84 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
			
		
		
	
	
			84 lines
		
	
	
		
			2.8 KiB
		
	
	
	
		
			Markdown
		
	
	
	
# Internal Input Plugin
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The `internal` plugin collects metrics about the telegraf agent itself.
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Note that some metrics are aggregates across all instances of one type of
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plugin.
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### Configuration:
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```toml
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# Collect statistics about itself
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[[inputs.internal]]
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  ## If true, collect telegraf memory stats.
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  # collect_memstats = true
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```
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### Measurements & Fields:
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memstats are taken from the Go runtime: https://golang.org/pkg/runtime/#MemStats
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- internal\_memstats
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    - alloc\_bytes
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    - frees
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    - heap\_alloc\_bytes
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    - heap\_idle\_bytes
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    - heap\_in\_use\_bytes
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    - heap\_objects\_bytes
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    - heap\_released\_bytes
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    - heap\_sys\_bytes
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    - mallocs
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    - num\_gc
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    - pointer\_lookups
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    - sys\_bytes
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    - total\_alloc\_bytes
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agent stats collect aggregate stats on all telegraf plugins.
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- internal\_agent
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    - gather\_errors
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    - metrics\_dropped
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    - metrics\_gathered
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    - metrics\_written
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internal\_gather stats collect aggregate stats on all input plugins
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that are of the same input type. They are tagged with `input=<plugin_name>`.
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- internal\_gather
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    - gather\_time\_ns
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    - metrics\_gathered
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internal\_write stats collect aggregate stats on all output plugins
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that are of the same input type. They are tagged with `output=<plugin_name>`.
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- internal\_write
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    - buffer\_limit
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    - buffer\_size
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    - metrics\_written
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    - metrics\_filtered
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    - write\_time\_ns
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internal\_\<plugin\_name\> are metrics which are defined on a per-plugin basis, and
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usually contain tags which differentiate each instance of a particular type of
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plugin.
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- internal\_\<plugin\_name\>
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    - individual plugin-specific fields, such as requests counts.
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### Tags:
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All measurements for specific plugins are tagged with information relevant
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to each particular plugin.
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### Example Output:
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```
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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
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internal_agent,host=tyrion metrics_written=18i,metrics_dropped=0i,metrics_gathered=19i,gather_errors=0i 1480682800000000000
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internal_write,output=file,host=tyrion buffer_limit=10000i,write_time_ns=636609i,metrics_written=18i,buffer_size=0i 1480682800000000000
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internal_gather,input=internal,host=tyrion metrics_gathered=19i,gather_time_ns=442114i 1480682800000000000
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internal_gather,input=http_listener,host=tyrion metrics_gathered=0i,gather_time_ns=167285i 1480682800000000000
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internal_http_listener,address=:8186,host=tyrion 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
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```
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