Tremor

Event processing system for high-volume log and metric pipelines.

Provider: default
Kind: Stream processor
Category: Messaging
Official docs: https://github.com/tremor-rs/tremor-runtime

Properties · 4 set by this component

property	type	values	required	kind default	this component
checkpointIntervalSeconds	integer	—	no	—	inherited
deploymentLanguage · component property	enum	troy	no	troy	inherited
exactlyOnce	boolean	—	no	false	▸ false
guaranteedDelivery · component property	boolean	—	no	false	inherited
instances	integer	—	no	—	inherited
lateDataPolicy	enum	drop \| shift \| sideline	no	—	inherited
managed	boolean	—	no	false	▸ false
stateBackend	enum	memory \| rocksdb \| external	no	memory	▸ memory
watermarkSeconds	integer	—	no	—	inherited
windowing	enum	none \| event-time \| processing-time	no	none	▸ none

Rules that apply · 1

Every rule whose selector covers this component's kind or its category. Whether a rule fires depends on the design: its properties, its edges and its groups.

Event-time windows without watermarkwarning

windowed-aggregation-without-watermark

Event-time windows need a watermark to know when a window is complete. Without one the processor either waits forever or closes windows early and silently drops late events.

— all of these hold:
— the node's `windowing` is "event-time"
— the node's `watermarkSeconds` has no value

Use it in a design

nodes:
  - { id: "tremor", component: "tremor" }

Other Stream processor products · 33

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Source

1# yaml-language-server: $schema=../../schema/component.schema.json
2# Tremor: event processing system for high-volume log and metric pipelines, written in Rust.
3# Per the Tremor documentation a deployment is a Troy file wiring connectors into pipelines, and
4# windowed aggregation is written explicitly rather than applied by default.
5schemaVersion: "1"
6type: "component"
7id: "tremor"
8kind: "stream-processor"
9provider: "default"
10docs: "https://github.com/tremor-rs/tremor-runtime"
11defaults:
12  managed: false
13  windowing: "none"
14  exactlyOnce: false
15  stateBackend: "memory"
16properties:
17  deploymentLanguage:
18    type: "enum"
19    values: ["troy"]
20    default: "troy"
21  guaranteedDelivery:
22    type: "boolean"
23    default: false

The same page as markdown, for an agent: /catalogue/components/tremor.md