Telegraf Internal Input Plugin

This plugin collects metrics about the telegraf agent and its plugins.

Introduced in: Telegraf v1.2.0 Tags: applications OS support: all

Global configuration options

In addition to the plugin-specific configuration settings, plugins support additional global and plugin configuration settings. These settings are used to modify metrics, tags, and field or create aliases and configure ordering, etc. See the CONFIGURATION.md for more details.

Configuration

# Collect statistics about itself
[[inputs.internal]]
  ## If true, collect telegraf memory stats.
  # collect_memstats = true

  ## If true, collect metrics from Go's runtime.metrics. For a full list see:
  ##   https://pkg.go.dev/runtime/metrics
  # collect_gostats = false

  ## Collect statistics per plugin instance and not per plugin type
  # per_instance = false

Metrics

memstats are collected using the Go runtime framework

• internal_memstats
  • alloc_bytes
  • frees
  • heap_alloc_bytes
  • heap_idle_bytes
  • heap_in_use_bytes
  • heap_objects_bytes
  • heap_released_bytes
  • heap_sys_bytes
  • mallocs
  • num_gc
  • pointer_lookups
  • sys_bytes
  • total_alloc_bytes

agent stats collect aggregate stats on all telegraf plugins.

• internal_agent
  • gather_errors
  • gather_timeouts
  • metrics_dropped
  • metrics_gathered
  • metrics_written

internal_gather stats collect aggregate stats on all input plugins that are of the same input type. They are tagged with input=<plugin_name> version=<telegraf_version> and go_version=<go_build_version>.

• internal_gather
  • gather_time_ns
  • metrics_gathered
  • gather_timeouts

internal_write stats collect aggregate stats on all output plugins that are of the same input type. They are tagged with output=<plugin_name> and version=<telegraf_version>.

• internal_write
  • buffer_limit
  • buffer_size
  • metrics_added
  • metrics_written
  • metrics_dropped
  • metrics_filtered
  • write_time_ns

internal_<plugin_name> are metrics which are defined on a per-plugin basis, and usually contain tags which differentiate each instance of a particular type of plugin and version=<telegraf_version>.

• internal_<plugin_name>
  • individual plugin-specific fields, such as requests counts.

All measurements for specific plugins are tagged with information relevant to each particular plugin and with version=<telegraf_version>.

Example Output

internal_memstats,host=tyrion alloc_bytes=4457408i,sys_bytes=10590456i,pointer_lookups=7i,mallocs=17642i,frees=7473i,heap_sys_bytes=6848512i,heap_idle_bytes=1368064i,heap_in_use_bytes=5480448i,heap_released_bytes=0i,total_alloc_bytes=6875560i,heap_alloc_bytes=4457408i,heap_objects_bytes=10169i,num_gc=2i 1480682800000000000
internal_agent,host=tyrion,go_version=1.12.7,version=1.99.0 metrics_written=18i,metrics_dropped=0i,metrics_gathered=19i,gather_errors=0i,gather_timeouts=0i 1480682800000000000
internal_write,output=file,host=tyrion,version=1.99.0 buffer_limit=10000i,write_time_ns=636609i,metrics_added=18i,metrics_written=18i,buffer_size=0i 1480682800000000000
internal_gather,input=internal,host=tyrion,version=1.99.0 metrics_gathered=19i,gather_time_ns=442114i,gather_timeouts=0i 1480682800000000000
internal_gather,input=http_listener,host=tyrion,version=1.99.0 metrics_gathered=0i,gather_time_ns=167285i,gather_timeouts=0i 1480682800000000000
internal_http_listener,address=:8186,host=tyrion,version=1.99.0 queries_received=0i,writes_received=0i,requests_received=0i,buffers_created=0i,requests_served=0i,pings_received=0i,bytes_received=0i,not_founds_served=0i,pings_served=0i,queries_served=0i,writes_served=0i 1480682800000000000
internal_mqtt_consumer,host=tyrion,version=1.99.0 messages_received=622i,payload_size=37942i 1657282270000000000