PHP マニュアル: Set the size for future connection pools

説明

public static bool Mongo::setPoolSize ( int $size )

警告

This method has been DEPRECATED as of version 1.2.3. Relying on this feature is highly discouraged. Please use MongoPool::setSize instead.

Sets the max number of connections new pools will be able to create.

パラメータ

size: The max number of connections future pools will be able to create. Negative numbers mean that the pool will spawn an infinite number of connections.

返り値

Returns the former value of pool size.

例

例1 Mongo::setPoolSize example

If you set the pool size to n and then create n connections, attempting to create an n+1st connection will throw a MongoConnectionException.


<?php

// only allow one connection to a server
Mongo::setPoolSize(1);

// creates one connection to localhost:27017
$m1 = new Mongo();

// attempt to create a second connection to localhost:27017
// only one connection is allowed, so this will throw an exception
$m2 = new Mongo();

?>

上の例の出力は、たとえば以下のようになります。

Fatal error: Uncaught exception 'MongoConnectionException' with message 'no more connections in pool' in /path/to/php/script.php:10
Stack trace:
#0 /path/to/php/script.php(10): Mongo->__construct()
#1 {main}
  thrown in /path/to/php/script.php on line 10

参考

Mongo::getPoolSize
Mongo::poolDebug
The connection documentation.