[GitHub] [iotdb] zhanglingzhe0820 commented on pull request #2605: Add level merge to "merge" command

[GitBox <gi...@apache.org>]

zhanglingzhe0820 commented on pull request #2605:
URL: https://github.com/apache/iotdb/pull/2605#issuecomment-771387849


   > > However, the level compaction may merge the file which will be used in the unseq compaction process. The unseq compaction then cannot find the file to use. Then cause the ci problem.
   > 
   > Why it affects query?
   
   Every time this ci problem occurs, there will be a file not found error and it is all windows ci. Although the wrong test was not manually merged, I guessed that it was because the last test reported 'file not found' error affected this test
   So I speculate that it is caused by an unseq compaction problem.
   And Why it affects query?
   When compaction meets error, it may destroy the current tearDown() process and leave some file that not be deleted. The data of these remaining files conflicts with the data inserted in the next test, resulting in query errors


----------------------------------------------------------------
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.

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