CODEWITHSUNDEEP
javamongodbmongotemplate
yuxy
yuxy

Reputation: 19

MongoDB Java client allowDiskUse does not work

I used the allowDiskUse option with the MongoTemplate :

AggregateIterable<Document> results = mongoTemplate.getCollection("match")
            .aggregate(...).allowDiskUse(true)

And still get this error :

Exceeded memory limit for $group, but didn't allow external sort. Pass allowDiskUse:true to opt in.

Is it bugged ?

Note that I use the mongo java client 3.11 and a mongo atlas M2 (v 4.2.9)

I also tried with batchSize and useCursor but it didn't work

Upvotes: 0

Views: 674

Answers (1)

Saxon
Saxon

Reputation: 937

Should be like that:

AggregationResults<Document> results = mongoTemplate.aggregate(new Aggregation(aggregationOperation1, aggregationOperation2, aggregationOperation3, ....).withOptions(AggregationOptions.Builder.allowDiskUse(true)), "match", Document.class);

Of course you must define you aggregation operations.

Upvotes: 0

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