kaijianding opened a new pull request #10745:
URL: https://github.com/apache/druid/pull/10745
### Description
Currently, druid can only reset to earliest/latest offset, sometimes, users
want to read from a specified time like the start of today
A new optional param `timestamp` is added to api `POST
/druid/indexer/v1/supervisor/<supervisorId>/reset?timestamp=<timestamp in
millisencond>`
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Add `Map<PartitionIdType, SequenceOffsetType> getPositionFromTime(long
offsetTime);` to get offsets from time
Only kafka supports this feature
Add `OverrideNotice` to replace the whole DataSourceMetadata in metastore
and kill tasks to let tasks restart and read starting from the new
DatasourceMetadata(the same logic as ResetNotice)
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<hr>
This PR has:
- [x] been self-reviewed.
- [ ] using the [concurrency
checklist](https://github.com/apache/druid/blob/master/dev/code-review/concurrency.md)
(Remove this item if the PR doesn't have any relation to concurrency.)
- [x] added documentation for new or modified features or behaviors.
- [x] added Javadocs for most classes and all non-trivial methods. Linked
related entities via Javadoc links.
- [ ] added or updated version, license, or notice information in
[licenses.yaml](https://github.com/apache/druid/blob/master/licenses.yaml)
- [ ] added comments explaining the "why" and the intent of the code
wherever would not be obvious for an unfamiliar reader.
- [ ] added unit tests or modified existing tests to cover new code paths,
ensuring the threshold for [code
coverage](https://github.com/apache/druid/blob/master/dev/code-review/code-coverage.md)
is met.
- [ ] added integration tests.
- [x] been tested in a test Druid cluster.
<hr>
##### Key changed/added classes in this PR
* `KafkaRecordSupplier`
* `IndexerSQLMetadataStorageCoordinator`
* `SeekableStreamSupervisor.java`
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