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Fluentd monitoring with Netdata

Fluentd is an open source data collector for unified logging layer.

This module will monitor one or more Fluentd servers, depending on your configuration. It gathers metrics from plugin endpoint provided by in_monitor plugin.

Requirements

  • fluentd with enabled monitoring agent

Metrics

All metrics have "fluentd." prefix.

MetricScopeDimensionsUnits
retry_countglobala dimension per plugincount
buffer_queue_lengthglobala dimension per pluginqueue_length
buffer_total_queued_sizeglobala dimension per pluginqueued_size

Configuration

Edit the go.d/fluentd.conf configuration file using edit-config from the Netdata config directory, which is typically at /etc/netdata.

cd /etc/netdata # Replace this path with your Netdata config directory
sudo ./edit-config go.d/fluentd.conf

Needs only url. Here is an example for 2 servers:

jobs:
- name: local
url: http://127.0.0.1:24220

- name: local_with_filtering
url: http://127.0.0.1:24220
permit_plugin_id: '!monitor_agent !dummy *'

- name: remote
url: http://203.0.113.10:24220

By default this module collects statistics for all plugins. Filter plugins syntax: simple patterns.

For all available options please see module configuration file.

Troubleshooting

To troubleshoot issues with the fluentd collector, run the go.d.plugin with the debug option enabled. The output should give you clues as to why the collector isn't working.

  • Navigate to the plugins.d directory, usually at /usr/libexec/netdata/plugins.d/. If that's not the case on your system, open netdata.conf and look for the plugins setting under [directories].

    cd /usr/libexec/netdata/plugins.d/
  • Switch to the netdata user.

    sudo -u netdata -s
  • Run the go.d.plugin to debug the collector:

    ./go.d.plugin -d -m fluentd

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