Connectors
Impulse
Connectors
Impulse
Periodic generator source
The Impulse source generates a stream of events at a specified interval. It is useful for testing and can be used to drive more complex generated sources.
Configuring the Connection
Impulse sources can be created via the Web UI or directly in SQL.
An impulse connection has several required and optional fields:
| Field | Description | Required | Example |
|---|---|---|---|
| event_rate | The number of messages per second to produce | Yes | 100 |
| event_time_interval | The number of microseconds between the event times of subsequent events emitted by the source; if not set wall-clock time is used | No | 200000 |
| message_count | If set, the source will finish after emitting this many messages; otherwise it runs indefinitely | No | 50000 |
An impulse source can be created in SQL like this:
CREATE TABLE impulse WITH (
connector = 'impulse',
event_rate = '100'
);