CursorNotFound error in Pymongo

Question

I'm trying to run the following in Python (with pymongo), however I always get the error message:

CursorNotFound: Cursor not found, cursor id: 16172789264

The code that I have (I tried to set "batch_size", but the error message continued):

import pymongo

client = pymongo.MongoClient()
db = client['tese']
carteiras_cvm = db['carteiras_cvm']

pipeline_acoes =[{"$unwind":"$posicao"},
           {"$match" : {"posicao.detalhes.Tipo de Aplicação:" : { "$in" : ['Ações','Brazilian Depository Receipt - BDR',
           'Ações e outros TVM cedidos em empréstimo','AÇÕES RECEBIDAS EM BONIFICAÇÃO']}}},
           {"$project":{"cnpj_fundo":"$cnpj_fundo", "data_carteira":"$data_carteira", "tipo_aplicacao":"$posicao.detalhes.Tipo de Aplicação:","cod_ativo":"$posicao.detalhes.Cod Ativo:","cod_isin":"$posicao.detalhes.Cod ISIN:","cod_isin":"$posicao.detalhes.Cod ISIN:","descricao":"$posicao.detalhes.Descrição:","posicao_final":"$posicao.posicao_final","perc_carteira":"$posicao.perc_carteira","pl_fundo":"$pl_posicao"}}]


def aggregate(db, pipeline):
    return [doc for doc in carteiras_cvm.aggregate(pipeline).batch_size(5)]

resultados_acoes = aggregate(carteiras_cvm, pipeline_acoes)

Any thoughts?

Your cursor is timeing out, see the following answer: http://stackoverflow.com/a/24200795/4273834 — squanto773, Oct 01 '16 at 07:06

score 1 · Answer 1 · answered Aug 07 '17 at 05:40

1

Try add "no_cursor_timeout=True" in your cursor.

[doc for doc in carteiras_cvm.aggregate(pipeline,no_cursor_timeout=True).batch_size(5)]

Do tell me if this worked for you.

if the above code doesn't work try this link..

Is it possible to create an aggregation in Pymongo with no timeout for the cursor?

answered Aug 07 '17 at 05:40

Yayati Sule

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I tried this, but in the end I formatted my laptop and then the error message disappeared – fmarques Nov 30 '17 at 00:58

score 1 · Answer 2 · edited Feb 22 '18 at 09:30

1

no_cursor_timeout is not valid for method aggregate() in pymongo. You can use maxTimeMS instead.

maxTimeMS (int): The maximum amount of time to allow the operation to run in milliseconds.

edited Feb 22 '18 at 09:30

timiTao

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answered Feb 22 '18 at 08:52

Ronnie Hwang

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CursorNotFound error in Pymongo

2 Answers2