[jira] [Created] (THRIFT-6209) Go: Provide standard Retry and Circuit Breaker client middlewares

["Sylwester Lachiewicz (Jira)" <ji...@apache.org>]

Sylwester Lachiewicz created THRIFT-6209:
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             Summary: Go: Provide standard Retry and Circuit Breaker client middlewares
                 Key: THRIFT-6209
                 URL: https://issues.apache.org/jira/browse/THRIFT-6209
             Project: Thrift
          Issue Type: Improvement
          Components: Go - Library
            Reporter: Sylwester Lachiewicz


THRIFT-5164 introduced the ClientMiddleware interface to lib/go/thrift, but the library currently does not provide standard, production-ready middleware implementations. Consequently, users must repeatedly implement custom retry loops, exponential backoff, and circuit breaker logic from scratch.

### Proposed Solution
Provide standard, opt-in client middlewares in lib/go/thrift:
1. Retry Middleware:
   - NewRetryMiddleware(maxAttempts int, backoff BackoffStrategy, retryable func(error) bool) ClientMiddleware.
   - Standard backoff strategies: ExponentialBackoff, LinearBackoff, and ConstantBackoff.
   - Context-aware cancellation checks between retry attempts.
2. Circuit Breaker Middleware / Adapter:
   - Provide a circuit breaker adapter interface and helper middleware to fail fast during downstream outages.



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