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Overview

Discard all data without performing any operation. Useful for testing pipeline performance without I/O overhead, and inspect transforms feeding into it during development.

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Configuration

sinks:
  my_blackhole_sink:
    type: blackhole
    from: my_transform

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Parameters

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type
string
required
Must be blackhole
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from
string
required
The transform or source to read data from

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Use Cases

  • Performance Testing: Measure transform performance without sink overhead
  • Pipeline Validation: Test that data flows correctly without writing anywhere
  • Development: Temporarily disable output while working on transforms

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Example

sinks:
  perf_test:
    type: blackhole
    from: complex_transform