Mongo::getSlave
(PECL mongo >=1.1.0)
Mongo::getSlave — Returns the address being used by this for slaveOkay reads
Опис
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.
Параметри
В цієї функції немає параметрів.
Значення, що повертаються
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.
Помилки/Винятки
Issues E_DEPRECATED warning
The returned results aren't really useful as the secondary selection process is done on each query and database command execution.
Журнал Змін
| Версія | Опис |
|---|---|
| 1.2.11 | Emits E_DEPRECATED when used. |
Прогляньте Також
- MongoCursor::info() - Gets information about the cursor's creation and iteration
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