Feature/develop - #22
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Signed-off-by: Cloorc <wittcnezh@foxmail.com>
Signed-off-by: Cloorc <wittcnezh@foxmail.com>
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Pull Request Overview
This PR adds comprehensive concurrency testing and implements a new EventTypeRebuild for state synchronization. It also removes Kafka-related functionality that was previously included in the codebase.
- Adds extensive race condition and atomicity tests to verify concurrent operation safety
- Introduces EventTypeRebuild event type and rebuild functionality in the Redis CAS broker
- Removes Kafka broker implementation and related dependencies
Reviewed Changes
Copilot reviewed 25 out of 28 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| types.go | Adds EventTypeRebuild constant for full state rebuild events |
| simple_race_test.go | New concurrency test for basic race condition detection |
| simple_atomic_test.go | New test for atomic update behavior verification |
| redis_cas_broker.go | Implements rebuild event handling by converting all events to rebuild type |
| race_condition_test.go | Comprehensive race condition testing with metadata consistency checks |
| public_api_test.go | Tests public API methods (UpdateRule/GetRule) with immutability verification |
| persistence_coverage_test.go | Removes unused event processing test function |
| matcher.go | Adds public UpdateRule/GetRule methods and atomic update implementation |
| kafka_broker.go | Complete removal of Kafka broker implementation |
| high_concurrency_test.go | High-intensity concurrency test with 20+ workers |
| go.mod | Removes Kafka and testing dependencies |
| forest.go | Adds ReplaceRule method for atomic rule replacement |
| example files | Removes Kafka-related demo applications |
| event_integration_test.go | Removes in-memory broker test coverage |
| docs/ | Adds documentation for race condition fixes and concurrency verification |
| consistency_guarantees_test.go | Tests consistency guarantees under concurrent operations |
| concurrency_test.go | Core concurrency testing for partial rule prevention |
| brokers_test.go | Removes Kafka and in-memory broker tests |
| basic_update_test.go | Basic rule update functionality test |
| atomic_update_test.go | Tests atomic update fix implementation |
| api_test.go | Enhanced API testing with comprehensive update scenarios |
| api.go | Adds UpdateRuleStatus, UpdateRuleMetadata, and GetRule public methods |
Comments suppressed due to low confidence (2)
matcher.go:1
- [nitpick] The comment describes the write lock strategy but doesn't explain the specific atomic update sequence implemented below. Consider expanding the comment to describe the step-by-step approach (remove from forest, update rules map, add to forest) for better maintainability.
package matcher
matcher.go:1
- This code converts an integer to a rune and then to string, which will produce unexpected results for values >= 10. For j=10, j%10=0 gives rune(48)='0', but for j=11, j%10=1 gives rune(49)='1', etc. This only works correctly for single digits. Consider using strconv.Itoa(j%10) instead.
package matcher
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| // checkForNewEvents checks for new events since last known timestamp | ||
| // For simplicity, all events are treated as rebuild events |
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The comment suggests this is a temporary simplification, but the implementation permanently converts all events to rebuild events. Consider updating the comment to reflect this is the intended behavior or document when this simplification will be addressed.
| // For simplicity, all events are treated as rebuild events | |
| // All events are permanently treated as rebuild events as a design decision. | |
| // If event type differentiation is required in the future, update this logic accordingly. |
| rf.RuleIndex[newRule.ID] = ruleNodes | ||
| } | ||
| } | ||
| } // cleanupEmptyNodes removes empty nodes from the forest |
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The closing brace and comment are on the same line as the function declaration. This formatting is inconsistent and makes the code harder to read. The comment should be moved above the function declaration or removed if the function name is self-explanatory.
| } // cleanupEmptyNodes removes empty nodes from the forest | |
| } | |
| // cleanupEmptyNodes removes empty nodes from the forest |
| // ATOMIC CONSISTENCY: Double-check approach to prevent race conditions | ||
| // For each candidate from forest, verify it actually matches the query dimensions | ||
| // AND exists in m.rules AND its dimensions in m.rules still match the query | ||
| for _, candidate := range candidates { |
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[nitpick] The double-check approach performs multiple validations for each candidate rule, including dimension equality checks. For high-throughput scenarios, consider optimizing by adding version stamps or checksums to rules to quickly detect stale forest entries without full dimension comparison.
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