jqcc opened a new pull request, #41914:
URL: https://github.com/apache/doris/pull/41914

   ## Proposed changes
   
   Doris's stream load limits the amount of data that can be imported at one 
time. If the amount of data exceeds the limit, it will fail. If you want to 
increase the limit, you need to manually adjust the BE 
parameters(`streaming_load_max_mb`).
   
   This adjustment adds a check rule for the amount of data during import. If 
the amount of imported data is set in the HTTP header, the size limit specified 
in HTTP can be dynamically loaded, avoiding the need to uniformly adjust the 
limit of the BE layer.
   
   just like:
   
   ``` bash
   curl --location-trusted -u <doris_user>:<doris_password> \
       -H "data_size_limit:10240"
       -H "column_separator:," \
       -H "columns:user_id,name,age" \
       -T streamload_example.csv \
       -XPUT 
http://<fe_ip>:<fe_http_port>/api/testdb/test_streamload/_stream_load
   ```
   
   <!--Describe your changes.-->
   
   


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