fluentd_exporter

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fluentd_exporter

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Prometheus exporter for Fluentd

fluentd_exporter 최신버젼 다운로드

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# Fluentd Exporter for Prometheus [![Build Status](https://travis-ci.org/V3ckt0r/fluentd_exporter.svg?branch=master)](https://travis-ci.org/V3ckt0r/fluentd_exporter)

Simple server that scrapes `fluentd` metrics endpoint and exports them as Prometheus metrics.

## Setup

Fluentd exporter uses the fluentd monitoring agent api. [Fluentd official documentation](https://docs.fluentd.org/v1.0/articles/monitoring) details adding this source to the fluentd configuration file:
  ```
    <source>
      @type monitor_agent
      bind 0.0.0.0
      port 24220
    </source>
  ```
The metrics can then be accessed at: `curl http://host:24220/api/plugins.json`

## Flags/Arguments

```
  -telemetry.endpoint string
    	Path under which to expose metric. (default "/metrics")
  -insecure
    	Ignore server certificate if using https, Default: false.
  -log.format value
    	Set the log target and format. Example: "logger:syslog?appname=bob&local=7" or "logger:stdout?json=true" (default "logger:stderr")
  -log.level value
    	Only log messages with the given severity or above. Valid levels: [debug, info, warn, error, fatal] (default "info")
  -scrape_uri string
    	URI to fluentd metrics (default "http://localhost:24220/api/plugins.json")
  -telemetry.address string
    	Address on which to expose metrics. (default ":9309")
  -version
    	Print version information.
```

## Collectors

The exporter collects the following metrics:

**Fluentd metrics:**
```
# HELP fluentd_buffer_queue_length Buffered queue length
# TYPE fluentd_buffer_queue_length counter
# HELP fluentd_buffer_total_queued_size size of the total queued
# TYPE fluentd_buffer_total_queued_size counter
# HELP fluentd_retry_count fluentd retry count
# TYPE fluentd_retry_count counter
# HELP fluentd_up Could fluentd be reached
# TYPE fluentd_up gauge
```

**Request metrics:**
```
# HELP http_request_duration_microseconds The HTTP request latencies in microseconds.
# TYPE http_request_duration_microseconds summary
# HELP http_request_size_bytes The HTTP request sizes in bytes.
# TYPE http_request_size_bytes summary
# HELP http_response_size_bytes The HTTP response sizes in bytes.
# TYPE http_response_size_bytes summary
```

## Building and running

#### Building a binary
```
go build fluentd-exporter.go
./fluentd-exporter
```

#### Building a docker image
```
docker build -t fluentd_exporter .
docker run -it -p 9309:9309 fluentd_exporter -scrape_uri <fluentd-metrics-endpoint>
```
Note: A change in `-telemetry.address` flag will require changing the port in `-p` flag of `docker run` command as well.

#### Docker image
You can find the latest docker image [here](https://hub.docker.com/r/vect0r/fluentd_exporter/):
```
docker pull vect0r/fluentd_exporter
```

## Grafana dashboard

The following [dashboard](https://grafana.com/dashboards/3522) can be imported into grafana
Screenshot of ![grafana dashboard](https://i.imgur.com/oBY6urR.png)

## Docker

It is intended that this exporter be placed on the host that Fluentd is running from. If you are using fluentd as a log driver for Docker then place this exporter on the host.
Documentation around setting up Fluentd as a logging driver for Docker can be found [here](https://docs.docker.com/engine/admin/logging/fluentd/)

## Contribute

Feel free to open an issue or PR if you have suggestions or ideas about what to add.

## Author

[Burhan Deniz Abdi](http://www.burhan.io/)

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