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Ran 13 May 2025 12:33PM UTC

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Committed 13 May 2025 12:05PM UTC coverage: 90.507% (+0.3%) from 90.228%

Job # 14996590877.1

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push

github

Committed by

ariesdevil

Commit Message

Change: Add read_policy parameter to ensure_linearizable and get_read_log_id

This commit adds a `read_policy` parameter to the `ensure_linearizable` and `get_read_log_id` method, allowing users to explicitly specify whether to use `ReadIndex` or `LeaseRead` policy for linearizable reads.

This change enables fine-grained control over read consistency vs performance trade-offs on a per-request basis, rather than being limited to the global configuration.

- `ReadIndex` provides strongest consistency guarantees by confirming leadership with a quorum but incurs higher latency.

- `LeaseRead` uses leadership lease to avoid network round-trips for better performance but slightly weaker consistency guarantees.

Upgrade tip:

This is a breaking change. To update your code, you need to provide the `read_policy` parameter when calling `ensure_linearizable()` and `get_read_log_id()`.

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