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gcp-o11y: add sleep in Observability close() #9972

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merged 3 commits into from
Mar 22, 2023
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gcp-o11y: add sleep in Observability close() #9972

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972ab42
added sleep of 60 secs in observability.close(); to allow metrics and…
DNVindhya Mar 21, 2023
4cc71a4
add sleep only when either metrics or traces enabled
DNVindhya Mar 21, 2023
c323e4f
restore interrupt by setting up interrupt flag of the thread
DNVindhya Mar 21, 2023
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14 changes: 14 additions & 0 deletions gcp-observability/src/main/java/io/grpc/gcp/observability/GcpObservability.java
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Original file line number Diff line number Diff line change
Expand Up @@ -53,11 +53,16 @@
import java.io.IOException;
import java.util.ArrayList;
import java.util.Map;
import java.util.concurrent.TimeUnit;
import java.util.logging.Level;
import java.util.logging.Logger;
import java.util.stream.Collectors;

/** The main class for gRPC Google Cloud Platform Observability features. */
@ExperimentalApi("https://github.com/grpc/grpc-java/issues/8869")
public final class GcpObservability implements AutoCloseable {

private static final Logger logger = Logger.getLogger(GcpObservability.class.getName());
private static final int METRICS_EXPORT_INTERVAL = 30;
@VisibleForTesting
static final ImmutableSet<String> SERVICES_TO_EXCLUDE = ImmutableSet.of(
Expand Down Expand Up @@ -117,6 +122,15 @@ public void close() {
throw new IllegalStateException("GcpObservability already closed!");
}
sink.close();
if (config.isEnableCloudMonitoring() || config.isEnableCloudTracing()) {
try {
// Sleeping before shutdown to ensure all metrics and traces are flushed
Thread.sleep(
TimeUnit.MILLISECONDS.convert(2 * METRICS_EXPORT_INTERVAL, TimeUnit.SECONDS));
} catch (InterruptedException e) {
logger.log(Level.SEVERE, "Caught exception during sleep", e);
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Add Thread.currentThread().interrupt()

}
}
instance = null;
}
}
Expand Down