Table Of Contents


User Guide

First time using the AWS CLI? See the User Guide for help getting started.

[ aws . glue ]



Updates a crawler. If a crawler is running, you must stop it using StopCrawler before updating it.

See also: AWS API Documentation

See 'aws help' for descriptions of global parameters.


--name <value>
[--role <value>]
[--database-name <value>]
[--description <value>]
[--targets <value>]
[--schedule <value>]
[--classifiers <value>]
[--table-prefix <value>]
[--schema-change-policy <value>]
[--configuration <value>]
[--crawler-security-configuration <value>]
[--cli-input-json <value>]
[--generate-cli-skeleton <value>]


--name (string)

Name of the new crawler.

--role (string)

The IAM role (or ARN of an IAM role) used by the new crawler to access customer resources.

--database-name (string)

The AWS Glue database where results are stored, such as: arn:aws:daylight:us-east-1::database/sometable/* .

--description (string)

A description of the new crawler.

--targets (structure)

A list of targets to crawl.

JSON Syntax:

  "S3Targets": [
      "Path": "string",
      "Exclusions": ["string", ...]
  "JdbcTargets": [
      "ConnectionName": "string",
      "Path": "string",
      "Exclusions": ["string", ...]
  "DynamoDBTargets": [
      "Path": "string"

--schedule (string)

A cron expression used to specify the schedule (see Time-Based Schedules for Jobs and Crawlers . For example, to run something every day at 12:15 UTC, you would specify: cron(15 12 * * ? *) .

--classifiers (list)

A list of custom classifiers that the user has registered. By default, all built-in classifiers are included in a crawl, but these custom classifiers always override the default classifiers for a given classification.


"string" "string" ...

--table-prefix (string)

The table prefix used for catalog tables that are created.

--schema-change-policy (structure)

Policy for the crawler's update and deletion behavior.

Shorthand Syntax:


JSON Syntax:

  "UpdateBehavior": "LOG"|"UPDATE_IN_DATABASE",

--configuration (string)

Crawler configuration information. This versioned JSON string allows users to specify aspects of a crawler's behavior. For more information, see Configuring a Crawler .

--crawler-security-configuration (string)

The name of the SecurityConfiguration structure to be used by this Crawler.

--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.