improve: raft state machine should report error

[zyxxoo]

Purpose of the PR

• close #xxx

Main Changes

Verifying these changes

• Trivial rework / code cleanup without any test coverage. (No Need)
• Already covered by existing tests, such as (please modify tests here).
• Need tests and can be verified as follows:
  • xxx

Does this PR potentially affect the following parts?

• Dependencies (add/update license info & regenerate_known_dependencies.sh)
• Modify configurations
• The public API
• Other affects (typed here)
• Nope

Documentation Status

• Doc - TODO
• Doc - Done
• Doc - No Need

[codecov]

Codecov Report

❌ Patch coverage is 0% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 40.92%. Comparing base (0946d5d) to head (f007f1e).
⚠️ Report is 9 commits behind head on master.

Files with missing lines	Patch %	Lines
...ache/hugegraph/store/raft/HgStoreStateMachine.java	0.00%	1 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##             master    #2871      +/-   ##
============================================
+ Coverage     40.91%   40.92%   +0.01%     
  Complexity      333      333              
============================================
  Files           747      747              
  Lines         60168    60169       +1     
  Branches       7683     7683              
============================================
+ Hits          24615    24623       +8     
+ Misses        32975    32968       -7     
  Partials       2578     2578              

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[Copilot]

Pull Request Overview

This PR improves error handling in Raft state machines by ensuring that errors are properly reported to the iterator when exceptions occur during state machine operations.

• Adds error reporting via setErrorAndRollback() when exceptions are caught during state machine operations
• Implements consistent error handling across both store and PD components

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
HgStoreStateMachine.java	Adds error reporting call when exceptions occur during state machine operations
RaftStateMachine.java	Adds error reporting call when exceptions occur during state machine operations

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[Copilot]

[nitpick] The hardcoded rollback count '1' should be extracted as a named constant to improve code readability and maintainability. Consider defining a constant like 'ROLLBACK_COUNT = 1' to make the intent clearer.

[github-actions]

Due to the lack of activity, the current pr is marked as stale and will be closed after 180 days, any update will remove the stale label