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Add data format section and a description of timestamps #111

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merged 5 commits into from
Jun 13, 2019
Merged

Add data format section and a description of timestamps #111

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c5d5b98
Add section on data formats. Fixes #85
danielkhan Jun 12, 2019
f9f29fb
merge from master
danielkhan Jun 12, 2019
54b344d
Removed wording on tuples
danielkhan Jun 12, 2019
ab4b444
Removed examples
danielkhan Jun 12, 2019
342b676
Merge branch 'master' into dkhan-add-timestamp-description
SergeyKanzhelev Jun 13, 2019
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18 changes: 18 additions & 0 deletions specification/tracing-api.md
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Expand Up @@ -8,6 +8,24 @@ Tracing API consist of a few main classes:
- `SpanData` is an immutable object that is used to report out-of-band completed
spans. See [SpanData](#spandata) section.

## Data types
While languages and platforms have different ways of representing data,
this section defines some generic requirements for this API.

### Time
OpenTelemetry can operate on time values up to nanosecond (ns) precision.
The representation of those values is language specific.

#### Timestamp
A timestamp is the time elapsed since the Unix epoch.
* The minimal precision is milliseconds.
* The maximal precision is nanoseconds.

#### Duration
A duration is the elapsed time between two events.
* The minimal precision is milliseconds.
* The maximal precision is nanoseconds.

## Tracer

### Obtaining a tracer
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