shuke987 opened a new pull request, #60926:
URL: https://github.com/apache/doris/pull/60926

   ### What problem does this PR solve?
   ## Summary
   
     This PR fixes a metadata-retention issue in FE when an OLAP table is 
erased (drop/recycle path).
   
     Env.onEraseOlapTable(...) now proactively removes alter jobs for the 
erased table from:
   
     - MaterializedViewHandler.alterJobsV2
     - SchemaChangeHandler.alterJobsV2
   
     ## Problem
   
     After a table is dropped/erased, alter-job entries for that table may 
remain in handler job maps until periodic
     expiration cleanup.
     Those stale entries can keep table-related metadata reachable longer than 
necessary and contribute to FE memory growth in
     drop-table-heavy workloads.
   
     ## Fix
   
     During table erase, clean alter jobs by tableId immediately:
   
     - remove MV alter jobs whose job.getTableId() == erasedTableId
     - remove schema-change alter jobs whose job.getTableId() == erasedTableId
   
     This aligns job lifecycle with table lifecycle and avoids unnecessary 
retention.
   
     ## Test
   
     Added unit test in EnvTest to verify:
   
     - jobs targeting the erased table are removed from both handlers
     - jobs targeting other tables remain intact
     - existing erase flow (eraseTableDropBackendReplicas, colocate cleanup) is 
still invoked
   
     ## Impact
   
     - No behavior change for normal alter execution paths
     - Improves FE memory hygiene and metadata cleanup correctness after table 
erase
   
   Issue Number: close #xxx
   
   Related PR: #xxx
   
   Problem Summary:
   
   ### Release note
   
   None
   
   ### 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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