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Kafka Connect

Introduction

A Kafka Connect plugin for transferring data between Crux nodes and Kafka.

The Crux source connector will publish transacations on a node to a Kafka topic, and the sink connector can receive transactions from a Kafka topic and submit them to a node.

Table 1. Currently supported data formats
Data formatSink/Source

JSON

Both

Avro

Sink

Transit

Source

EDN

Both

To get started with the connector, there are two separate guides (depending on whether you are using a full Confluent Platform installation, or a basic Kafka installation):

Source Configuration

url

  • Destination URL of Crux HTTP end point

  • Type: String

  • Importance: High

  • Default: "http://localhost:3000"

topic

  • The Kafka topic to publish data to

  • Type: String

  • Importance: High

  • Default: "connect-test"

format

  • Format to send data out as: edn, json or transit

  • Type: String

  • Importance: Low

  • Default: "edn"

mode

  • Mode to use: tx or doc

  • Type: String

  • Importance: Low

  • Default: "tx"

batch.size

  • The maximum number of records the Source task can read from Crux at one time.

  • Type: Int

  • Importance: LOW

  • Default: 2000

Sink Configuration

url

  • Destination URL of Crux HTTP end point

  • Type: String

  • Importance: High

  • Default: "http://localhost:3000"

id.key

  • Record key to use as :crux.db/id

  • Type: String

  • Importance: Low

  • Default: "crux.db/id"

❮JDBC NodesKafka Nodes❯

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