MongoDB Cluster Build-replica set

MongoDB Cluster Build-replica set

Conceptual knowledge, you can refer to my blog address:

Http://www.cnblogs.com/zlp520/p/8088169.html

I. Replica SET scheme (replica set or replica set):

1. There are two ways to build a replica set:

One: On a server, through the way the file and the port number of the way to distinguish;

Second: Find at least three servers, each server through the following configuration;

IP planning for each server to assume the job:

192.168.0.100:27017 Host

192.168.0.101:27017 Replica Set

192.168.0.102:27017 arbitration

Here's an example of building on three servers:

2. Step: (Just follow the steps, 100% success)

(1) Create folders and files:

Folder:

Create Data folder;

Create a DB folder;

Create a logs folder;

Create a configuration folder;

File:

Create a log file;

Example:

For example, my database is stored under the DB folder, and the logs are stored under the logs file:

Database storage location: D:\MongoDB\data\db

Log storage location: D:\MongoDB\data\logs\mongodb.log

(2) Create the configuration file and configuration:

D:\MongoDB\config\mongod.conf

Mongod.conf content:

Dbpath=D:\MongoDB\data\dblogpath=D:\MongoDB\data\logs\mongod.logjournal=true  BIND_IP=192.168.0.100Port=27017replset=rs

(3) Start MongoDB as a configuration file:

DOS command:

You must switch to the directory where the Mogod.exe is located or configure the Windows system environment variables

Mongod--config D:\MongoDB\config\mongod.conf

Use the MONGO Shell to perform actions: (execute each command individually, do not execute together, I tried, error)

DOS command:

Switch to the Mongo.exe directory:

MONGO--port 27017--host 192.168.0.100    To configure the replica set with 100 of this server, (host)rs.initiate () rs.conf () Rs.add (" 192.168.0.101:27017 " ) Rs.addarb ("192.168.0.102:27017") rs.status ()

(4) test Result:

When the host is down, the quorum will execute the poll, and if there are more than one replica set server, a multi-voting service is working as a host. (test method, you can stop the host to see if the copy synchronizes the host's data)

3. Conclusion:

Reduce downtime to a minimum, even without downtime.

Baidu downtime of about 30 minutes, in this earn sub-second internet era, was transmitted swirl, Baidu How can go down, he is not Baidu, and so on topic.

----believe that they can do great things.

MongoDB Cluster Build-replica set