Database

$sort should allow 0 as argument meaning "no sort"

The $sort operator and aggregation stage should allow 0 (possibly also null) as an argument for the field sort order, meaning, "Don't sort." This allows a variable to be passed in that can conditionally skip the sort operation, in addition to the ...

Guest about 2 years ago in Querying & Aggregations 0 Submitted

1 VOTE

Easier way to troubleshoot storage use size discrepancy across nodes in the same replica set

While initial sync may potentially help on this topic, it would be great if the product has any easier way to identify the cause of significantly different storage use size (so to give a better confidence if initial sync is going to help).

Ka Lung Ng about 2 years ago in Storage & Transactions 0 Submitted

2 VOTE

Use dedicated interface for replication and balancing

Like many other big database system, MongoDB may support to specify dedicated interfaces for replication and/or for the balancer (sharding) Currently you can configure replication sets and shards members only by single hostname/IP-Address, i.e. *...

Wernfried Domscheit about 4 years ago in Replication & Sharding 0 Submitted

2 VOTE

Make it clear an index not on present on all shards

We recently had an issue where an index did not get created on all shards. When we ran getIndexes() on mongos it reported the index was present. So we dropped another redundant index thinking all would be well - it was not. We had serious performa...

Guest about 4 years ago in Data Modeling & Indexing 0 Submitted

1 VOTE

Feature to perform Machine Learning predictive analysis and classification in MongoDB

I want to bring the machine learning compute and predictive analysis into MongoDB atlas. Instead of ETL my data out of Atlas to achieve this, I will reduce my architectural complexity by having an aggregation operator that does this on my document...

Guest about 2 years ago in Querying & Aggregations 0 Submitted

1 VOTE

Parallelize unionWith

Today $unionWith aggregation command is executed sequentially. EG first we query collection A and then collection B and then the union occurs. The process should be parallelized so the query part will run in parallel while the union will be done a...

Guest about 2 years ago in Performance & Optimization 0 Submitted

1 VOTE

Scheduled stepdown for smoother primary election

Stepdown is a great tool that allows us to keep clusters operating smoothly. We use it for example when we want to perform some maintenance work on the host where the primary is currently running, to perform a rolling upgrade, and in many other ca...

Guest about 2 years ago in Replication & Sharding 0 Submitted

2 VOTE

CSFLE - Enable aggregation stages for non-encrypted collections

When encrypting any collection with CSFLE, aggregation is not allowed on non-encrypted collections. The official recommendation is to maintain 2 clients: 1 for CSFLE and 1 for when aggregation is needed. How is this an acceptable solution?

Guest over 4 years ago in Database 0 Submitted

1 VOTE

Write parts of database engine in ZIG

Zig is a zero-dependency, drop-in C/C++ compiler that supports cross-compilation out-of-the-box. Implementing some parts of MongoDB database engine core in ZIG might brings some performance improvements. https://ziglang.org/

Guest about 2 years ago in Database 0 Submitted

1 VOTE

Add Relaxed mode support for the $out operator

Add Relaxed mode support for the $out operator. *and include as option in the existing drivers

Guest about 2 years ago in Querying & Aggregations 0 Submitted

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