learner1212 opened a new issue, #18535:
URL: https://github.com/apache/doris/issues/18535

   ### Search before asking
   
   - [X] I had searched in the 
[issues](https://github.com/apache/doris/issues?q=is%3Aissue) and found no 
similar issues.
   
   
   ### Description
   
     routine load now not support modify columns, so when my table schema 
changed, we must stop current routine load job and submit a new one. but doris 
will reset offset to lastest or earilest by property.kafka_default_offsets 
setting, that may cause data repeat or data lost. the only way we avoid this 
problem is appoint kafka_partitions and kafka_offsets settings, and this also 
bring new problems:
   1. the configuration is difficult when we have a large number of partitions;
   2. when we increase partiton in topic, we will loss data in the new 
partitions.
   
   in summary, we need to consume kafka topic with a exist consumer group an do 
not reset the offset.
   
   ### Use case
   
   _No response_
   
   ### Related issues
   
   _No response_
   
   ### Are you willing to submit PR?
   
   - [ ] Yes I am willing to submit a PR!
   
   ### Code of Conduct
   
   - [X] I agree to follow this project's [Code of 
Conduct](https://www.apache.org/foundation/policies/conduct)
   


-- 
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.

To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org.apache.org

For queries about this service, please contact Infrastructure at:
us...@infra.apache.org


---------------------------------------------------------------------
To unsubscribe, e-mail: commits-unsubscr...@doris.apache.org
For additional commands, e-mail: commits-h...@doris.apache.org

Reply via email to