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Improve sorting performance

Sorting always ends up doing a collection scan when the selected index for the find/match does meet the sort requirement. The sort effectively makes the performance worse by 15-25 times for the "matched" dataset which runs into 10s of thousands (n...

Guest over 3 years ago in Performance & Optimization 0 Submitted

1 VOTE

Build MongoDB with PGO

I would like to see support for PGO (and even LLVM Bolt) in the upstream. Would be awesome if MongoDB will distribute PGO-optimized binaries, so the users will be able to see an additional performance boost "for free". At least describe to the use...

Guest over 3 years ago in Performance & Optimization 1 Submitted

1 VOTE

Normalize maximum time in MS parameter name, maxTimeMS vs max_time_ms

Currently, some operations such as aggregate() or count\_documents use maxTimeMS as parameter name, but others such as the find(), use max\_time\_ms, so unless you memorize which method uses which nomenclature, you have to check the docs every tim...

Guest over 3 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

CommandStartedEvent::getCommand() not instance of Explainable

I'm trying to build a verbose mode in our MongoDB wrapper library. I was able to implement debug output leveraging CommandSubscriber interface. This part works. However what I would also like to do is create support for automatic explaining of que...

Guest over 3 years ago in Drivers (ie: Node.js, Java, .NET) 1 Submitted

1 VOTE

Generic count property in _WriteResult class

Hi, I'm using a MongoDB as a backend for my API and often come to a case where i want to validate whether I updated, inserted or deleted any records. At the moment I use the deleted_count and machted_count properties in the DeleteResult and Updat...

Guest almost 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

Boost the performance of bioinformatic annotation queries

The documents to be selected look something like this: { "_id": { "$oid": "6272c580d4400d8cb10d5406" }, "#CHROM": 1, "POS": 286747, "ID": "rs369556846", "REF": "A", "ALT": "G", "QUAL": ".", "FILTER": ".", "INFO": [{ "RS": 369556846, ...

Guest almost 4 years ago in Performance & Optimization 0 Submitted

1 VOTE

Have the drivers tell us the cost of network connectivity within a query

Have the drivers tell us 1. total query execution time. 2. how much of total query execution time was network connectivity/latency and 3. how much time was the query on the cluster. This would then tell the developers the cost of network connect...

Guest about 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

Support mongos + ops manager agents as a container sidecar

No description provided

Guest about 4 years ago in Performance & Optimization 0 Submitted

1 VOTE

Make The client model serializable

I am working on a mongodb connector for the Apache Flink project - https://flink.apache.org/ Internally, Flink is using java serialization to save the records it is working on in a state which in turn used to recover from failures etc, as well as...

Guest about 4 years ago in Drivers (ie: Node.js, Java, .NET) 0 Submitted

1 VOTE

There is a specific collection that I need more performance than others. Is there a way to assign more ram/memory to a specific collection?

Guest over 4 years ago in Performance & Optimization 0 Submitted

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