mirror of https://github.com/grpc/grpc-java.git
354b028cae
This is needed by gRFC A78 for xds metrics, and for RLS metrics. Since gauges need to acquire a lock (or other synchronization) in the callback, the callback allows batching multiple gauges together to avoid acquiring-and-requiring such locks. Unlike other metrics, gauges are reported on-demand to the MetricSink. This means not all sinks will receive the same data, as the sinks will ask for the gauges at different times. |
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