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jpountz merged 7 commits into from
Oct 12, 2020
Merged

Document standard metadata entries. #61941

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80ba482
Document standard metadata entries.
jpountz Sep 3, 2020
3d9c6c6
more info about gauge vs metric
jpountz Sep 4, 2020
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jpountz Sep 4, 2020
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Apply suggestions from code review
jpountz Oct 8, 2020
3d0f00f
Merge branch 'master' into docs_meta
jpountz Oct 8, 2020
e8e2142
Make `percent` a unit and remove `ratio`.
jpountz Oct 8, 2020
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jpountz Oct 8, 2020
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19 changes: 19 additions & 0 deletions docs/reference/mapping/params/meta.asciidoc
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Expand Up @@ -29,3 +29,22 @@ than or equal to 50.

NOTE: Field metadata is updatable by submitting a mapping update. The metadata
of the update will override the metadata of the existing field.

Elastic products use the following standard metadata entries for fields. You
can follow these same metadata conventions to get a better out-of-the-box
experience with your data.

unit::

The unit associated with a numeric field: `"percent"`, `"byte"` or a
<<time-units,time unit>>. By default, a field does not have a unit.
Only valid for numeric fields. The convention for percents is to use
value `1` to mean `100%`.

metric_type::

The metric type of a numeric field: `"gauge"` or `"counter"`. A gauge is a
single-value measurement that can go up or down over time, such as a
temperature. A counter is a single-value cumulative counter that only goes
up, such as the number of requests processed by a web server. By default,
no metric type is associated with a field. Only valid for numeric fields.