42 lines
1.6 KiB
Markdown
42 lines
1.6 KiB
Markdown
# Kafka Consumer Input Plugin
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The [Kafka](http://kafka.apache.org/) consumer plugin polls a specified Kafka
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topic and adds messages to InfluxDB. The plugin assumes messages follow the
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line protocol. [Consumer Group](http://godoc.org/github.com/wvanbergen/kafka/consumergroup)
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is used to talk to the Kafka cluster so multiple instances of telegraf can read
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from the same topic in parallel.
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## Configuration
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```toml
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# Read metrics from Kafka topic(s)
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[[inputs.kafka_consumer]]
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## topic(s) to consume
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topics = ["telegraf"]
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## an array of Zookeeper connection strings
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zookeeper_peers = ["localhost:2181"]
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## the name of the consumer group
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consumer_group = "telegraf_metrics_consumers"
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## Maximum number of metrics to buffer between collection intervals
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metric_buffer = 100000
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## Offset (must be either "oldest" or "newest")
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offset = "oldest"
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## Data format to consume. This can be "json", "influx" or "graphite"
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## Each data format has it's own unique set of configuration options, read
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## more about them here:
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## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
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data_format = "influx"
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```
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## Testing
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Running integration tests requires running Zookeeper & Kafka. The following
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commands assume you're on OS X & using [boot2docker](http://boot2docker.io/) or docker-machine through [Docker Toolbox](https://www.docker.com/docker-toolbox).
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To start Kafka & Zookeeper:
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```
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docker run -d -p 2181:2181 -p 9092:9092 --env ADVERTISED_HOST=`boot2docker ip || docker-machine ip <your_machine_name>` --env ADVERTISED_PORT=9092 spotify/kafka
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```
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