id: org.apache.streampipes.sinks.internal.jvm.datalake title: Data Lake sidebar_label: Data Lake
Description
Stores events in the internal data lake so that data can be visualized in the live dashboard or in the data explorer. Simply create a pipeline with a data lake sink, switch to one of the data exploration tool and start exploring your data!
Required input
This sink requires an event that provides a timestamp value (a field that is marked to be of type http://schema .org/DateTime.
Configuration
Identifier
The name of the measurement (table) where the events are stored.
Schema Update Options
The Schema Update Options dictate the behavior when encountering a measurement (table) with the same identifier.
Option 1: Update Schema
- Description: Overrides the existing schema.
- Effect on Data: The data remains in the data lake, but accessing old data is restricted to file export.
- Impact on Features: Other StreamPipes features, such as the Data Explorer, will only display the new event schema.
Option 2: Extend Existing Schema
- Description: Keeps old event fields in the event schema.
- Strategy: This follows an append-only strategy, allowing continued work with historic data.
- Consideration: Old properties may exist for which no new data is generated.