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Exit the for-loop after 5 gRPC communication errors #218

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merged 4 commits into from
Sep 3, 2024

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shackra
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@shackra shackra commented Aug 23, 2024

Summary by CodeRabbit

  • New Features
    • Enhanced error handling for communication issues, improving the reliability of task processing.
    • Implemented a mechanism to control task processing termination based on specific error conditions, allowing for graceful exits.
  • Bug Fixes
    • Improved handling of specific gRPC error codes to ensure appropriate logging and error management.

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coderabbitai bot commented Aug 23, 2024

Walkthrough

The changes introduce a refined error handling mechanism in the run method of the connectorRunner struct. A new variable, stopForLoop, controls the termination of the task processing loop based on specific gRPC error messages. This adjustment allows for a more explicit exit strategy when encountering critical errors, enhancing the method's overall robustness and clarity in error management.

Changes

Files Change Summary
pkg/connectorrunner/runner.go Modified the run method to implement a new control flow for handling communication errors, including explicit loop termination based on specific error messages.

Sequence Diagram(s)

sequenceDiagram
    participant Client
    participant ConnectorRunner
    participant gRPCServer

    Client->>ConnectorRunner: Call run(ctx)
    ConnectorRunner->>gRPCServer: Process task
    alt Communication Error
        gRPCServer-->>ConnectorRunner: Return error (e.g., "grpc: the client connection is closing")
        ConnectorRunner->>ConnectorRunner: Set stopForLoop to true
    else No Error
        gRPCServer-->>ConnectorRunner: Return success
        ConnectorRunner->>ConnectorRunner: Continue processing
    end
    ConnectorRunner->>Client: Return result or error message
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🐰 In the meadow, I hop with glee,
New logic blooms, as bright as can be!
Errors tracked, oh what a sight,
Communication flows, everything's right!
With each task processed, we leap and cheer,
A robust runner, we hold dear! 🌼


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pkg/connectorrunner/runner.go Outdated Show resolved Hide resolved
pkg/connectorrunner/runner.go Outdated Show resolved Hide resolved
@shackra shackra requested a review from ggreer August 24, 2024 00:17
@shackra shackra marked this pull request as ready for review August 26, 2024 16:29
@shackra shackra requested a review from jirwin as a code owner August 26, 2024 16:29
@shackra
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shackra commented Aug 26, 2024

testing is needed, I'll report back when I have something that greenlight this PR for merging.

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Actionable comments posted: 1

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 0760b29 and 2d66da3.

Files selected for processing (1)
  • pkg/connectorrunner/runner.go (3 hunks)
Additional comments not posted (3)
pkg/connectorrunner/runner.go (3)

17-18: LGTM!

The new imports for handling gRPC error codes and statuses are appropriate.

The code changes are approved.


200-205: LGTM!

The switch statement correctly handles specific gRPC error codes. Incrementing commErrCount for codes.Canceled is appropriate. Logging other error codes is a good practice.

The code changes are approved.


208-219: LGTM!

Resetting commErrCount after processing each task allows for recovery from transient errors. Terminating the loop if commErrCount reaches 5 is a reasonable threshold. Returning an error message if commErrCount is greater than zero after the loop provides clear feedback.

The code changes are approved.

pkg/connectorrunner/runner.go Outdated Show resolved Hide resolved
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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 2d66da3 and 02a98f4.

Files selected for processing (1)
  • pkg/connectorrunner/runner.go (3 hunks)
Additional comments not posted (4)
pkg/connectorrunner/runner.go (4)

10-10: LGTM!

The import of the strings package is appropriate for string operations.

The code changes are approved.


132-132: LGTM!

The introduction of stopForLoop is logical for controlling the loop termination based on specific conditions.

The code changes are approved.


199-201: LGTM!

The check for the specific gRPC error and setting stopForLoop to true enhances error handling by allowing the loop to exit gracefully.

The code changes are approved.


211-214: LGTM!

Returning a formatted error message when stopForLoop is true improves the robustness of the run method by providing clearer error handling and control flow.

The code changes are approved.

@shackra shackra marked this pull request as draft August 28, 2024 21:53
@shackra shackra marked this pull request as ready for review August 29, 2024 17:02
@ggreer ggreer merged commit 4a45c87 into main Sep 3, 2024
3 of 4 checks passed
@ggreer ggreer deleted the shackra/misbehaving-child-process branch September 3, 2024 16:25
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2 participants