hubgeter opened a new pull request, #67437:
URL: https://github.com/apache/doris/pull/67437

   ### What problem does this PR solve?
   
   Issue Number: None
   
   Related PR: #66221, #66480
   
   Problem Summary: The branch-4.1 Arrow 24 backport inherited an 
Arrow/Paimon-specific semantic-fingerprint system, installed-artifact 
validators, focused recovery paths, and dedicated lifecycle CI. This diverged 
from the standard Doris thirdparty workflow and made dependency maintenance 
unnecessarily complex. Follow the existing model used by other dependency 
upgrades: keep source versions and checksums in vars.sh, use patch markers for 
source preparation, rely on matching prebuilts, and use the existing platform 
completion sentinel for full rebuilds. The branch-4.1 BE unit-test entrypoint 
still supports an older install-only build image, so retain only a lightweight 
libarrow_compute.a check that stages and installs the shared complete prebuilt 
when needed.
   
   ### Check List (For Author)
   
   - Test <!-- At least one of them must be included. -->
       - [ ] Regression test
       - [ ] Unit Test
       - [ ] 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 <!-- Add your reason?  -->
   
   - Behavior changed:
       - [ ] No.
       - [ ] Yes. <!-- Explain the behavior change -->
   
   - Does this need documentation?
       - [ ] No.
       - [ ] Yes. <!-- Add document PR link here. eg: 
https://github.com/apache/doris-website/pull/1214 -->
   
   ### Check List (For Reviewer who merge this PR)
   
   - [ ] Confirm the release note
   - [ ] Confirm test cases
   - [ ] Confirm document
   - [ ] Add branch pick label <!-- Add branch pick label that this PR should 
merge into -->
   
   


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