morrySnow opened a new pull request, #68083:
URL: https://github.com/apache/doris/pull/68083

   ### What problem does this PR solve?
   
   Issue Number: None
   
   Related PR: None
   
   Problem Summary:
   
   The built-in audit loader currently sends every Stream Load batch as 
uncompressed text. This PR gzip-compresses the request body and adds the 
`compress_type: gz` Stream Load header, reducing network traffic for audit 
batches. The optional external audit loader plugin is unchanged.
   
   ### Release note
   
   Enable gzip compression for built-in audit log Stream Load requests.
   
   ### Check List (For Author)
   
   - Test
       - [ ] Regression test
       - [x] Unit Test
       - [x] Manual test (add detailed scripts or steps below)
       - [ ] No need to test or manual test. Explain why:
           - [ ] This is a refactor/code format and no logic has been changed.
           - [ ] Previous test can cover this change.
           - [ ] No code files have been changed.
           - [ ] Other reason
   
     Unit test:
   
     ```text
     ./run-fe-ut.sh --run org.apache.doris.plugin.audit.AuditStreamLoaderTest
     Tests run: 2, Failures: 0, Errors: 0, Skipped: 0
     BUILD SUCCESS
     ```
   
     Build and manual verification:
   
     - Built FE successfully with `DISABLE_BUILD_UI=ON ./build.sh --fe`.
     - Deployed and restarted FE with the built-in audit loader enabled.
     - Verified BE received `compress_type: gz` and successfully loaded an 
audit batch with 791 compressed bytes and 5056 decompressed bytes.
     - Verified a marker query was written to `__internal_schema.audit_log`.
   
   - Behavior changed:
       - [ ] No.
       - [x] Yes. Built-in audit log Stream Load request bodies are now 
gzip-compressed.
   
   - Does this need documentation?
       - [x] No.
       - [ ] Yes.
   
   ### Check List (For Reviewer who merge this PR)
   
   - [ ] Confirm the release note
   - [ ] Confirm test cases
   - [ ] Confirm document
   - [ ] Add branch pick label
   


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