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[INLONG-12201][SDK] Update metrics when no available worker in Dataproxy Go SDK - #12208

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[INLONG-12201][SDK] Update metrics when no available worker in Dataproxy Go SDK#12208
yfsn666 wants to merge 1 commit into
apache:masterfrom
yfsn666:INLONG-12201

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@yfsn666

@yfsn666 yfsn666 commented Aug 28, 2026

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Fixes #12201

Motivation

In the Dataproxy Go SDK, messages rejected with ErrNoAvailableWorker in Send/SendAsync are not reflected in the message metrics, so these failures are invisible in monitoring.

Modifications

Added c.metrics.incMessage(workerBusy.getStrCode()) in both the Send and SendAsync paths when no available worker is found, so these rejections are counted alongside other message outcomes.

Verifying this change

(Please pick either of the following options)

  • This change is a trivial rework/code cleanup without any test coverage.

  • This change is already covered by existing tests, such as:
    (please describe tests)

  • This change added tests and can be verified as follows:

    (example:)

    • Added integration tests for end-to-end deployment with large payloads (10MB)
    • Extended integration test for recovery after broker failure

Documentation

  • Does this pull request introduce a new feature? no

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[Improve][SDK] Update message metrics when no available worker in the DataProxy Go SDK

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