PerKeyConfig

Value parameters

directIdleKeys

Whether, with a zero maxBatchDelay, an idle key's input is sent at once by its own caller (the default), or by a worker like any batch. Turn it off when the downstream needs a hard bound on concurrent calls: direct calls are not counted against maxInFlightBatches.

maxBatchDelay

How long a partial batch may wait for more inputs after its oldest input was submitted. The default, zero, sends an idle key's input at once, directly from its caller, and whatever is waiting as soon as the key's previous call completes: under load batches then grow by themselves, at no added latency. A positive delay batches every input, even an idle key's.

maxBatchSize

A key's batch is dispatched as soon as it holds this many inputs.

maxBatchWeight

A key's batch is dispatched as soon as its inputs weigh this much in total, and never carries more, except for a single input that is heavier on its own: it travels alone. Use it to stay under a per-request byte limit downstream.

maxInFlightBatches

Maximum number of batch calls running concurrently, across all keys. Each key has at most one. Direct calls for idle keys are not counted.

maxQueuedWeight

Maximum total weight of the inputs waiting, across all keys. Further inputs are rejected with FerryError.Rejected. With weights in bytes, this bounds the memory held by waiting inputs.

maxQueueing

Maximum number of inputs waiting, across all keys. Further inputs are rejected with FerryError.Rejected.

Attributes

Companion

object

Source

PerKeyConfig.scala

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Supertypes

trait Serializable

trait Product

trait Equals

class Object

trait Matchable

class Any

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