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接続

MongoDB への接続は単に new Mongo とするだけの簡単なものですが、オプションや設定項目が多数あります。 MongoClient::__construct() のページにすべての API オプションをまとめましたが、ここではより実用的な使用例とアドバイスをとりあげます。

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User Contributed Notes 3 notes

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Anonymous ¶

11 years ago


The whole part of persistent connections is outdated. In version 1.3.0:

«Removed the "persist" option, as all connections are now persistent. It can still be used, but it doesn't affect anything.»

As a matter of fact, this note is also wrong. Using option "persist" will throw an

Uncaught exception 'MongoConnectionException' with message '- Found unknown connection string option 'persist' with value 'x'

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daveg at smartbombinteractive dot com ¶

11 years ago


I was getting "couldn't determine master" when trying to connect to a replica set.  It turns out there was a typo in my /etc/hosts entry for on of the replica set members.

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james at dunmore dot me dot uk ¶

11 years ago


We've got a strange gotcha (it maybe a bug with the mongo driver and we will raise an appropriate bug with them), but I think this is worth noting here.....



We were connecting to a replica set, but always getting "couldn't determine master" being returned. Connecting to individual notes without replicaset being set worked fine (directly to the master, or slave okay for reads). Replicaset working fine, and all setup okay.



The issue was our network setup, despite being able to resolve dbname-X.domain.com the server names were returning as dbname-X without the domain. 



Pinging dbname-X worked, but for some reason the driver isn't resolving it. Adding the entry to hosts fixed this though.

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