搭建mongodb副本集

因为机器有限,我们在同一台机器上面模拟副本集的搭建。

主机地址:10.1.10.31

创建数据库文件目录:

Standard1 :

Mkdir -p /usr/local/liuwbdb/standard1/db

Mkdir –p /usr/local/liuwbdb/standard1/log

Standard2:

Mkdir -p /usr/local/liuwbdb/standard2/db

Mkdir –p /usr/local/liuwbdb/standard2/log


Arbiter:

Mkdir –p /usr/local/liuwbdb/arbiter/db

Mkdir –p /usr/local/liuwbdb/arbiter/log

 

因为在同一台主机上面所以对于不同的端口:

Arbiter=>27080;

Standard1 => 27081;

Standard2=> 27082;

启动三个服务:

mongod -dbpath /usr/local/liuwbdb/standard1/db -logpath /usr/local/liuwbdb/standard1/log/log.txt -port 27081 -replSet liuwb -fork -logappend

mongod -dbpath /usr/local/liuwbdb/standard2/db -logpath /usr/local/liuwbdb/standard2/log/log.txt -port 27082 -replSet liuwb -fork –logappend

mongod -dbpath /usr/local/liuwbdb/arbiter/db -logpath /usr/local/liuwbdb/arbiter/log/log.txt -port 27080 -replSet liuwb -fork -logappend

 

初始化副本集:

db.runCommand({"replSetInitiate":{"_id":"liuwb","members":[{"_id":0,"host":"127.0.0.1:27081"},{"_id":1,"host":"127.0.0.1:27082"}]}});

添加仲裁:

Rs.addArb(“127.0.0.1:27080”);

查看状态:

Rs.status();

添加新服务器:

mongod -dbpath /usr/local/liuwbdb/standard3/db -logpath /usr/local/liuwbdb/standard3/log/log.txt -port 27085 -replSet liuwb -fork –logappend

rs.add(“10.1.10.31:27083”);

故障切换:

rs.stepDown();

执行此命令,在查看状态会发现主已经切换到了其他服务器。

 

在php中测试副本集:

$conn = new Mongo("mongodb://10.1.10.31:27080,10.1.10.31:27081,10.1.10.31:27082/test");

$db= $conn->selectDb('test');

$collection = $db->selectCollection('test');

$data = array('name'=>'ximu','sex'=>1,'age'=>23);

try{
    $collection->insert($data,true);
}catch(MongoCursorException $e){
    echo $e->getMessage();
}

 参考文档:http://my.oschina.net/taisha/blog/36967

posted on 2012-05-29 10:03  justup  阅读(863)  评论(0编辑  收藏  举报

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