wednesday

README

wednesday

Fast Avro Schema Registry

This system is under active development and not production ready.

Wednesday is an Avro Schema Registry fully API-compatible with Confluent Schema Registry.

Additional features:

• schemas stored in Cassanrda
• high-available cluster mode
• authentication support

Guide

• Modes
  • Standalone mode
  • Cluster mode
• Storage
  • In-memory
  • Cassandra
• Authentication
  • In-memory
  • Cassandra
  • Vault

Installation

$ go get -u github.com/goavro/wednesday

Usage

  -brokers string
      Kafka broker list (default "localhost:9092")
  -cassandra string
      Cassandra nodes
  -cql-version string
      Cassandra CQL version (default "3.0.0")
  -log-level value
      Log level: trace|debug|info|warning|error|fatal (default info)
  -port int
      HTTP port to listen (default 8081)
  -proto-version int
      Cassandra protocol version (default 3)
  -topic string
      Kafka topic (default "schemas")

Modes

Standalone mode

You can launch wednesday in standalone mode, just don't set --brokers parameter.

$ wednesday

Cluster mode

Apache Kafka is used to sync state between instances for cluster mode. So you should launch Kafka and give wednesday broker list via --brokers parameter.

$ wednesday --brokers "broker1:9092,broker2:9092,broker3:9092"

Storage

In-memory storage

By default wednesday uses in-memory storage to store schemas. It is synced via Kafka and if you relaunch instance, it will first sync all available schemas from Kafka.

Cassandra storage

You can use Cassandra to store schemas and configs. Just set --cassandra parameter pointing to Cassandra cluster. Optionally you can set --cql-version and --proto-version.

$ wednesday --cassandra "cassandra1.cluster,cassandra2.cluster"

Authentication

TODO

In-memory

TODO

Cassandra

TODO

Vault

TODO