Fluentd
Overview
The fluentd plugin gathers metrics from plugin endpoint provided by in_monitor plugin. This plugin understands data provided by /api/plugin.json resource (/api/config.json is not covered).
You might need to adjust your fluentd configuration, in order to reduce series cardinality in case your fluentd restarts frequently. Every time fluentd starts, plugin_id
value is given a new random value.
According to fluentd documentation, you are able to add @id
parameter for each plugin to avoid this behaviour and define custom plugin_id
.
example configuration with @id
parameter for http plugin:
<source>
@type http
@id http
port 8888
</source>
Configuration
# Read metrics exposed by fluentd in_monitor plugin
[[inputs.fluentd]]
## This plugin reads information exposed by fluentd (using /api/plugins.json endpoint).
##
## Endpoint:
## - only one URI is allowed
## - https is not supported
endpoint = "http://localhost:24220/api/plugins.json"
## Define which plugins have to be excluded (based on "type" field - e.g. monitor_agent)
exclude = [
"monitor_agent",
"dummy",
]