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Carles GarciaandGitHub 840fa673c1 metrics-generator: add metrics to estimate cardinality (#5710)
Add tempo_metrics_generator_registry_active_series_demand_estimate that estimates the active series demand.

This is especially useful when the active series reaches the max limit.
It uses HyperLogLog to estimate the cardinality with only 5KB per tenant, without having to store rejected series in memory.
2025-10-10 08:49:20 +02:00

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MetroHash
This package is a mechanical translation of the reference C++ code for
MetroHash, available at https://github.com/jandrewrogers/MetroHash
I claim no additional copyright over the original implementation.