File System (FS) Action Parameters
Allows manipulation of files and directories in HDFS from a workflow application.
Table 7.42. FS Action, General Parameters
| Parameter Name | Description | Additional Information | Example |
|---|---|---|---|
| Command | Options are mkdir, delete, move, chmod, touchz, chgrp | Commands are executed synchronously within the FS action, but the workflow job waits until the commands are completed before continuing to the next action. | delete |
| Path | The path to which the command will be applied. | hdfs://wfm.openstacklocal/user/test | |
| Job XML | You can select one or more job.xml files to pass Java configuration elements. | The configuration file that specifies the variables used for the Java action in the workflow. Can be overwritten or replaced by entries under the Configuration section. |
Table 7.43. FS Action, Transition Parameters
| Parameter Name | Description | Additional Information | Default Setting |
|---|---|---|---|
| Error To | Indicates what action to take if the action errors out. | You can modify this setting in the dialog box or by modifying the workflow graph. | Defaults to kill node, but can be changed. |
| OK To | Indicates what node to transition to if the action succeeds. | You can modify this setting in the dialog box or by modifying the workflow graph. | Defaults to the next node in the workflow. |
Table 7.44. FS Action, Advanced Properties Parameters
| Parameter Name | Description | Additional Information | Example |
|---|---|---|---|
| Name Node | Manages the file system metadata. | Keeps the directory tree of all files in the file system, and tracks where across the cluster the file data is kept. Clients contact NameNode for file metadata or file modifications. | ${nameNode} |
Table 7.45. FS Action, Configuration Parameters
| Parameter Name | Description | Additional Information | Example |
|---|---|---|---|
| Name and Value | The name/value pair can be used instead of a job.xml file or can override parameters set in the job.xml file. | Used to specify formal parameters. If the name and value are specified, the user can override the values from the Submit dialog box. Can be parameterized (templatized) using EL expressions. |