EventConsumerIT: Support ReviewDb and NoteDb backends

When NoteDb mode is used more ref updated events are triggered.

Test Plan:

1. Run tests in ReviewDb mode:
  $ bazel test plugins/kafka-events:kafka_events_tests

2. Run tests in NoteDb mode:
  $ bazel test --test_env=GERRIT_NOTEDB=READ_WRITE \

Change-Id: I96d9602d978c419c5fcc753015d6b01ed6cf620b
1 file changed
tree: bfa49e12afada9fcc35f5835adf69933156ef9a0
  1. BUILD
  3. README.md
  4. external_plugin_deps.bzl
  5. src/

Kafka: Gerrit event producer for Apache Kafka

Build Status


This plugins allows to define a distributed stream of events published by Gerrit.

Events can be anything, from the traditional stream events to the Gerrit metrics.

This plugin requires Gerrit 2.13 or laster.


  • linux
  • java-1.8
  • Bazel


Kafka plugin can be build as a regular ‘in-tree’ plugin. That means that is required to clone a Gerrit source tree first and then to have the Kafka plugin source directory into the /plugins path. Additionally, the plugins/external_plugin_deps.bzl file needs to be updated to match the Kafka plugin one.

git clone --recursive https://gerrit.googlesource.com/gerrit
git clone https://gerrit.googlesource.com/plugins/kafka-events gerrit/plugins/kafka-events
cd gerrit
rm plugins/external_plugin_deps.bzl
ln -s ./kafka-events/external_plugin_deps.bzl plugins/.

To build the kafka-events plugins, issue the command from the Gerrit source path:

bazel build plugins/kafka-events

The output is created in


Minimum Configuration

Assuming a running Kafka broker on the same Gerrit host, add the following settings to gerrit.config:

  [plugin "kafka-events"]
    bootstrapServers = localhost:9092