Paolo Elefante created CASSGO-113:
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Summary: Add dedicated error types for Overloaded and
Bootstrapping errors
Key: CASSGO-113
URL: https://issues.apache.org/jira/browse/CASSGO-113
Project: Apache Cassandra Go driver
Issue Type: Improvement
Components: Core
Reporter: Paolo Elefante
h2. Problem
ErrCodeOverloaded (0x1001) and ErrCodeBootstrapping (0x1002) are currently
parsed as generic errorFrame instances.
This prevents applications from handling these error conditions in a
type-safe way, forcing them to rely on error message inspection or
error code matching.
h2. Use Case
Some applications and wrapper libraries need to distinguish these server
error conditions in a type-safe way, for example to implement custom
retry, backoff, observability, or request classification logic.
At the moment, ErrCodeOverloaded and ErrCodeBootstrapping are exposed as
generic errorFrame values, which makes them inconsistent with other
server errors that already have dedicated request error types.
h2. Proposal
Introduce dedicated error types:
- RequestErrOverloaded
- RequestErrBootstrapping
These should follow the same pattern as existing error types such as:
- RequestErrUnavailable
- RequestErrWriteTimeout
- RequestErrReadTimeout
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