jason810496 commented on PR #54445:
URL: https://github.com/apache/airflow/pull/54445#issuecomment-3191176765

   > The API should stream the log until the end, but there are still some 
errors with this process. I will work on a fix later. The root cause is that 
when the FileTaskHandler opens the file, it can only read content that has 
already been flushed to the file, and cannot access content that is still being 
written.
   
   Regardless of this error, the frontend should adapt to 
`application/nd-json`, which is the main change in this PR. The previous 
`application/json` format is very resource-intensive for the API server and may 
cause OOM issues when logs are large, even after the fix in 
https://github.com/apache/airflow/pull/49470. This is because JSON 
serialization requires the entire log content to be stored in a single large 
dictionary.


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