                "ts" : Timestamp(1535118313, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2018-08-24T13:45:13Z"),
            "optimeDurableDate" : ISODate("2018-08-24T13:45:13Z"),
            "lastHeartbeat" : ISODate("2018-08-24T13:45:18.293Z"),
            "lastHeartbeatRecv" : ISODate("2018-08-24T13:45:18.675Z"),
            "pingMs" : NumberLong(0),
            "syncingTo" : "172.31.32.30:27003",
            "configVersion" : 1
        },
        {
            "_id" : 1,
            "name" : "172.31.32.29:27003",
            "health" : 1,
            "state" : 7,
            "stateStr" : "ARBITER",
            "uptime" : 97,
            "lastHeartbeat" : ISODate("2018-08-24T13:45:18.293Z"),
            "lastHeartbeatRecv" : ISODate("2018-08-24T13:45:18.602Z"),
            "pingMs" : NumberLong(0),
            "configVersion" : 1
        },
        {
            "_id" : 2,
            "name" : "172.31.32.30:27003",
            "health" : 1,
            "state" : 1,
            "stateStr" : "PRIMARY",
            "uptime" : 126,
            "optime" : {
                "ts" : Timestamp(1535118313, 1),
                "t" : NumberLong(1)
            },
            "optimeDate" : ISODate("2018-08-24T13:45:13Z"),
            "infoMessage" : "could not find member to sync from",
            "electionTime" : Timestamp(1535118232, 1),
            "electionDate" : ISODate("2018-08-24T13:43:52Z"),
            "configVersion" : 1,
            "self" : true
        }
    ],
    "ok" : 1
}

3.4 配置路由服务器 mongos

（三台机器）先启动配置服务器和分片服务器,后启动路由实例启动路由实例:
修改配置文件vi /mnt/data/mongodb/conf/mongos.conf

pidfilepath = /mnt/data/mongodb/mongos/log/mongos.pid
logpath = /mnt/data/mongodb/mongos/log/mongos.log
logappend = true

bind_ip = 0.0.0.0
port = 20000
fork = true

#The configuration server that listens can only have 1 or 3 configs to configure the replica set name of the server.
configdb = configs/172.31.32.31:21000,172.31.32.29:21000,172.31.32.30:21000

maxConns = 20000

启动三台服务器的mongos server

mongos -f /mnt/data/mongodb/conf/mongos.conf

4. 串联路由服务器

目前搭建了mongodb配置服务器、路由服务器，各个分片服务器，不过应用程序连接到mongos路由服务器并不能使用分片机制，还需要在程序里设置分片配置，让分片生效。
登陆任意一台mongos

mongo --port 20000

使用admin数据库

use admin

串联路由服务器与分配副本集

sh.addShard("shard1/172.31.32.31:27001,172.31.32.29:27001,172.31.32.30:27001");
sh.addShard("shard2/172.31.32.31:27002,172.31.32.29:27002,172.31.32.30:27002");
sh.addShard("shard3/172.31.32.31:27003,172.31.32.29:27003,172.31.32.30:27003");

查看集群状态

sh.status()

响应内容如下

mongos> sh.addShard("shard1/172.31.32.31:27001,172.31.32.29:27001,172.31.32.30:27001");
{
    "shardAdded" : "shard1",
    "ok" : 1,
    "$clusterTime" : {
        "clusterTime" : Timestamp(1535118917, 6),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    },
    "operationTime" : Timestamp(1535118917, 6)
}
mongos> sh.addShard("shard2/172.31.32.31:27002,172.31.32.29:27002,172.31.32.30:27002");
{
    "shardAdded" : "shard2",
    "ok" : 1,
    "$clusterTime" : {
        "clusterTime" : Timestamp(1535118917, 10),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    },
    "operationTime" : Timestamp(1535118917, 10)
}
mongos> sh.addShard("shard3/172.31.32.31:27003,172.31.32.29:27003,172.31.32.30:27003");
{
    "shardAdded" : "shard3",
    "ok" : 1,
    "$clusterTime" : {
        "clusterTime" : Timestamp(1535118918, 5),
        "signature" : {
            "hash" : BinData(0,"AAAAAAAAAAAAAAAAAAAAAAAAAAA="),
            "keyId" : NumberLong(0)
        }
    },
    "operationTime" : Timestamp(1535118918, 5)
}
mongos> sh.status()
--- Sharding Status --- 
  sharding version: {
    "_id" : 1,
    "minCompatibleVersion" : 5,
    "currentVersion" : 6,
    "clusterId" : ObjectId("5b8003a67629bf9778831c77")
  }
  shards:
        {  "_id" : "shard1",  "host" : "shard1/172.31.32.29:27001,172.31.32.31:27001",  "state" : 1 }
        {  "_id" : "shard2",  "host" : "shard2/172.31.32.29:27002,172.31.32.30:27002",  "state" : 1 }
        {  "_id" : "shard3",  "host" : "shard3/172.31.32.30:27003,172.31.32.31:27003",  "state" : 1 }
  active mongoses:
        "3.6.3" : 3
  autosplit:
        Currently enabled: yes
  balancer:
        Currently enabled:  yes
        Currently running:  no
        Failed balancer rounds in last 5 attempts:  0
        Migration Results for the last 24 hours: 
                No recent migrations
  databases:
        {  "_id" : "config",  "primary" : "config",  "partitioned" : true }

5. 启用集合分片生效

目前配置服务、路由服务、分片服务、副本集服务都已经串联起来了，但我们的目的是希望插入数据，数据能够自动分片。连接在mongos上，准备让指定的数据库、指定的集合分片生效。
登陆任意一台mongos

mongo --port 20000

使用admin数据库

use admin

指定eos数据库分片生效

db.runCommand( { enablesharding :"eos"});

指定数据库里需要分片的集合和片键，哈希id 分片

db.runCommand( { shardcollection : "eos.blocks",key : {"_id": "hashed"} } );

6. 修改eos config.ini

三台机器其中一台，运行nodeos并同步blocks数据到mongodb

plugin = eosio::mongo_db_plugin
mongodb-uri = mongodb://localhost:20000/eos

重置数据

nodeos --data-dir /mnt/data/data --hard-replay-blockchain --mongodb-wipe

需要清空数据的话加下 --mongodb-wipe
然后查看任意一台mongo数据库

mongo --port 20000
mongos> show databases;
admin   0.000GB
config  0.001GB
eos     0.071GB

已经正确分片存储

参考：segmentfault

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