This processor creates FlowFiles with random data or custom content. GenerateFlowFile is useful for load testing, configuration, and simulation. Also see DuplicateFlowFile for additional load testing.
test, random, generate, load
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 NiFi Expression Language.
| Display Name | API Name | Default Value | Allowable Values | Description |
|---|---|---|---|---|
| File Size | File Size | 0B | The size of the file that will be used | |
| Batch Size | Batch Size | 1 | The number of FlowFiles to be transferred in each invocation | |
| Data Format | Data Format | Text |
| Specifies whether the data should be Text or Binary |
| Unique FlowFiles | Unique FlowFiles | false |
| If true, each FlowFile that is generated will be unique. If false, a random value will be generated and all FlowFiles will get the same content but this offers much higher throughput |
| Custom Text | generate-ff-custom-text | If Data Format is text and if Unique FlowFiles is false, then this custom text will be used as content of the generated FlowFiles and the File Size will be ignored. Finally, if Expression Language is used, evaluation will be performed only once per batch of generated FlowFiles Supports Expression Language: true (will be evaluated using variable registry only) | ||
| Character Set | character-set | UTF-8 | Specifies the character set to use when writing the bytes of Custom Text to a flow file. | |
| Mime Type | mime-type | Specifies the value to set for the "mime.type" attribute. |
Supports Sensitive Dynamic Properties: No
Dynamic Properties allow the user to specify both the name and value of a property.
| Name | Value | Description |
|---|---|---|
| Generated FlowFile attribute name | Generated FlowFile attribute value | Specifies an attribute on generated FlowFiles defined by the Dynamic Property's key and value. If Expression Language is used, evaluation will be performed only once per batch of generated FlowFiles. Supports Expression Language: true (will be evaluated using variable registry only) |
| Name | Description |
|---|---|
| success |
| Name | Description |
|---|---|
| mime.type | Sets the MIME type of the output if the 'Mime Type' property is set |