Rahul Patel

Add support for exemplars

4

For histogram aggregation add support for collecting at least one SpanContext for each histogram bucket. This is essentially, [exemplars](https://github.com/open-telemetry/opentelemetry-proto/blob/e76584d22418e37ae9a1ee782ce56ae7e2651ccf/opentelemetry/proto/metrics/v1/metrics.proto#L269) in metrics proto. Although exemplars are not limited to SpanContext.

SpanID is not random

1

Make SpanID random, similar to [open-telemetry](https://github.com/open-telemetry/opentelemetry-go/blob/master/sdk/trace/id_generator.go#L34) /cc @odeke-em

Add exemplars for ochttp plugin similar to ocgrpc plugin.

1

The ocgrpc plugin [records with an exemplar ](https://github.com/census-instrumentation/opencensus-go/blob/84d38db2b42a4fc1eebad7b32616e8f4bd48bd76/plugin/ocgrpc/stats_common.go#L146-L152)but the ochttp [does not.](https://github.com/census-instrumentation/opencensus-go/blob/84d38db2b42a4fc1eebad7b32616e8f4bd48bd76/plugin/ochttp/server.go#L165)

Provide basic view set for GRPC metrics

1

Create equivalent View Set for gRPC in go . See [reference](https://github.com/census-instrumentation/opencensus-java/pull/1634) implementation in java.

Add RPC STARTED COUNT for gRPC call

1

Add support for GRPC_CLIENT_STARTED_RPCS. Required for #1009.

For specification there is an [issue](https://github.com/census-instrumentation/opencensus-specs/issues/9) in specs repo. This issue is open to track the implementation in go once the spec is finalized.

provide a method to extract response length for http servlet.

4

In certain cases Content-Length header is not set in the response. In those case message size will not be recorded on the server side using opencensus-contrib-http-servlet. However some of the...

exporter/stackdriver: error posting too frequent when >1 pod reports same metrics,

2

On GKE deployment if more than one pod reports same metrics then SD backend rejects data points with the reason ""rpc error: code = InvalidArgument desc = One or more...

describe process to add/remove owners for all opencensus related repos.

stats: data sent to exporters keeps growing over time

2

The issue was opened originally on go repo but it is applicable to all languages. Hence opening an issue here. [original issue ](https://github.com/census-instrumentation/opencensus-go/issues/968)