Apache Druid

Probably the old supervisor entires are left behind in the druid_dataSource table.
We can stop/suspend the supervisor and perform a hard reset on it. Post that we can start the supervisor back. This should help to clear the old entries and start the new supervisor with kafka
Also, do check `useEarliestOffset` in the spec to make sure its correct. If you have not ingested anything till from Kafka, then setting to true will start ingesting from the earliest

If you migrated from kinesis to kafka you'll need to do a "reset" of the supervisor in order to clear out all the kinesis-related metadata

(Same is required if you switch kafka topics, btw.)

you can do it by UI (I think it's called "reset" or "hard reset"), or by API

Thanks <@U030LNJJ13M> <@U0344FW86DD>. I tried reset and issued kafka ingestion supervisor POST call. It worked.