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[ aws . lambda ]

put-function-concurrency

Description

Sets the maximum number of simultaneous executions for a function, and reserves capacity for that concurrency level.

Concurrency settings apply to the function as a whole, including all published versions and the unpublished version. Reserving concurrency both guarantees that your function has capacity to process the specified number of events simultaneously, and prevents it from scaling beyond that level. Use GetFunction to see the current setting for a function.

Use GetAccountSettings to see your regional concurrency limit. You can reserve concurrency for as many functions as you like, as long as you leave at least 100 simultaneous executions unreserved for functions that aren't configured with a per-function limit. For more information, see Managing Concurrency .

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.

Synopsis

  put-function-concurrency
--function-name <value>
--reserved-concurrent-executions <value>
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]

Options

--function-name (string)

The name of the Lambda function.

Name formats
  • Function name - my-function .
  • Function ARN - arn:aws:lambda:us-west-2:123456789012:function:my-function .
  • Partial ARN - 123456789012:function:my-function .

The length constraint applies only to the full ARN. If you specify only the function name, it is limited to 64 characters in length.

--reserved-concurrent-executions (integer)

The number of simultaneous executions to reserve for the function.

--cli-input-json (string) Performs service operation based on the JSON string provided. The JSON string follows the format provided by --generate-cli-skeleton. If other arguments are provided on the command line, the CLI values will override the JSON-provided values. It is not possible to pass arbitrary binary values using a JSON-provided value as the string will be taken literally.

--generate-cli-skeleton (string) Prints a JSON skeleton to standard output without sending an API request. If provided with no value or the value input, prints a sample input JSON that can be used as an argument for --cli-input-json. If provided with the value output, it validates the command inputs and returns a sample output JSON for that command.

See 'aws help' for descriptions of global parameters.

Output

ReservedConcurrentExecutions -> (integer)

The number of concurrent executions reserved for this function. For more information, see Managing Concurrency .