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313 results found

  1. Support concise correlated queries for $graphLookUp

    Similar to $lookUp, support concise correlated queries for $graphLookUp.

    It would allow adding a $project stage to reduce overhead.

    1 vote
    0 comments  ·  Query and Aggregation Pipeline  ·  Admin →
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  2. Capture pre-images for ONLY specified change events

    Currently, pre-images are captured for all updates, replacements and deletes on a given collection.

    Ask: Enable capture of pre-images for ['DELETED', ...] documents only.

    Context: A customer uses a collection for ingestion, where 16-20M documents are ingested every 20 minutes. Documents are indexed with Elastic Search upon insertion, and are removed from Elastic Search upon deletion. However, the ingestion process requires subsequent operations: an average of 30 updates are made on each document, and the customer doesn't want to pay the penalty of generating pre- and post-images on updates.

    Impact: Updating a collection of 80GB (20M docs of 4kb each) 30…

    1 vote
    2 comments  ·  Change Streams  ·  Admin →
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  3. MongoDB Audit Log Missing Failed and Successful Command Execution Flag

    When you initially create a database account…..this action will be logged in the database audit logs as configured, however when you try to re-attempt to create the account again….a normal error message will be displayed as shown below:

    db.createUser( {user: "test111_3",pwd: "emad123",roles: [ { role: "readWrite", db: "admin" } ]})

    When examining the audit logs the two entries are identical in results which shouldn’t be the case….I think the flag “result” when command executed failed should have a different value to distinguish successfully executed commands from failed executed commands:

    { "atype" : "createUser", "ts" : { "$date" : "2024-08-30T13:04:59.535+03:00" },…

    1 vote
    0 comments  ·  Security  ·  Admin →
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  4. upgrade src/third_party/gperftools ≥ 2.10

    gperftools new version support new architecture

    1 vote
    0 comments  ·  Other  ·  Admin →
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  5. Making operations that hang indefinitely more visible

    Hi Team,

    It would be useful for some kind of timeout message to be implemented if an operation is waiting on commitQuorum - say wait an hour and then return an error message with "Can't perform operation, required number of commitQuorum members not available to process this operation" or something similar. I don't think a command should hang indefinitely, and it can also help both customers and support for the analysis of this kind of issues.

    Thanks in advance

    3 votes
    1 comment  ·  System Observability  ·  Admin →
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  6. Support hex conversion and binary operators in aggregation framework

    The aggregation framework lacks function for HEX <-> Number conversion and binary operations. Such functions are common in almost every programming language.

    Typically and most required operations would be:

    • convert Int/Long to Hex
    • convert Hex to Int/Long
    • Create BinData from Hex string
    • Get Hex string of BinData
    • Binary AND
    • Binary OR
    • Binary XOR
    • Binary NOT (i.e. complement)

    Some of these functions are available in mongo shell or in Bitwise Query Operators but they do not exist in aggregation framework.

    For details see https://jira.mongodb.org/browse/SERVER-55386

    This request becomes more urgent, because starting in MongoDB 8.0, server-side JavaScript functions ($accumulator, $function, $where) are…

    1 vote
    0 comments  ·  Other  ·  Admin →
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  7. $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 present specification, in which a variable can only choose ascending or descending sort.

    1 vote
    0 comments  ·  Query and Aggregation Pipeline  ·  Admin →
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  8. connection

    Hi,
    it will be greatly appreciated to have an option to control the connections number when choosing an instance.
    M30 is just what we need except for the connections number
    we have around ~2.5k and max is 3k it would help a lot to have an option to increase just the connections number, so we wont need to move to M40

    3 votes
    0 comments  ·  Other  ·  Admin →
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  9. log redaction customization

    If we have customizations on the log redaction feature then we can add our preference where we have to apply log redaction. As of now according to my opinion it is getting applied on the all log fields which may create a issue while troubleshooting the any issue.

    2 votes
    0 comments  ·  Security  ·  Admin →
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  10. 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).

    1 vote
    0 comments  ·  Storage (Wired Tiger)  ·  Admin →
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  11. 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 documents stored in Atlas.

    1 vote
    0 comments  ·  Query and Aggregation Pipeline  ·  Admin →
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  12. 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 as best effort tree merge try to speed up the overall Elapsed Time of the query

    1 vote
    0 comments  ·  Performance  ·  Admin →
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  13. 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 cases we need to switch the primary to another node.

    While usually electing a new primary is fast enough, for clusters with very high write traffic, it sometimes unfortunately leads to write errors on the application side. The reason is that drivers need to disconnect from the previous primary and connect to the new one, and…

    1 vote
    0 comments  ·  Replication  ·  Admin →
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  14. Named MongoDB Connections

    When a service is acting erroneously and generating hundreds or thousands of connections, it's currently difficult to determine which service is doing so when you have 30+ services connecting to MongoDB.

    My proposal is that we should be optionally able to specify a non-unique name for the connection in the MongoDB URL (possibly after a #), which would allow DB administrators to see how many of each named connection was connected at any given time, and also other metrics (operations/s per name, average/max query execution time per name, etc.).

    Example URL:
    mongodb://user:****@clustername.abcd.mongodb.net:27017/dbName?authSource=admin#myServiceName

    2 votes
    1 comment  ·  System Observability  ·  Admin →
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  15. Add Relaxed mode support for the $out operator

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

    1 vote
    0 comments  ·  Query and Aggregation Pipeline  ·  Admin →
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  16. 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/

    1 vote
    0 comments  ·  Other  ·  Admin →
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  17. Aggregations should allow an empty sort stage instead of returning an error

    When you run an aggregation pipeline that contains an empty sort stage (like {"$sort": {}}) MongoDB returns the error message "$sort stage must have at least one sort key". It would be really helpful if such a stage would work and simply not apply any sorting at all.

    For one this would be more consistent with a find operation (e.g. db.runCommand({"find": "test", "sort": {}}) or db.test.find({}, {}, {"sort": {}})) which does not return an error but simply does not sort the results. More importantly it would also make it easier for developers and frameworks to dynamically generate the…

    1 vote
    0 comments  ·  Query and Aggregation Pipeline  ·  Admin →
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  18. Support for Ubuntu 24.04 for Mongodb-org version 6.0 7.0 8.0

    4 votes
    1 comment  ·  Other  ·  Admin →
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  19. Providing connection details with username for real time connection monitoring.

    Currently, mongd.log provides connection details like remote IP, source port with authentication information but doesn't provide the connection is in active state or not.
    serverStatus() only provides number of current and active connections.

    Example:

    10.0.0.100:12345 - username active
    10.0.0.101:12346 - username idle

    2 votes
    1 comment  ·  Other  ·  Admin →
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  20. Query comment or metadata in change stream event

    Our application is using change stream events to publish changes as kafka events for our customers. Sometimes we are in need to decide if an event should be send by kafka or not. Right at the moment the only way would be to decide based on additional fields on our document.

    It would be nice if there is an opportunity to include query comments to change stream events or some kind of meta data to get some info about the origin of the operation. This would be useful, to decide without any need to add additional fields to our data…

    2 votes
    0 comments  ·  Change Streams  ·  Admin →
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