Value Counter Aggregator Plugin
This plugin counts the occurrence of unique values in fields and emits the
counter once every period with the field-names being suffixed by the unique
value converted to string.
The fields to be counted must be configured using the fields setting,
otherwise no field will be counted and no metric is emitted.
This plugin is useful to e.g. count the occurrances of HTTP status codes or
other categorical values in the defined period.
Counting fields with a high number of potential values may produce a significant amounts of new fields and results in an increased memory usage. Take care to only count fields with a limited set of values.
Introduced in: Telegraf v1.8.0 Tags: statistics OS support: all
Global configuration options
Plugins support additional global and plugin configuration settings for tasks such as modifying metrics, tags, and fields, creating aliases, and configuring plugin ordering. See CONFIGURATION.md for more details.
Configuration
# Count the occurrence of values in fields.
[[aggregators.valuecounter]]
## General Aggregator Arguments:
## The period on which to flush & clear the aggregator.
# period = "30s"
## If true, the original metric will be dropped by the
## aggregator and will not get sent to the output plugins.
# drop_original = false
## The fields for which the values will be counted
fields = ["status"]Measurements & Fields
- measurement1
- field_value1
- field_value2
Tags
No tags are applied by this aggregator.
Example Output
Example for parsing a HTTP access log.
telegraf.conf:
[[inputs.logparser]]
files = ["/tmp/tst.log"]
[inputs.logparser.grok]
patterns = ['%{DATA:url:tag} %{NUMBER:response:string}']
measurement = "access"
[[aggregators.valuecounter]]
namepass = ["access"]
fields = ["response"]/tmp/tst.log
/some/path 200
/some/path 401
/some/path 200access,url=/some/path,path=/tmp/tst.log,host=localhost.localdomain response="200" 1511948755991487011
access,url=/some/path,path=/tmp/tst.log,host=localhost.localdomain response="401" 1511948755991522282
access,url=/some/path,path=/tmp/tst.log,host=localhost.localdomain response="200" 1511948755991531697
access,path=/tmp/tst.log,host=localhost.localdomain,url=/some/path response_200=2i,response_401=1i 1511948761000000000Was this page helpful?
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