[metrics] Also flush DeltaProducer on ExportNow

The internal delta producer needs to be flushed, otherwise you might see stale metrics exported on ExportNow().
charleslai2000 · Sep 28, 2022 · 367d732 · 367d732
1 parent 92c2d75
commit 367d732
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/thirdparty/patches/opencensus-cpp-shutdown-api.patch b/thirdparty/patches/opencensus-cpp-shutdown-api.patch
@@ -85,7 +85,7 @@ diff --git opencensus/stats/internal/stats_exporter.cc opencensus/stats/internal
 index 43ddbc7..37b4ae1 100644
 --- opencensus/stats/internal/stats_exporter.cc
 +++ opencensus/stats/internal/stats_exporter.cc
-@@ -95,25 +95,56 @@ void StatsExporterImpl::ClearHandlersForTesting() {
+@@ -95,25 +95,57 @@ void StatsExporterImpl::ClearHandlersForTesting() {
  }
 
  void StatsExporterImpl::StartExportThread() EXCLUSIVE_LOCKS_REQUIRED(mu_) {
@@ -140,6 +140,7 @@ index 43ddbc7..37b4ae1 100644
 +}
 +
 +void StatsExporter::ExportNow() {
++ DeltaProducer::Get()->Flush();
 + StatsExporterImpl::Get()->Export();
 +}
 +