如何搭建mongodb架构Replica Set&Sharding—ttlsa

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# ./mongo --nodb

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> replicaSet = newReplSetTest({"nodes": 3})

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> replicaSet.startSet()

ReplSetTest Starting Set

ReplSetTest n is: 0

ReplSetTest n: 0ports: [ 31000, 31001, 31002] 31000number

{

"useHostName": true,

"oplogSize": 40,

"keyFile": undefined,

"port": 31000,

"noprealloc": "",

"smallfiles": "",

"rest": "",

"replSet": "testReplSet",

"dbpath": "$set-$node",

"restart": undefined,

"pathOpts": {

"node": 0,

"set": "testReplSet"

}

}

ReplSetTest Starting....

Resetting db path '/data/db/testReplSet-0'

ReplSetTest n is: 1

ReplSetTest n: 1ports: [ 31000, 31001, 31002] 31001number

{

"useHostName": true,

"oplogSize": 40,

"keyFile": undefined,

"port": 31001,

"noprealloc": "",

"smallfiles": "",

"rest": "",

"replSet": "testReplSet",

"dbpath": "$set-$node",

"restart": undefined,

"pathOpts": {

"node": 1,

"set": "testReplSet"

}

}

ReplSetTest Starting....

Resetting db path '/data/db/testReplSet-1'

ReplSetTest n is: 2

ReplSetTest n: 2ports: [ 31000, 31001, 31002] 31002number

{

"useHostName": true,

"oplogSize": 40,

"keyFile": undefined,

"port": 31002,

"noprealloc": "",

"smallfiles": "",

"rest": "",

"replSet": "testReplSet",

"dbpath": "$set-$node",

"restart": undefined,

"pathOpts": {

"node": 2,

"set": "testReplSet"

}

}

ReplSetTest Starting....

Resetting db path '/data/db/testReplSet-2'

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> replicaSet.initiate()

{

"replSetInitiate": {

"_id": "testReplSet",

"members": [

{

"_id": 0,

"host": "nd0302012029:31000"

},

{

"_id": 1,

"host": "nd0302012029:31001"

},

{

"_id": 2,

"host": "nd0302012029:31002"

}

]

}

}

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# ./mongo --nodb

> conn1 = newMongo("localhost:31000")

> primaryDB = conn1.getDB("test") //testReplSet是默认的复制集测试名

test

> primaryDB.isMaster()

{

"setName": "testReplSet",

"ismaster": true,

"secondary": false,

"hosts": [

"nd0302012029:31000",

"nd0302012029:31002",

"nd0302012029:31001"

],

"primary": "nd0302012029:31000",

"me": "nd0302012029:31000",

"maxBsonObjectSize": 16777216,

"maxMessageSizeBytes": 48000000,

"localTime": ISODate("2013-07-28T04:23:49.866Z"),

"ok": 1

}

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>for(i=0; i<<>1000; i++) { primaryDB.coll.insert({count: i}) }

> primaryDB.coll.count()

1000

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> conn2 = newMongo("localhost:31001")

connection to localhost:31001

> secondaryDB = conn2.getDB("test")

test

> secondaryDB.coll.find() //默认情况下secondary不可读不可写

error: { "$err": "not master and slaveOk=false", "code": 13435}

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> secondaryDB.coll.insert({"count": 1001})

> secondaryDB.runCommand({"getLastError": 1})

{

"err": "not master",

"code": 10058,

"n": 0,

"lastOp": Timestamp(0, 0),

"connectionId": 75,

"ok": 1

}