feat: remove unsafe filed updater #1177
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WalkthroughThe pull request involves removing three Changes
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Actionable comments posted: 1
🧹 Nitpick comments (3)
jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/Updaters.java (3)
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22-24: Update class documentation to reflect removal of unsafe implementations.The class comment "Sometime instead of reflection, better performance" is no longer accurate since the class now exclusively uses reflection-based updaters.
- * Sometime instead of reflection, better performance. + * Field updater utility class using Java Reflection.
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49-53: Consider more specific error handling.The generic
RuntimeExceptionwrapping might hide important setup failures. Consider using a more specific exception type that better indicates the nature of field updater creation failures.- throw new RuntimeException(t); + throw new IllegalStateException("Failed to create field updater for " + fieldName, t);
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26-68: Consider documenting migration impact and rationale.The removal of unsafe field updaters represents a significant architectural change. Consider:
- Documenting the rationale for removing unsafe operations
- Adding migration notes for any performance-sensitive code that might be affected
- Updating relevant documentation to reflect this architectural change
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📒 Files selected for processing (4)
jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeIntegerFieldUpdater.java(0 hunks)jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeLongFieldUpdater.java(0 hunks)jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeReferenceFieldUpdater.java(0 hunks)jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/Updaters.java(3 hunks)
💤 Files with no reviewable changes (3)
- jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeLongFieldUpdater.java
- jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeReferenceFieldUpdater.java
- jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/UnsafeIntegerFieldUpdater.java
⏰ Context from checks skipped due to timeout of 90000ms (6)
- GitHub Check: test_storage_java_impl
- GitHub Check: test_jraft_core
- GitHub Check: test_rpc_grpc_impl
- GitHub Check: test_rheakv_pd
- GitHub Check: test_rheakv_core
- GitHub Check: sca
🔇 Additional comments (1)
jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/Updaters.java (1)
35-35: Verify performance impact of switching to reflection-based updaters.The change from potentially using unsafe operations to always using reflection might impact performance in critical code paths. Consider benchmarking the changes in performance-sensitive scenarios.
Run the following script to identify potential performance-critical usages:
✅ Verification successful
Performance impact is negligible
The only usage of the reflection-based updater is in
ThrowUtilfor exception handling, which is not in any performance-critical path. All other concurrent operations in the codebase use direct Java atomic updaters.🏁 Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Search for performance-sensitive contexts where Updaters are used rg -B 3 -A 3 "newIntegerFieldUpdater|newLongFieldUpdater|newReferenceFieldUpdater" | grep -i -E "performance|critical|hot|benchmark"Length of output: 134
Script:
#!/bin/bash # Find all usages of Updaters class echo "=== Updaters usage ===" rg -A 5 "Updaters\." echo -e "\n=== Updater field declarations ===" # Find field declarations that use atomic updaters rg "@Volatile|AtomicIntegerFieldUpdater|AtomicLongFieldUpdater|AtomicReferenceFieldUpdater" echo -e "\n=== Implementation comparison ===" # Check the actual implementations ast-grep --pattern 'class ReflectionIntegerFieldUpdater { $$$ }'Length of output: 7103
jraft-core/src/main/java/com/alipay/sofa/jraft/util/internal/Updaters.java
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Motivation:
As the title said.
Result:
Part of #1175
If there is no issue then describe the changes introduced by this PR.
Summary by CodeRabbit
Refactor
UnsafeIntegerFieldUpdater,UnsafeLongFieldUpdater, andUnsafeReferenceFieldUpdaterclassesUpdatersclass to exclusively use reflection-based field updatersImpact