Connectors (BI, Kafka, Spark)
8 results found
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Ignore heartbeats-mongodb topic by default
As per KAFKA-208, SMTs can't be applied to the heartbeats-mongodb topic. Users should not have to configure each connector to ignore this topic. Please either ignore this topic by default or provide a command-line switch so it can be ignored.
4 votes -
Kafka source connector once only semantics
Added as a suppport case here : https://support.mongodb.com/case/00634630
When using the connector as a Source, i.e we capture change streams from the Source Mongo DB and stream that to a Kafka endpoint.
Imagine these are updates on financial transactions in mongodb and they are NOT tolerant to
1) missed data and
2) duplicated data
in that order.So, we need to make sure that the Change Streams that we are observing(matching) on, are delivered once and exactly once to the Kafka pipeline. (Blog on the same : https://www.confluent.io/blog/exactly-once-semantics-are-possible-heres-how-apache-kafka-does-it/). If exactly-once semantics are enabled, it makes commits transactional by default.
…
4 votes -
Get schema validation "feedback" in Kafka Mongo Sink Connector
Objective :
We want to be able to validate that data matches some requirements. We would like to to perform this data validation by adding a JSON schema in Mongo (such as it is described here : https://docs.mongodb.com/manual/core/schema-validation/).
Problem is that current implementation of the current Mongo DB Kafka Sink connector does not implement the required elements to benefit from features brought by this KIP : https://cwiki.apache.org/confluence/display/KAFKA/KIP-610%3A+Error+Reporting+in+Sink+Connectors
So if we define such a validation on Mongo, if a message has a value that does not match the definition, it would not go in the dead letter queue, and the…
3 votes -
MongoDB Sink Connector CDC default handler
I would like to have a default CDC handler that can process data produced from MongoDB Source Connector without Debezium https://docs.mongodb.com/kafka-connector/master/kafka-sink-cdc#cdc-handler-configuration
3 votes -
Kafka connector to support Kafka Schema Registry
One of the issues that our team has been talking about is when getting data from MongoDB, via a Kafka connector, and sending it through to Kafka we try to enforce schemas in Kafka but that schema is not enforced on the MongoDB data. This leads to developers needing to make sure they let the Data Engineering team know when their schema evolves so we can accommodate that change in the Avro schema. Our thought is to potentially have the developers use the Confluent Schema Registry to serialize their data to Avro prior to writing it to MongoDB. This would…
2 votes -
Change stream total ordering within a transaction
Right now, change stream will flatten out a transaction into individual operations, i.e., if we do two operations within a transaction, change stream will generate two events.
However there is no total ordering of the events that happens within the transaction. This is important if we do two updates on the same object within a transaction, since both operations share the same optime (clusterTime), there is no way to provide the ordering between these two events.
It would be helpful if we can provide an ordering number on every events from the same transaction for this purpose.
1 vote -
built-in CDC to Kafka
Hi,
it is still hard to set up a MongoDB oplog CDC connection to Kafka to publish changes from e.g. a microservice-local MongoDB. You typically have to use Kafka Connect and either the official MongoDB Atlas Connector, or the Debezium Open Source Connector.
One of the databases competing with MongoDB, CockroachDB, has a built-in feature to publish "change feeds" to Kafka (see https://www.cockroachlabs.com/docs/stable/stream-data-out-of-cockroachdb-using-changefeeds.html).
I'd love to see a similar feature for MongoDB, since this would allow us to keep MongoDB and Kafka in sync much easier and more conveniently - without having to care about yet another (probably centralized)…
1 vote -
Dropbox
Lead with the drop that will very allow. Permit to be inside and all the time useful !!
stay tuned.1 vote
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