Arroyo

Rust stream processing engine running SQL pipelines with checkpointed state.

Provider: default
Kind: Stream processor
Category: Messaging
Official docs: https://doc.arroyo.dev/configuration

Properties · 4 set by this component

property	type	values	required	kind default	this component
checkpointIntervalSeconds	integer	—	no	—	▸ 10
checkpointStore · component property	enum	local \| s3 \| gcs \| azure-blob	no	local	inherited
configDatabase · component property	enum	sqlite \| postgres	no	sqlite	inherited
exactlyOnce	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	▸ event-time

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: "arroyo", component: "arroyo" }

Other Stream processor products · 33

Realtime Compute for Apache Flinkalibaba-flinkalibabacloudstream-processor Amazon EventBridge Pipesaws-eventbridge-pipesawsstream-processor Amazon Data Firehoseaws-firehoseawsstream-processor Amazon Managed Service for Apache Flinkaws-managed-flinkawsstream-processor Amazon OpenSearch Ingestionaws-opensearch-ingestionawsstream-processor Azure Stream Analyticsazure-stream-analyticsazurestream-processor Cloudflare Logpushcloudflare-logpushcloudflarestream-processor Cloudflare Pipelinescloudflare-pipelinescloudflarestream-processor Apache Beambeamstream-processor Bytewaxbytewaxstream-processor Drasidrasistream-processor Apache Flinkflinkstream-processor Kafka Streamskafka-streamsstream-processor ksqlDBksqldbstream-processor Logstashlogstashstream-processor Materializematerializestream-processor Apache NiFinifistream-processor Norikranorikrastream-processor Redpanda Connectredpanda-connectstream-processor RisingWaverisingwavestream-processor Apache Samzasamzastream-processor Snowplowsnowplowstream-processor Spark Structured Streamingspark-streamingstream-processor Apache Stormstormstream-processor Generic stream processorstream-processorstream-processor Tremortremorstream-processor Google Cloud Dataflowgoogle-dataflowgcpstream-processor Manufacturing Data Enginegoogle-manufacturing-data-enginegcpstream-processor Activity Tracker Event Routingibm-activity-tracker-event-routingibmstream-processor IBM Cloud Logs Routingibm-logs-routingibmstream-processor IBM Cloud Metrics Routingibm-metrics-routingibmstream-processor OCI Connector Huboci-connector-hubocistream-processor OCI GoldenGate Stream Analyticsoci-goldengate-stream-analyticsocistream-processor

Source

1# yaml-language-server: $schema=../../schema/component.schema.json
2# Arroyo: Rust stream processing engine with SQL pipelines. pipeline.default-checkpoint-interval is
3# 10s ("Arroyo, Configuration"), state is held in memory on worker nodes and checkpoints are written
4# to remote object storage - S3, GCS, Azure Blob or an S3-compatible store - so pipelines can recover
5# ("Arroyo, Architecture"). Watermarks use a fixed offset from the last event timestamp.
6schemaVersion: "1"
7type: "component"
8id: "arroyo"
9kind: "stream-processor"
10provider: "default"
11docs: "https://doc.arroyo.dev/configuration"
12defaults:
13  managed: false
14  windowing: "event-time"
15  checkpointIntervalSeconds: 10
16  stateBackend: "memory"
17properties:
18  checkpointStore:
19    type: "enum"
20    values: ["local", "s3", "gcs", "azure-blob"]
21    default: "local"
22  configDatabase:
23    type: "enum"
24    values: ["sqlite", "postgres"]
25    default: "sqlite"

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