GetSFTP

Description:

Fetches files from an SFTP Server and creates FlowFiles from them

Tags:

sftp, get, retrieve, files, fetch, remote, ingest, source, input

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, whether a property supports the NiFi Expression Language, and whether a property is considered "sensitive", meaning that its value will be encrypted. Before entering a value in a sensitive property, ensure that the nifi.properties file has an entry for the property nifi.sensitive.props.key.

NameDefault ValueAllowable ValuesDescription
HostnameThe fully qualified hostname or IP address of the remote system
Supports Expression Language: true
Port22The port that the remote system is listening on for file transfers
UsernameUsername
Supports Expression Language: true
PasswordPassword for the user account
Sensitive Property: true
Supports Expression Language: true
Private Key PathThe fully qualified path to the Private Key file
Private Key PassphrasePassword for the private key
Sensitive Property: true
Remote PathThe path on the remote system from which to pull or push files
Supports Expression Language: true
File Filter RegexProvides a Java Regular Expression for filtering Filenames; if a filter is supplied, only files whose names match that Regular Expression will be fetched
Path Filter RegexWhen Search Recursively is true, then only subdirectories whose path matches the given Regular Expression will be scanned
Polling Interval60 secDetermines how long to wait between fetching the listing for new files
Search Recursivelyfalse
  • true
  • false
If true, will pull files from arbitrarily nested subdirectories; otherwise, will not traverse subdirectories
Ignore Dotted Filestrue
  • true
  • false
If true, files whose names begin with a dot (".") will be ignored
Delete Originaltrue
  • true
  • false
Determines whether or not the file is deleted from the remote system after it has been successfully transferred
Connection Timeout30 secAmount of time to wait before timing out while creating a connection
Data Timeout30 secWhen transferring a file between the local and remote system, this value specifies how long is allowed to elapse without any data being transferred between systems
Host Key FileIf supplied, the given file will be used as the Host Key; otherwise, no use host key file will be used
Max Selects100The maximum number of files to pull in a single connection
Remote Poll Batch Size5000The value specifies how many file paths to find in a given directory on the remote system when doing a file listing. This value in general should not need to be modified but when polling against a remote system with a tremendous number of files this value can be critical. Setting this value too high can result very poor performance and setting it too low can cause the flow to be slower than normal.
Strict Host Key Checkingfalse
  • true
  • false
Indicates whether or not strict enforcement of hosts keys should be applied
Send Keep Alive On Timeouttrue
  • true
  • false
Indicates whether or not to send a single Keep Alive message when SSH socket times out
Use Compressionfalse
  • true
  • false
Indicates whether or not ZLIB compression should be used when transferring files
Use Natural Orderingfalse
  • true
  • false
If true, will pull files in the order in which they are naturally listed; otherwise, the order in which the files will be pulled is not defined

Relationships:

NameDescription
successAll FlowFiles that are received are routed to success

Reads Attributes:

None specified.

Writes Attributes:

NameDescription
filenameThe filename is set to the name of the file on the remote server
pathThe path is set to the path of the file's directory on the remote server. For example, if the <Remote Path> property is set to /tmp, files picked up from /tmp will have the path attribute set to /tmp. If the <Search Recursively> property is set to true and a file is picked up from /tmp/abc/1/2/3, then the path attribute will be set to /tmp/abc/1/2/3
file.lastModifiedTimeThe date and time that the source file was last modified
file.ownerThe numeric owner id of the source file
file.groupThe numeric group id of the source file
file.permissionsThe read/write/execute permissions of the source file
absolute.pathThe full/absolute path from where a file was picked up. The current 'path' attribute is still populated, but may be a relative path

State management:

This component does not store state.

Restricted:

This component is not restricted.

Input requirement:

This component does not allow an incoming relationship.

See Also:

PutSFTP