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Editorial Team
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Asked: 2026-05-27T14:32:59+00:00

I am running into a weird error when trying connect to mongodb. I am

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I am running into a weird error when trying connect to mongodb. I am running this mongo server on amazon. I have multiple processes accessing the same database and thats when I get the error. It doesn’t happen when I run a single process accessing the db. Anyways, this is the error:

PHP Fatal error: Uncaught exception ‘MongoConnectionException’ with
message ‘connecting to
mongodb://(username):(password)@(server):(port)/(db) failed: Cannot
assign requested address’ in /var/www/html/dev/folder/process.php:151

and on line 51:

$m = new Mongo('mongodb://(username):(password)@(server):(port)/(db)');

any ideas of what this means?

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1 Answer

  1. Editorial Team

    That error can occur if the server system runs out of ports. That can be caused from a bug in mongodb (1.0.4) or just by the pure number of connections.

    Reduce connections and/or switching to persistent connections might help as well.

    $connection = new Mongo('mongodb://localhost', array('persist' => 
'php'));

    Source

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