在一台机器上模拟mongodb分片

2021-12-10 19:17:39

首先选择一个目录在其中建立以下2个文件夹：data和log

在data下建立9个文件夹：

其中前3个为配置服务器所在文件夹，按照官网要求，一个集群需要3个config server

rs-a-n和rs-b-n为两个replica set（副本集），我们的目的就是将它们给集群了。

一.初始化副本集

初始化mongod：

初始化副本集，这里形成两个副本集shard-a和shard-b，图示为shard-a初始化：（Wonder为我的主机名）

同理，shard-b也可以初始化。使用rs.status()可以查看副本集的状态：

shard-a:PRIMARY> rs.status()

{

        "set" : "shard-a",

        "date" : ISODate("2015-08-04T12:11:31.793Z"),

        "myState" : ,

        "members" : [

                {

                        "_id" : ,

                        "name" : "Wonder:30000",

                        "health" : ,

                        "state" : ,

                        "stateStr" : "PRIMARY",

                        "uptime" : ,

                        "optime" : Timestamp(, ),

                        "optimeDate" : ISODate("2015-08-04T12:11:07Z"),

                        "electionTime" : Timestamp(, ),

                        "electionDate" : ISODate("2015-08-04T12:04:58Z"),

                        "configVersion" : ,

                        "self" : true

                },

                {

                        "_id" : ,

                        "name" : "Wonder:30001",

                        "health" : ,

                        "state" : ,

                        "stateStr" : "SECONDARY",

                        "uptime" : ,

                        "optime" : Timestamp(, ),

                        "optimeDate" : ISODate("2015-08-04T12:11:07Z"),

                        "lastHeartbeat" : ISODate("2015-08-04T12:11:29.800Z"),

                        "lastHeartbeatRecv" : ISODate("2015-08-04T12:11:30.115Z"

),

                        "pingMs" : ,

                        "syncingTo" : "Wonder:30000",

                        "configVersion" :

                },

                {

                        "_id" : ,

                        "name" : "Wonder:30002",

                        "health" : ,

                        "state" : ,

                        "stateStr" : "SECONDARY",

                        "uptime" : ,

                        "optime" : Timestamp(, ),

                        "optimeDate" : ISODate("2015-08-04T12:11:07Z"),

                        "lastHeartbeat" : ISODate("2015-08-04T12:11:29.800Z"),

                        "lastHeartbeatRecv" : ISODate("2015-08-04T12:11:29.804Z"

),

                        "pingMs" : ,

                        "configVersion" :

                }

        ],

        "ok" :

}