vburenin opened a new pull request #2598:
URL: https://github.com/apache/hudi/pull/2598
## What is the purpose of the pull request
This PR adds ability to:
- Inject kafka meta information into the received data from avro kafka
source, so users can track which kafka topic, partition, offset and the key
delivered a specific record (super useful for debugging consistency issues). In
SQL query user would need to specify <KAFKA_FIELDS> and enable appropriate
options to enable the injection.
- specify custom kafka avro data decoder that takes into account source
latest schema and different schema versions.
- cache retrieved source and target latest schemas
- return null for the target schema if it is not in use by specifying
"null" as a target schema url. (I know, there is NullTargetSchemaProvider,
however it looks redundant).
PS. This PR is might be split into multiple different PRs, but it comes as
one since development of all these features has been done simultaneously due to
the mutual dependency. Unit tests will be added later when we are in agreement
with this approach.
## Brief change log
*(for example:)*
- *Modify AnnotationLocation checkstyle rule in checkstyle.xml*
## Verify this pull request
*(Please pick either of the following options)*
This pull request is a trivial rework / code cleanup without any test
coverage.
*(or)*
This pull request is already covered by existing tests, such as *(please
describe tests)*.
(or)
This change added tests and can be verified as follows:
*(example:)*
- *Added integration tests for end-to-end.*
- *Added HoodieClientWriteTest to verify the change.*
- *Manually verified the change by running a job locally.*
## Committer checklist
- [ ] Has a corresponding JIRA in PR title & commit
- [ ] Commit message is descriptive of the change
- [ ] CI is green
- [ ] Necessary doc changes done or have another open PR
- [ ] For large changes, please consider breaking it into sub-tasks under
an umbrella JIRA.
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