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Mongo DB hanging on executing a long query
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Akshaya Sharma  
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 More options Nov 16 2012, 2:02 pm
From: Akshaya Sharma <akshayak...@gmail.com>
Date: Fri, 16 Nov 2012 11:02:06 -0800 (PST)
Local: Fri, Nov 16 2012 2:02 pm
Subject: Mongo DB hanging on executing a long query
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Hi,

Is there a limit on the length of the query that can be executed in a
single shot? I have a query that includes many pipeline operators like
$unwind, $project & $group, used multiple times to create an equivalent of
a SQL/Oracle nested GroupBy and aliases. But after the query reaches a
particular string length...MongoDB hangs and I have to restart the
instance. What can be done about this?

Thanks


 
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Asya Kamsky  
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 More options Dec 12 2012, 1:12 am
From: Asya Kamsky <a...@10gen.com>
Date: Tue, 11 Dec 2012 22:12:47 -0800 (PST)
Local: Wed, Dec 12 2012 1:12 am
Subject: Re: Mongo DB hanging on executing a long query
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Exactly how big is the query and how are you constructing it?   Are you
using a driver?  Which one?

The other question would be what does it mean "mongoDB hangs" - how do you
determine that it's hanging and not still processing your command?

Asya


 
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