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release-24.1: spanlatch: add cluster setting for slow latch request threshold #160037

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release-24.1: spanlatch: add cluster setting for slow latch request threshold #160037

spanlatch: add cluster setting for slow latch request threshold
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blathers[crl] / Backport Policy Check succeeded Dec 22, 2025 in 0s

Backport policy check passed

This PR complies with the backport policy and is eligible for backporting.

Details

✅ PR #160037 is compliant with backport policy

Confidence: high
Critical bug criteria met: [An inability to detect and debug production issues]
Feature flag detected: Yes
Backward compatible: true
Explanation: The pull request adds a new cluster setting that controls the behavior of logging slow latch acquisitions which is a form of feature gating. The setting is kv.concurrency.slow_latch_request_duration and is used to configure the threshold for this feature, thus satisfying the feature flag requirement and is critical for debugging purposes as stated in the release justification. The change does not involve any removal of version gates or introduce any backward compatibility issues.

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