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README
¶
Kafka topic management tools
Read the blog post: Introducing Kafka-Kit: Tools for Scaling Kafka
This repository contains several services and tools for that help better operate Kafka. See the README for each tool for further details.
topicmappr
Topicmappr replaces and extends the kafka-reassign-partition tool bundled with Kafka. It allows for minimal movement broker replacements, cluster storage rebalancing / partition bin-packing, leadership optimization, many-at-once topic management, and more—all with rack awareness support.
registry
A gRPC+HTTP API service for Kafka that allows granular resource (topics, brokers) lookup and management with custom tagging support.
autothrottle
A service that automatically paces Kafka replication/recovery throttle rates, powered with metrics using the Datadog API.
metricsfetcher
A utility that fetches metrics via the Datadog API for Kafka storage rebalancing and partition mapping with topicmappr.
Building
All tools/services will likely build on recent versions of MacOS and Go: go install ./cmd/....
A Docker based environment is available for repeatable linux builds and local testing. This will setup a Kafka environment with a running Registry instance from which all other Kafka-Kit tools will be available:
$ make run-compose
docker-compose build
zookeeper uses an image, skipping
kafka uses an image, skipping
Building ssl_setup
[+] Building 0.5s (15/15) FINISHED
[...build output...]
$ docker exec -ti kafka-kit_registry_1 bash
root@280ae6597b9b:/go/src/github.com/DataDog/kafka-kit# which topicmappr registry autothrottle metricsfetcher
/go/bin/topicmappr
/go/bin/registry
/go/bin/autothrottle
/go/bin/metricsfetcher
root@280ae6597b9b:/go/src/github.com/DataDog/kafka-kit# curl -s localhost:8080/v1/topics/list | jq
{
"topics": {},
"names": [
"__consumer_offsets"
]
}
When finished, make stop-compose will tear down the environment.
Development
See the Development Guide for testing and contributing changes.
Directories
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| Path | Synopsis |
|---|---|
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package cluster specifies clustering primitives for multi-node service coordination.
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package cluster specifies clustering primitives for multi-node service coordination. |
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zookeeper
package zookeeper implements a ZooKeeper based Lock.
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package zookeeper implements a ZooKeeper based Lock. |
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cmd
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autothrottle
These are legacy methods that perform updates directly through ZooKeeper.
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These are legacy methods that perform updates directly through ZooKeeper. |
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Package kafkaadmin provides Kafka administrative functionality.
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Package kafkaadmin provides Kafka administrative functionality. |
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Package kafkametrics fetches Kafka broker metrics and posts events to supported metrics backends.
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Package kafkametrics fetches Kafka broker metrics and posts events to supported metrics backends. |
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datadog
Package datadog implements a kafkametrics Handler.
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Package datadog implements a kafkametrics Handler. |
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Package registry is a reverse proxy.
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Package registry is a reverse proxy. |