prometheus: Ignore unknown instrument units #1348
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## Motivation
The [metric unit semantic conventions] suggest that integer counts
should use annotations (e.g. `{packet}`), which breaks the current unit
appending logic as they are not properly escaped.
[metric unit semantic conventions]: https://github.com/open-telemetry/semantic-conventions/blob/v1.23.0/docs/general/metrics.md#instrument-units
## Solution
Ignore unknown units (including annotations) as other language
implementations currently do. This change also removes the `$` mapping
as it is not UCUM.
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TommyCpp
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Nov 7, 2023
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@TommyCpp yeah this seems to be the common choice currently (e.g. go, java, etc) |
TommyCpp
approved these changes
Nov 8, 2023
jtescher
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Nov 13, 2023
## Motivation
The [metric unit semantic conventions] suggest that integer counts
should use annotations (e.g. `{packet}`), which breaks the current unit
appending logic as they are not properly escaped.
[metric unit semantic conventions]: https://github.com/open-telemetry/semantic-conventions/blob/v1.23.0/docs/general/metrics.md#instrument-units
## Solution
Ignore unknown units (including annotations) as other language
implementations currently do. This change also removes the `$` mapping
as it is not UCUM.
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Motivation
The metric unit semantic conventions suggest that integer counts should use annotations (e.g.
{packet}), which breaks the current unit appending logic as they are not properly escaped.Solution
Ignore unknown units (including annotations) as other language implementations currently do. This change also removes the
$mapping as it is not UCUM.Merge requirement checklist
CHANGELOG.mdfiles updated for non-trivial, user-facing changes