[mongodb-user] Aggregation Memory Usage, what I do wrong?

[Vladislav Turchinevich]

[image: after_request.png]

[image: before_request.png] <about:invalid#zClosurez>
Hi, everyone, I have a trouble with I think a cache. Before request, I have
~35kb memory usage, after a request ~594mb. Aggregation looks like this:

aggregate_exp = [
{
'$match': {
'{}'.format(pattern): {'$regex': value, '$options': 'i'}
}
},
{
'$limit': 200
},
{
'$project': {
'_id': False,
'value': '${}'.format(pattern)
}
},
{
'$group': {
'_id': '$value'
}
},
]

How I can free this memory? I can not create indexes because of the length
of the field unlimited
Thx all, I hope you help me
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