Comments (3)
Cloudant (and Couch) will generate an _id for you, a GUID, if one isn't provided. Is that sufficient, or does it need to be deterministic from the records data?
from cloudant-kafka-connector.
A completely unique ID is sufficient. The advantage of generating one is that the ID could give you some ordering details from the Kafka framework if that was important downstream ... which is why some other connectors take the approach of concatenating topic-name, partition, and offset (which for a given Kafka Cluster will be unique id for all messages that flow through the system).
from cloudant-kafka-connector.
The _id record handling can set in the configuration file connect-cloudant-sink.properties via the optional attribute guid.schema. The attribute can have following values:
guid.schema=kafka (default)
generate a new unique _id with the following schema:
<topic_name>_<partition>_<offset>_<sourceCloudantObjectId>
guid.schema=cloudant
using existing object id from the Cloudant source database
guid.schema=others
Cloudant generate a new _id
from cloudant-kafka-connector.
Related Issues (20)
- remove org.json
- Tidy up docs HOT 2
- Cap on batch size
- Split topics and partitions across multiple sink tasks
- Revisit source connector topic partition assignment HOT 2
- Refactor source partition offset map
- Configuration table of README should be generated from `ConfigDef`
- Source connector can't serialise numbers correctly
- ConnectRecordMapper#apply doesn't support nested lists HOT 1
- Include signature with published jar
- `cloudant.since` defaults to 0 which means the connector always starts from the beginning on restarts
- SourceChangesTask should use `longpoll`
- Docs updates
- Use parameterized logging where possible
- DocumentToSourceRecord: write key as a `Struct` to kafka
- Revisit build.gradle dependency declarations
- Upgrade tests to junit 5 (junit jupiter)
- Move to mockito
- Update kafka deps to 3.4.0
- Update cloudant-java-sdk to 0.4.3
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from cloudant-kafka-connector.