Mongo::getSlave
(PECL mongo >=1.1.0)
Mongo::getSlave — Returns the address being used by this for slaveOkay reads
Описание
This finds the address of the secondary currently being used for reads. It is a read-only method: it does not change anything about the internal state of the object.
When you create a connection to the database, the driver will not immediately
decide on a secondary to use. Thus, after you connect, this function will
return NULL even if there are secondaries available. When you first do a
query with slaveOkay set, at that point the driver will choose a secondary
for this connection. At that point, this function will return the chosen
secondary.
See the query section of this manual for information on distributing reads to secondaries.
Список параметров
У этой функции нет параметров.
Возвращаемые значения
The address of the secondary this connection is using for reads.
This returns NULL if this is not connected to a replica set or not yet
initialized.
Ошибки
Вызывает ошибку уровня E_DEPRECATED
The returned results aren't really useful as the secondary selection process is done on each query and database command execution.
Список изменений
| Версия | Описание |
|---|---|
| 1.2.11 | Emits E_DEPRECATED when used. |
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- Дополнительно
- Функция Mongo::connectUtil() - Connects with a database server
- Функция Mongo::__construct() - The __construct purpose
- Функция Mongo::getPoolSize() - Get pool size for connection pools
- Функция Mongo::getSlave() - Returns the address being used by this for slaveOkay reads
- Функция Mongo::getSlaveOkay() - Get slaveOkay setting for this connection
- Функция Mongo::poolDebug() - Returns information about all connection pools.
- Функция Mongo::setPoolSize() - Set the size for future connection pools.
- Функция Mongo::setSlaveOkay() - Change slaveOkay setting for this connection
- Функция Mongo::switchSlave() - Choose a new secondary for slaveOkay reads
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