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  1. add view,index,user,role to mongodb Change Stream

    I tested the changeStream of mongodb. The changes of adding view, index, user and role to mongodb are not reflected in changeStream, but the corresponding log can be found in oplog. I have an issue on https://jira.mongodb.org/browse/SERVER-66460 and got it confirmed, but Chris Kelly thinks this should be a feature. Hopes to add this feature in future versions

    1 vote

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    1 comment  ·  Change Streams  ·  Flag idea as inappropriate…  ·  Admin →

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  2. Get metadata about source client connection that submitted a given change

    Currently with change streams it is impossible to know who or what connection initiated the changes.

    It would be a good feature to have to be able to receive some data about the source client connection that initiated a change.

    My particular use case is the following:

    I have an app that connects to Atlas. (source client connection)
    I can subscribe to change streams and then execute some logic when it applies.

    That app can scale to multiple instances.
    Each instance subscribes to the change streams.
    But I only want each instance to execute the logic that applies to only…

    2 votes

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  3. Change streams and Triggers for Time Series Collections

    Add Change streams and Trigger capabilities to Time Series Collections.
    Current Limitations don't allow this.
    https://docs.mongodb.com/manual/core/timeseries/timeseries-limitations/#change-streams

    1 vote

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  4. Old and New values in change tracking

    Change streams currently return only the new version of the documents.

    If there were an option that could be set on the collection for the change streams to also return the old version of the document, it would simplify any business logic that requires the old version.

    1 vote

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    started  ·  1 comment  ·  Change Streams  ·  Flag idea as inappropriate…  ·  Admin →

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  5. Ability to create the resume token based on oplog item

    CHoose an oplog event to set the resume token for, instead of needing to run the change stream for system to create a resume token

    Why: Concerns about many stream re-reading a full oplog if failure before finding first event

    1 vote

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  6. Low latency Change Stream for Global Cluster in Atlas

    our event-driven applications need to publish events to Kafka triggered by Change Stream feature. It works perfect in replicaset MongoDB cluster.

    However, after migrating to Global Cluster in Atlas, the Change Stream cannot keep low latency because of ordering reason among shards.
    The latency may go up to 20 seconds when for a single change event.

    It would be nice if application can receive Change Stream from the single shard only (not care about ordering among shards) to prevent latency.

    The idea is to pass "location" options when starting the Change Stream cursor.

    3 votes

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  7. Include schema validation events in changestream payload

    let's say my document has JSON schema validation like:

    {
      $jsonSchema: {
        properties: {
          phone: {
            bsonType: 'string'
          }
        }
      }
    }
    

    and the validation action is set to "warning", if I do a command like: db.test.insert({"phone":1}), I would like the warning message to be included in my change stream.

    2 votes

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