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AWS::MediaTailor::Function ConcurrentExecutorConfiguration - AWS CloudFormation
SyntaxProperties

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AWS::MediaTailor::Function ConcurrentExecutorConfiguration

The configuration for a CONCURRENT_EXECUTOR function. A CONCURRENT_EXECUTOR runs a set of child functions in parallel, up to a maximum concurrency, and combines their output when all functions complete. For more information about functions, see Working with functions in the MediaTailor User Guide.

Syntax

To declare this entity in your CloudFormation template, use the following syntax:

JSON

{
  "FunctionList" : [ FunctionRef, ... ],
  "MaxConcurrency" : Integer,
  "Output" : {Key: Value, ...},
  "Runtime" : String,
  "TimeoutMilliseconds" : Integer
}

YAML

  FunctionList: 
    - FunctionRef
  MaxConcurrency: Integer
  Output: 
    Key: Value
  Runtime: String
  TimeoutMilliseconds: Integer

Properties

FunctionList

The list of child functions that MediaTailor runs in parallel. Each entry specifies a child function to execute and an optional run condition expression that controls whether the function runs.

Required: Yes

Type: Array of FunctionRef

Minimum: 1

Maximum: 10

Update requires: No interruption

MaxConcurrency

The maximum number of child functions that MediaTailor runs simultaneously. When the list contains more functions than MaxConcurrency, MediaTailor starts additional functions as running ones complete, so that no more than MaxConcurrency functions run at the same time.

Required: Yes

Type: Integer

Minimum: 1

Maximum: 2

Update requires: No interruption

Output

A map of output bindings that controls which bindings the executor commits to the session state after all child functions complete. Each key is a namespaced output path, and each value is an expression that MediaTailor evaluates against the combined results of the child functions.

Required: Yes

Type: Object of String

Pattern: .*

Update requires: No interruption

Runtime

The expression language used to evaluate expressions in the function configuration. Set this to JSONata.

Required: Yes

Type: String

Allowed values: JSONATA

Update requires: No interruption

TimeoutMilliseconds

The maximum time, in milliseconds, for all child functions to complete. This timeout covers every function in the list, including any HTTP calls the child functions make. If the executor exceeds this timeout, MediaTailor discards all output from the executor and proceeds with default behavior.

Required: Yes

Type: Integer

Minimum: 100

Maximum: 2000

Update requires: No interruption