NiFi Flow Files
The Flow Files page displays the charts and table metrics of flow files over a certain period of time.
The default time range is Last 24 hrs. To view statistics from a custom date range, click the calendar icon and select a time frame and timezone of your choice.
Searching by Attribute
To search a flow file by an attribute value, do the following.
- In the search bar located in the top of the page, type
current_attribute.(attribute name):(value). - Click the search icon.
Alternatively, you can click the attribute value in the table to set the search query.
Flow Files & Avg File Process Duration
This chart displays the count of flow files and the time taken to process these files. The following metrics are displayed in the chart.
- Avg Processing Time: The average time utilized to process the flow files.
- File Count: The number of files in the cluster.
Filters
You can set filters to display the metrics in the table by choosing a filter from the following available categories located in the left of the page.
- Clusters: Displays the name of the clusters connected.
- Process Groups: Displays the name of process groups running in the cluster.
Flow Files Table
This table displays the following flow files related metrics including Attributes and Processor Details.
| Metric | Description |
|---|---|
| Flow File ID | The ID of the flow file. |
| # of Processors | The number of processors used in the selected flow file. |
| Total Duration | The time taken to process the flow files. |
| Start Time | The time at which the processing of flow files started. |
| File Size | The size of the selected flow file. |
Attributes
For every flow file ID, the following attributes are displayed.
| Attribute | Description |
|---|---|
| absolute.path | The path from where the file is read and written to. |
| file.creationTime | The date and time at which the file was created. |
| file.group | The name of the file group the flow file belongs to. |
| file.lastAccessTime | The date and time at which the file was last accessed. |
| file.lastModifiedTime | The date and time at which the file was last modified. |
| file.owner | The user who created the file. |
| file.permissions | The access rights given to the file. |
| filename | The name of the file. |
| path | The path of the file. |
| UUID | The UUID of the file. |
Processor Details
For every flow file ID, the following processor details metrics are displayed.
| Metric | Description |
|---|---|
| event_time | The date and time at which the processing event occurred. |
| Lineage Start | The at which file lineage started. |
| parent_flowfiles_uuids | The UUID of the parent flow file. |
| flowfile_entry_date | The date and time at which the flow file was created in the system. |
| Duration | The duration of the flow file processing. |
| component_type | The component type of the processor, either GetFile or PutFile. |
| event_type | The provenance event type of the flow file. |
| child_flowfiles_uuids | The UUID of the child flow file. |