Introduce admission rate limiter to mongos ingress path

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    • Type: New Feature
    • Resolution: Fixed
    • Priority: Major - P3
    • 8.2.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Workload Scheduling
    • Fully Compatible
    • Workload Scheduling 2025-05-26, Workload Scheduling 2025-06-09, Workload Scheduling 2025-06-23
    • None
    • 3
    • TBD
    • None
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      Introduce the RateLimiter added in SERVER-104408 to the ingress command path of mongos. Add new server paramters for controlling the admission rate, burst size, and maximum queue depth. Expose relevant metrics in serverStatus and FTDC.

      This should not affect the throughput of the existing high-value workloads, though some degree of latency regression is acceptable, particularly at the P90+ level.

            Assignee:
            Guillaume Racicot
            Reporter:
            Patrick Freed
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              Created:
              Updated:
              Resolved: