Is there any way to supply the allowDiskUse option to an mongoose.js aggregation?
12,696
Solution 1
We don't have a helper for this right now, but an allowDiskUse()
helper function will be included in Mongoose 3.8.12, which I'll ship today: https://github.com/LearnBoost/mongoose/issues/2114
If you want an immediate solution or don't want to upgrade to 3.8.12 (although upgrading is recommended), you can do something like:
var aggregation = MyModel.aggregate(...);
aggregation.options = { allowDiskUse: true };
aggregation.exec(function() {});
Solution 2
Model.aggregate(..).allowDiskUse(true).exec(callback)
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Author by
Dan Steele
Updated on September 20, 2022Comments
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Dan Steele over 1 year
I'm running an aggregation on a collection of around 300k+ records which requires several unwinds and regroups. I'm hitting the following error;
'exception: Exceeded memory limit for $group, but didn\'t allow external sort. Pass allowDiskUse:true to opt in.'
I can't seem to work out how to pass this option through using the mongoose.js API?
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chovy over 3 yearshow to use with promises?