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 Expression Language Guide, 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.
Name | Default Value | Allowable Values | Description |
Hostname |
The fully qualified hostname or IP address of the remote system Supports Expression Language: true |
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Port | 22 | The port that the remote system is listening on for file transfers | |
Username | Username | ||
Password |
Password for the user account Sensitive Property: true |
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Private Key Path | The fully qualified path to the Private Key file | ||
Private Key Passphrase |
Password for the private key Sensitive Property: true |
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Remote Path |
The path on the remote system from which to pull or push files Supports Expression Language: true |
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File Filter Regex | Provides 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 Regex | When Search Recursively is true, then only subdirectories whose path matches the given Regular Expression will be scanned | ||
Polling Interval | 60 sec | Determines how long to wait between fetching the listing for new files | |
Search Recursively | false |
* true * false |
If true, will pull files from arbitrarily nested subdirectories; otherwise, will not traverse subdirectories |
Ignore Dotted Files | true |
* true * false |
If true, files whose names begin with a dot (".") will be ignored |
Delete Original | true |
* true * false |
Determines whether or not the file is deleted from the remote system after it has been successfully transferred |
Connection Timeout | 30 sec | Amount of time to wait before timing out while creating a connection | |
Data Timeout | 30 sec | When 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 File | If supplied, the given file will be used as the Host Key; otherwise, no use host key file will be used | ||
Max Selects | 100 | The maximum number of files to pull in a single connection | |
Remote Poll Batch Size | 5000 | The 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 Checking | false |
* true * false |
Indicates whether or not strict enforcement of hosts keys should be applied |
Send Keep Alive On Timeout | true |
* true * false |
Indicates whether or not to send a single Keep Alive message when SSH socket times out |
Use Compression | false |
* true * false |
Indicates whether or not ZLIB compression should be used when transferring files |
Use Natural Ordering | false |
* 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:
Name | Description |
success | All FlowFiles that are received are routed to success |
Reads Attributes:
None specified.
Writes Attributes:
Name | Description |
filename | The filename is set to the name of the file on the remote server |
path | The 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.lastModifiedTime | The date and time that the source file was last modified |
file.owner | The numeric owner id of the source file |
file.group | The numeric group id of the source file |
file.permissions | The read/write/execute permissions of the source file |
absolute.path | The full/absolute path from where a file was picked up. The current 'path' attribute is still populated, but may be a relative path |
See Also:
PutSFTP