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This article is to share with you about how to build mongodb architecture Replica Set&Sharding-ttlsa, the editor feels very practical, so share with you to learn, I hope you can get something after reading this article, say no more, follow the editor to have a look.

Build mongodb architecture Replica Set&Sharding-ttlsa in one minute

In the test phase, we need to have a simulated test environment to test whether the functions of all aspects of the application and system architecture meet the requirements. In my company, I often use the following methods to build mongodb replication sets and sharding architectures for developers to test. I also often use this method to simulate online architecture and test related content.

Open a MongoDB shell without connecting any mongod

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> replicaSet = ReplSetTest ({:})

Start three mongod instances

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Et.startSet ()

ReplSetTest n: ReplSetTest n: ports: [,] number

"useHostName" true "oplogSize" 40 "keyFile" undefined "port" 31000 "noprealloc" smallfiles "rest" replSet "" testReplSet "" dbpath "," $set-$node "" restart "undefined" pathOpts "" node "0" set "" testReplSet "

}

Resetting db path ReplSetTest n: ReplSetTest n: ports: [,] number

"useHostName" true "oplogSize" 40 "keyFile" undefined "port" 31001 "noprealloc" smallfiles "rest" replSet "" testReplSet "" dbpath "," $set-$node "" restart "undefined" pathOpts "" node "1" set "" testReplSet "

}

Resetting db path ReplSetTest n: ReplSetTest n: ports: [,] number

"useHostName" true "oplogSize" 40 "keyFile" undefined "port" 31002 "noprealloc" smallfiles "rest" replSet "" testReplSet "" dbpath "," $set-$node "" restart "undefined" pathOpts "" node "2" set "" testReplSet "

}

Resetting db path > replicaSet.initiate ()

"replSetInitiate"_ id"testReplSet"members" {

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:}

"_ id" 1 "host"nd0302012029:31001"

{

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:}

}

#. / mongo-nodb

New "localhost:31000" > primaryDB = conn1.getDB () test

{

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:

:

: [

]

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:

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: ISODate ()

:}

Insert 1000 documents

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For01000 > primaryDB.coll.count ()

> conn2 = Mongo ()

31001

"test" test

/ / secondary is not readable or writable by default

"$err"not master and slaveOk=false"code" 13435 > secondaryDB.coll.insert ({:})

"getLastError" 1 {

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Timestamp (,)

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:}

You can see that secondary does not receive client write operations

Test the automatic failover functionality of the replication set:

Shutdown 31000 instance

Check which instance becomes primary

It can be seen that 31002 instances become the new master

Close replica set

For simple building methods of sharding, see: http://www.ttlsa.com/html/1787.html

The above is how to build mongodb architecture Replica Set&Sharding-ttlsa, the editor believes that there are some knowledge points that we may see or use in our daily work. I hope you can learn more from this article. For more details, please follow the industry information channel.

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