telegraf/plugins/inputs/mqtt_consumer/README.md

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# MQTT Consumer Input Plugin
The [MQTT](http://mqtt.org/) consumer plugin reads from
specified MQTT topics and adds messages to InfluxDB.
The plugin expects messages in the
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[Telegraf Input Data Formats](https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md).
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### Configuration:
```toml
# Read metrics from MQTT topic(s)
[[inputs.mqtt_consumer]]
servers = ["localhost:1883"]
## MQTT QoS, must be 0, 1, or 2
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qos = 0
## Topics to subscribe to
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topics = [
"telegraf/host01/cpu",
"telegraf/+/mem",
"sensors/#",
]
## Maximum number of metrics to buffer between collection intervals
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metric_buffer = 100000
## username and password to connect MQTT server.
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# username = "telegraf"
# password = "metricsmetricsmetricsmetrics"
## Optional SSL Config
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# ssl_ca = "/etc/telegraf/ca.pem"
# ssl_cert = "/etc/telegraf/cert.pem"
# ssl_key = "/etc/telegraf/key.pem"
## Use SSL but skip chain & host verification
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# insecure_skip_verify = false
## Data format to consume. This can be "json", "influx" or "graphite"
## Each data format has it's own unique set of configuration options, read
## more about them here:
## https://github.com/influxdata/telegraf/blob/master/docs/DATA_FORMATS_INPUT.md
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data_format = "influx"
```
### Tags:
- All measurements are tagged with the incoming topic, ie
`topic=telegraf/host01/cpu`