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doc(metrics): Metric tags can only have a single value (#1307)
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jjbayer authored Jun 12, 2024
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5 changes: 2 additions & 3 deletions src/docs/sdk/metrics.mdx
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Expand Up @@ -43,9 +43,8 @@ exist:
* **Background Aggregation:** SDKs are encouraged to defer flushing and aggregation
into a background thread. For SDKs where `fork()` is to be expected, the background
thread needs to ensure it restarts after fork (eg: python).
* **Tagging:** metrics are tagged by key value pairs, where each key can have more
than one value. Both keys and values are limited to strings, but the SDK can
expose other types if it has a reasonable way to stringify these.
* **Tagging:** metrics can be tagged with a unique key and an optional value for each key. Both keys and values are limited to strings,
but the SDK can expose other types if it has a reasonable way to stringify these.

In abstract terms the aggregator is recommended to look a bit like this:

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