Opening and closing 16000 Mongo DB instances in PHP (AND now Ruby)

[Christopher Pearce]

Hey,

I've been trying to run some Benchmarks for my application and have
encountered some issues with MongoDB (I'm assuming something to do
with connections) which on looping over the following process, always
dies on around 16000 loops.

The process is simple: open a connection, insert a really small
document, close the connection.

I have a question on StackOverflow with much more information so if
it's alright for me to just leave a link here and get some help there
that's great!

http://stackoverflow.com/questions/8865533/opening-and-closing-16000-mongo-db-instances-in-php

Thanks in advance for any help!

[Nat]

Already answer there. Basically you ran out of file descriptors either on the client or the server side since they may be pending on wait state. You should really use connection pool/persisted connection. It's there to reduce the number of opening/closing connections.

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