(OraklNode) Check network condition and shutdown if necessary #2181
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WalkthroughWalkthroughThe changes introduce a new ping check mechanism to the application, allowing for the monitoring of endpoint reachability. A cancellable context is implemented to manage the ping operation, which is executed asynchronously after a delay. Additionally, a new Changes
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Actionable comments posted: 0
Review details
Configuration used: CodeRabbit UI
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Files ignored due to path filters (3)
go.work.sumis excluded by!**/*.sum,!**/*.sumnode/go.modis excluded by!**/*.modnode/go.sumis excluded by!**/*.sum,!**/*.sum
Files selected for processing (3)
- node/cmd/node/main.go (2 hunks)
- node/pkg/checker/ping/app.go (1 hunks)
- node/pkg/checker/ping/app_test.go (1 hunks)
Additional comments not posted (11)
node/cmd/node/main.go (3)
12-12: Import statement forpingpackage is correctly added.The import statement is necessary for the new functionality and is correctly placed.
23-24: Context creation and cancellation are correctly implemented.The use of
context.WithCancelis appropriate for managing the lifecycle of the ping operation. The deferred cancellation ensures resources are properly released.
26-30: Goroutine for ping operation is correctly implemented.The goroutine allows the ping operation to run asynchronously, which is suitable for non-blocking execution. The delay provides a buffer for application readiness.
However, consider verifying if the 5-second delay is optimal for your use case.
node/pkg/checker/ping/app_test.go (3)
30-53: Test caseTestApp_Start_SuccessfulPingis well-structured.The test verifies that a successful ping does not increment the fail count, and the use of a mock pinger allows for controlled testing of the ping logic.
55-75: Test caseTestApp_Start_FailedPingis well-structured.The test verifies that a failed ping increments the fail count, and the mock pinger simulates a ping failure effectively.
77-102: Test caseTestApp_Start_ShutdownOnAllFailuresis comprehensive.The test verifies that the application shuts down when all endpoints fail to ping, and it uses mock pingers to simulate failures effectively.
node/pkg/checker/ping/app.go (5)
12-24: Constants and global endpoints are well-defined.The constants provide clear configuration defaults, and the global endpoints are well-chosen for network stability checks.
26-40:PingerInterfaceand related types are well-structured.The interface and types provide a clear abstraction for ping operations and results.
42-66:AppConfigand option functions are well-implemented.The use of option functions is a common pattern for flexible configuration, and it is well-implemented here.
80-120:Newfunction and initialization logic are comprehensive.The initialization logic sets up pingers and result buffers correctly, ensuring the application is ready to run pings.
131-182:Startfunction and ping logic are effectively implemented.The function manages concurrency and context well, and the logic for handling fail counts and shutdowns is crucial for resilience.
However, consider verifying the shutdown logic to ensure it behaves as expected under all failure scenarios.
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while the current implemetation is a good start, I think we can make it more robust considering these points:
i think both of these suggestions require quite a bit of work so not sure if they are realistic to implement within our current deadline |
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Review details
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Files selected for processing (3)
- node/cmd/node/main.go (2 hunks)
- node/pkg/checker/ping/app.go (1 hunks)
- node/pkg/checker/ping/app_test.go (1 hunks)
Files skipped from review as they are similar to previous changes (3)
- node/cmd/node/main.go
- node/pkg/checker/ping/app.go
- node/pkg/checker/ping/app_test.go
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Description
Ping 3 major DNS which are expected to be stable enough
If all 3 DNS ping fails twice in a row, will shut down the application
Type of change
Please delete options that are not relevant.
Checklist before requesting a review
Deployment