From d24c2942cbac2ed0b2fb995185c60c47ab43f861 Mon Sep 17 00:00:00 2001
From: Alan West <3676547+alanwest@users.noreply.github.com>
Date: Mon, 21 Mar 2022 23:08:08 -0700
Subject: [PATCH] Specify MetricReader defaults for stdout MetricExporter
 (#2415)

---
 CHANGELOG.md                                  | 3 +++
 specification/metrics/sdk_exporters/stdout.md | 3 ++-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index ecd9a836c88..72ecbf69dc1 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -33,6 +33,9 @@ release.
   ([#2379](/~https://github.com/open-telemetry/opentelemetry-specification/pull/2379)).
 - Clarify that MetricReader has one-to-one mapping to MeterProvider.
   ([#2406](/~https://github.com/open-telemetry/opentelemetry-specification/pull/2406)).
+- Specify default configuration for a periodic metric reader that is associated with
+  the stdout metric exporter.
+  ([#2415](/~https://github.com/open-telemetry/opentelemetry-specification/pull/2415)).
 - Clarify the manner in which aggregation and temporality preferences
   are encoded via MetricReader parameters "on the basis of instrument
   kind".  Rename the environment variable
diff --git a/specification/metrics/sdk_exporters/stdout.md b/specification/metrics/sdk_exporters/stdout.md
index 1dc187cb18a..ac81923da74 100644
--- a/specification/metrics/sdk_exporters/stdout.md
+++ b/specification/metrics/sdk_exporters/stdout.md
@@ -18,4 +18,5 @@ If a language provides a mechanism to automatically configure a
 exporter (e.g., using the [`OTEL_METRICS_EXPORTER` environment
 variable](../../sdk-environment-variables.md#exporter-selection)), by
 default the exporter MUST be paired with a [periodic exporting
-MetricReader](../sdk.md#periodic-exporting-metricreader).
+MetricReader](../sdk.md#periodic-exporting-metricreader)
+with a default `exportIntervalMilliseconds` of 10000.