Add a shard replica set when MongoDB is running

Based on the cluster configuration of quot; Mongodb cluster (shardingwithreplicaset) quot;, try to dynamically Add a shard replica set when the Mongodb cluster is running.

Based on the cluster of quot; Mongodb cluster configuration (sharding with replica set) quot;, try to dynamically Add a shard replica set when the Mongodb cluster is running.

Based on the "Mongodb cluster configuration (sharding with replica set)" cluster (SEE), try to dynamically Add a shard replica set when the Mongodb cluster is running.

(1) Start the replica set Node

Execute the following three batch files to start three Mongod processes, 127.0.0.1: 36000, 127.0.0.1: 36001, and 127.0.0.1: 36002.

Batch File startShardD_0.bat:

Cd d:/mongodb-win32-i386-1.8.0/bin
Call mongod.exe -- logpath d:/mongodb-win32-i386-1.8.0/logs/d/r0.log -- logappend -- dbpath d: /mongodb-win32-i386-1.8.0/data/d/r0 -- port 36000 -- shardsvr -- replSet setD -- rest -- oplogSize 64

Batch File startShardD_1.bat:

Cd d:/mongodb-win32-i386-1.8.0/bin
Call mongod.exe -- logpath d:/mongodb-win32-i386-1.8.0/logs/d/r1.log -- logappend -- dbpath d: /mongodb-win32-i386-1.8.0/data/d/r1 -- port 36001 -- shardsvr -- replSet setD -- rest -- oplogSize 64

Batch File startShardD_2.bat:

Cd d:/mongodb-win32-i386-1.8.0/bin
Call mongod.exe -- logpath d:/mongodb-win32-i386-1.8.0/logs/d/r2.log -- logappend -- dbpath d: /mongodb-win32-i386-1.8.0/data/d/r2 -- port 36002 -- shardsvr -- replSet setD -- rest -- oplogSize 64

(2) configure the replica set
D:/mongodb-win32-i386-1.8.0/cmd> cd d:/mongodb-win32-i386-1.8.0/bin

D:/mongodb-win32-i386-1.8.0/bin> call cmd.exe 127.0.0.1: 36000/admin
MongoDB shell version: 1.8.0
Connecting to: 127.0.0.1: 36000/admin
> Cfg = {_ id: 'setd', members :[
{_ Id: 0, host: '2017. 0.0.1: 100 '},
{_ Id: 1, host: '2017. 0.0.1: 100 '},
{_ Id: 2, host: '2017. 0.0.1: 100 '}...
]};
{
"_ Id": "setD ",
"Members ":[
{
"_ Id": 0,
"Host": "127.0.0.1: 36000"
},
{
"_ Id": 1,
"Host": "127.0.0.1: 36001"
},
{
"_ Id": 2,
"Host": "127.0.0.1: 36002"
}
]
}
> Rs. initiate (cfg)
{
"Info": "Config now saved locally. shocould come online in about a minute .",
"OK": 1
}
>

(3) Add to cluster

Cd d:/mongodb-win32-i386-1.8.0/bin
Call cmd.exe 127.0.0.1: 50000/admin

> Db. runCommand ({addshard: 'setd/127.0.0.1: 36000,127.0 .0.1: 36001,127.0 .0.1: 36002 '})
{"ShardAdded": "setD", "OK": 1}

(4) view Cluster partition information

> Db. printShardingStatus ()
--- Sharding Status ---
Sharding version: {"_ id": 1, "version": 3}
Shards:
{
"_ Id": "ShardSetA ",
"Host": "setA/127.0.0.1: 10000,127.0 .0.1: 10001,127.0 .0.1: 10002"
}
{
"_ Id": "ShardSetB ",
"Host": "setB/127.0.0.1: 20000,127.0 .0.1: 20001,127.0 .0.1: 20002"
}
{
"_ Id": "ShardSetC ",
"Host": "setC/127.0.0.1: 30000,127.0 .0.1: 30001,127.0 .0.1: 30002"
}
{
"_ Id": "setD ",
"Host": "setD/127.0.0.1: 36000,127.0 .0.1: 36001,127.0 .0.1: 36002"
}
Databases:
{"_ Id": "admin", "partitioned": false, "primary": "config "}
{"_ Id": "wlb", "partitioned": true, "primary": "ShardSetA "}
Wlb. wlb_orders chunks:
ShardSetB 5
ShardSetA 4
ShardSetC 5
{"Order_id" :{$ minKey: 1 }}-- >>{ "order_id": NumberLong (1)} on: ShardSetB {"t": 5000, "I ": 1}
{"Order_id": NumberLong (1)} -- >>{ "order_id": NumberLong (19943)} on: ShardSetA {"t": 8000, "I": 1}
{"Order_id": NumberLong (19943)} -- >>{ "order_id": NumberLong (37015)} on: ShardSetC {"t": 7000, "I": 1}
{"Order_id": NumberLong (37015)} -- >>{ "order_id": NumberLong (54080)} on: ShardSetB {"t": 4000, "I": 2}
{"Order_id": NumberLong (54080)} -- >>{ "order_id": NumberLong (71148)} on: ShardSetB {"t": 4000, "I": 4}
{"Order_id": NumberLong (71148)} -- >>{ "order_id": NumberLong (88201)} on: ShardSetA {"t": 5000, "I": 2}
{"Order_id": NumberLong (88201)} -- >>{ "order_id": NumberLong (105259)} on: ShardSetC {"t": 6000, "I": 2}
{"Order_id": NumberLong (105259)} -- >>{ "order_id": NumberLong (122284)} on: ShardSetC {"t": 6000, "I": 4}
{"Order_id": NumberLong (122284)} -- >>{ "order_id": NumberLong (139303)} on: ShardSetC {"t": 6000, "I": 6}
{"Order_id": NumberLong (139303)} -- >>{ "order_id": NumberLong (173354)} on: ShardSetC {"t": 6000, "I": 8}
{"Order_id": NumberLong (173354)} -- >>{ "order_id": NumberLong (207403)} on: ShardSetA {"t": 7000, "I": 2}
{"Order_id": NumberLong (207403)} -- >>{ "order_id": NumberLong (241449)} on: ShardSetA {"t": 7000, "I": 4}
{"Order_id": NumberLong (241449)} -- >>{ "order_id": NumberLong (275497)} on: ShardSetB {"t": 8000, "I": 2}
{"Order_id": NumberLong (275497)} -- >>{ "order_id" :{$ maxKey: 1 }}on: ShardSetB {"t": 8000, "I ": 3}
{"_ Id": "adimin", "partitioned": false, "primary": "ShardSetA "}

Now, the replica set setD is added to the cluster as a shard.