Description and usage of MoveHDFS processor:

Rename existing files or a directory of files (non-recursive) on Hadoop Distributed File System (HDFS).

Tags:

hadoop, HDFS, put, move, filesystem, moveHDFS

Properties:

In the list below, the names of required properties appear in bold. Any other properties (not in bold) are considered optional. The table also indicates any default values, and whether a property supports the Expression Language Guide.

Name	Default Value	Allowable Values	Description
Hadoop Configuration Resources			A file or comma separated list of files which contains the Hadoop file system configuration. Without this, Hadoop will search the classpath for a 'core-site.xml' and 'hdfs-site.xml' file or will revert to a default configuration. To use swebhdfs, see 'Additional Details' section of PutHDFS's documentation. Supports Expression Language: true (will be evaluated using variable registry only)
Kerberos Credentials Service		Controller Service API:  KerberosCredentialsService Implementation:  KeytabCredentialsService	Specifies the Kerberos Credentials Controller Service that should be used for authenticating with Kerberos
Kerberos Principal			Kerberos principal to authenticate as. Requires nifi.kerberos.krb5.file to be set in your nifi.properties Supports Expression Language: true (will be evaluated using variable registry only)
Kerberos Keytab			Kerberos keytab associated with the principal. Requires nifi.kerberos.krb5.file to be set in your nifi.properties Supports Expression Language: true (will be evaluated using variable registry only)
Kerberos Relogin Period	4 hours		Period of time which should pass before attempting a kerberos relogin. This property has been deprecated, and has no effect on processing. Relogins now occur automatically. Supports Expression Language: true (will be evaluated using variable registry only)
Additional Classpath Resources			A comma-separated list of paths to files and/or directories that will be added to the classpath. When specifying a directory, all files with in the directory will be added to the classpath, but further sub-directories will not be included.
Conflict Resolution Strategy	fail	* replace  * ignore  * fail	Indicates what should happen when a file with the same name already exists in the output directory
Input Directory or File	${path}		The HDFS directory from which files should be read, or a single file to read. Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
Output Directory			The HDFS directory where the files will be moved to Supports Expression Language: true (will be evaluated using flow file attributes and variable registry)
HDFS Operation	move	* move * copy	The operation that will be performed on the source file
File Filter Regex			A Java Regular Expression for filtering Filenames; if a filter is supplied then only files whose names match that Regular Expression will be fetched, otherwise all files will be fetched
Ignore Dotted Files	true	* true * false	If true, files whose names begin with a dot (".") will be ignored
Remote Owner			Changes the owner of the HDFS file to this value after it is written. This only works if NiFi is running as a user that has HDFS super user privilege to change owner
Remote Group			Changes the group of the HDFS file to this value after it is written. This only works if NiFi is running as a user that has HDFS super user privilege to change group

Relationships:

Name	Description
success	Files that have been successfully renamed on HDFS are transferred to this relationship
failure	Files that could not be renamed on HDFS are transferred to this relationship

Reads Attributes:

Name	Description
filename	The name of the file written to HDFS comes from the value of this attribute.

Writes Attributes:

Name	Description
filename	The name of the file written to HDFS is stored in this attribute.
absolute.hdfs.path	The absolute path to the file on HDFS is stored in this attribute.

State management:

This component does not store state.

Restricted:

Required Permission	Explanation
read filesystem	Provides operator the ability to retrieve any file that NiFi has access to in HDFS or the local filesystem.
write filesystem	Provides operator the ability to delete any file that NiFi has access to in HDFS or the local filesystem.

Input requirement:

This component requires an incoming relationship.

System Resource Considerations:

None specified.