Hadoop File System (HDFS) Operation

Hadoop File System Operation tasks perform an operation in the Hadoop File System.

All of the fields described in this page are specific to this service. To get general information for setting up a task, see Tasks.

Hadoop File System Properties

This table describes Hadoop File System Operation task properties:

The fields that will be displayed to the user will vary based on the operation being performed.
Field Description
Operation

The operation to perform. The operations include:

  • Create Directory – Creates a directory on HDFS.
  • List Directory Contents – Lists the contents of a directory on HDFS.
  • Empty Directory – Remove all the items from a directory on HDFS.
  • Delete Directory – Removes a directory on HDFS.
  • Create Empty File – Creates an empty file on HDFS.
  • Copy File – Copies a file from one location on HDFS to another.
  • Copy File to HDFS – Copies a file from the Command Server to HDFS.
  • Copy File from HDFS – Copies a file from HDFS to the Command Server.
  • Move File – Moves a file from one location on HDFS to another.
  • Move File to HDFS – Moves a file from the Command Server to HDFS.
  • Move File from HDFS – Moves a file from HDFS to the Command Server.
  • Display File Contents – Display the contents of a file contained on HDFS.
  • Show File Information – Retrieves information about a file contained on HDFS.
  • Change File/Directory Owner – Change the owner of a file or directory on HDFS.
  • Change File/Directory Group – Change the group of the file or directory on HDFS.
  • Change File/Directory Permissions – Change the permissions of a file or directory on HDFS.
Location The fully-qualified path of the file(s) on HDFS.
Local File The fully-qualified path of the file(s) on the Command Server.
Destination For operations that utilize a target location, the fully-qualified path of the target file(s) on HDFS.
Recursive The selected operation will be performed on any files and sub-directories in the directory tree below the path specified in the Location field
Owner The name of the new owner of the specified items.
Group The name of the new group of the specified items.
Permissions The new permissions for the specified items. The value for this field can be any allowable value for the chmod command.
See Creating Processes to add this task to a process.