zenoyang opened a new pull request, #17828: URL: https://github.com/apache/doris/pull/17828
# Proposed changes Issue Number: close #xxx In some queries, there are thousands of batches in fragment 0, and there is only one row of data in each batch, so FE sends a fetch_data rpc request to fetch only one row of data at a time. Occasionally, rpc jitter is encountered, and an rpc request takes tens of milliseconds, so that the query that was originally returned in a few seconds becomes returned in tens of seconds. Therefore, some small batches are merged in Fragment 0 to reduce the number of rpc. ## Problem summary Describe your changes. ## Checklist(Required) * [ ] Does it affect the original behavior * [ ] Has unit tests been added * [ ] Has document been added or modified * [ ] Does it need to update dependencies * [x] Is this PR support rollback (If NO, please explain WHY) ## Further comments If this is a relatively large or complex change, kick off the discussion at [[email protected]](mailto:[email protected]) by explaining why you chose the solution you did and what alternatives you considered, etc... -- 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: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
