Request Syntax Request Parameters Response Elements Errors See Also

UpdateLocationHdfs

Updates some parameters of a previously created location for a Hadoop Distributed File System cluster.

Request Syntax


{
   "AgentArns": [ "string" ],
   "AuthenticationType": "string",
   "BlockSize": number,
   "KerberosKeytab": blob,
   "KerberosKrb5Conf": blob,
   "KerberosPrincipal": "string",
   "KmsKeyProviderUri": "string",
   "LocationArn": "string",
   "NameNodes": [ 
      { 
         "Hostname": "string",
         "Port": number
      }
   ],
   "QopConfiguration": { 
      "DataTransferProtection": "string",
      "RpcProtection": "string"
   },
   "ReplicationFactor": number,
   "SimpleUser": "string",
   "Subdirectory": "string"
}

Request Parameters

For information about the parameters that are common to all actions, see Common Parameters.

The request accepts the following data in JSON format.

AgentArns

The Amazon Resource Names (ARNs) of the DataSync agents that can connect to your HDFS cluster.

Type: Array of strings

Array Members: Minimum number of 1 item. Maximum number of 4 items.

Length Constraints: Maximum length of 128.

Pattern: ^arn:(aws|aws-cn|aws-us-gov|aws-iso|aws-iso-b):datasync:[a-z\-0-9]+:[0-9]{12}:agent/agent-[0-9a-z]{17}$

Required: No

AuthenticationType

The type of authentication used to determine the identity of the user.

Type: String

Valid Values: SIMPLE | KERBEROS

Required: No

BlockSize

The size of the data blocks to write into the HDFS cluster.

Type: Integer

Valid Range: Minimum value of 1048576. Maximum value of 1073741824.

Required: No

KerberosKeytab

The Kerberos key table (keytab) that contains mappings between the defined Kerberos principal and the encrypted keys. You can load the keytab from a file by providing the file's address. If you use the AWS CLI, it performs base64 encoding for you. Otherwise, provide the base64-encoded text.

Type: Base64-encoded binary data object

Length Constraints: Maximum length of 65536.

Required: No

KerberosKrb5Conf

The krb5.conf file that contains the Kerberos configuration information. You can load the krb5.conf file by providing the file's address. If you're using the AWS CLI, it performs the base64 encoding for you. Otherwise, provide the base64-encoded text.

Type: Base64-encoded binary data object

Length Constraints: Maximum length of 131072.

Required: No

KerberosPrincipal

The Kerberos principal with access to the files and folders on the HDFS cluster.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^.+$

Required: No

KmsKeyProviderUri

The URI of the HDFS cluster's Key Management Server (KMS).

Type: String

Length Constraints: Minimum length of 1. Maximum length of 255.

Pattern: ^kms:\/\/http[s]?@(([a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9\-]*[A-Za-z0-9])(;(([a-zA-Z0-9\-]*[a-zA-Z0-9])\.)*([A-Za-z0-9\-]*[A-Za-z0-9]))*:[0-9]{1,5}\/kms$

Required: No

LocationArn

The Amazon Resource Name (ARN) of the source HDFS cluster location.

Type: String

Length Constraints: Maximum length of 128.

Pattern: ^arn:(aws|aws-cn|aws-us-gov|aws-iso|aws-iso-b):datasync:[a-z\-0-9]+:[0-9]{12}:location/loc-[0-9a-z]{17}$

Required: Yes

NameNodes

The NameNode that manages the HDFS namespace. The NameNode performs operations such as opening, closing, and renaming files and directories. The NameNode contains the information to map blocks of data to the DataNodes. You can use only one NameNode.

Type: Array of HdfsNameNode objects

Array Members: Minimum number of 1 item.

Required: No

QopConfiguration

The Quality of Protection (QOP) configuration specifies the Remote Procedure Call (RPC) and data transfer privacy settings configured on the Hadoop Distributed File System (HDFS) cluster.

Type: QopConfiguration object

Required: No

ReplicationFactor

The number of DataNodes to replicate the data to when writing to the HDFS cluster.

Type: Integer

Valid Range: Minimum value of 1. Maximum value of 512.

Required: No

SimpleUser

The user name used to identify the client on the host operating system.

Type: String

Length Constraints: Minimum length of 1. Maximum length of 256.

Pattern: ^[_.A-Za-z0-9][-_.A-Za-z0-9]*$

Required: No

Subdirectory

A subdirectory in the HDFS cluster. This subdirectory is used to read data from or write data to the HDFS cluster.

Type: String

Length Constraints: Maximum length of 4096.

Pattern: ^[a-zA-Z0-9_\-\+\./\$\p{Zs}]+$

Required: No

Response Elements

If the action is successful, the service sends back an HTTP 200 response with an empty HTTP body.

Errors

For information about the errors that are common to all actions, see Common Errors.

InternalException

This exception is thrown when an error occurs in the AWS DataSync service.

HTTP Status Code: 500

InvalidRequestException

This exception is thrown when the client submits a malformed request.

HTTP Status Code: 400