Export fails during shutdown of the JVM with GrpcExporter

[kelunik]

Describe the bug

Export fails during shutdown of the JVM.

Steps to reproduce

I'm using a auto-configured OpenTelemetrySdk instance, so shutdown should happen automatically according to the documentation. I've confirmed that by seeing a log message about multiple shutdowns if I call shutdown manually.

What did you expect to see?

No error messages logged.

What did you see instead?

Different error messages get logged, here's one of them:

ERROR io.opentelemetry.exporter.internal.grpc.GrpcExporter: Socket closed

java.net.SocketException: Socket closed
	at java.base/sun.nio.ch.NioSocketImpl.beginConnect(NioSocketImpl.java:498)
	at java.base/sun.nio.ch.NioSocketImpl.connect(NioSocketImpl.java:580)
	at java.base/java.net.SocksSocketImpl.connect(SocksSocketImpl.java:327)
	at java.base/java.net.Socket.connect(Socket.java:751)
	at okhttp3.internal.platform.Platform.connectSocket(Platform.kt:128)
	at okhttp3.internal.connection.RealConnection.connectSocket(RealConnection.kt:295)
	at okhttp3.internal.connection.RealConnection.connect(RealConnection.kt:207)
	at okhttp3.internal.connection.ExchangeFinder.findConnection(ExchangeFinder.kt:226)
	at okhttp3.internal.connection.ExchangeFinder.findHealthyConnection(ExchangeFinder.kt:106)
	at okhttp3.internal.connection.ExchangeFinder.find(ExchangeFinder.kt:74)
	at okhttp3.internal.connection.RealCall.initExchange$okhttp(RealCall.kt:255)
	at okhttp3.internal.connection.ConnectInterceptor.intercept(ConnectInterceptor.kt:32)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.cache.CacheInterceptor.intercept(CacheInterceptor.kt:95)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.http.BridgeInterceptor.intercept(BridgeInterceptor.kt:83)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at okhttp3.internal.http.RetryAndFollowUpInterceptor.intercept(RetryAndFollowUpInterceptor.kt:76)
	at okhttp3.internal.http.RealInterceptorChain.proceed(RealInterceptorChain.kt:109)
	at io.opentelemetry.exporter.sender.okhttp.internal.RetryInterceptor.intercept(RetryInterceptor.java:96)

What version and what artifacts are you using?
Artifacts: opentelemetry-api, opentelemetry-sdk, opentelemetry-exporter-otlp, opentelemetry-sdk-extension-autoconfigure, opentelemetry-resources (2.17.1-alpha)
Version: 1.51.0
How did you reference these artifacts?

<project>
   <dependencyManagement>
      <dependency>
            <groupId>io.opentelemetry</groupId>
            <artifactId>opentelemetry-bom</artifactId>
            <!-- 1.51.0 is the last version with opentelemetry-exporter-otlp depending on okhttp 4.x -->
            <version>1.51.0</version>
            <type>pom</type>
            <scope>import</scope>
         </dependency>
   </dependencyManagement>
</project>

<project>
   <dependencies>
      <dependency>
         <groupId>io.opentelemetry</groupId>
         <artifactId>opentelemetry-api</artifactId>
      </dependency>
      <dependency>
         <groupId>io.opentelemetry</groupId>
         <artifactId>opentelemetry-sdk</artifactId>
      </dependency>
      <dependency>
         <groupId>io.opentelemetry</groupId>
         <artifactId>opentelemetry-sdk-extension-autoconfigure</artifactId>
      </dependency>
      <dependency>
         <groupId>io.opentelemetry.instrumentation</groupId>
         <artifactId>opentelemetry-resources</artifactId>
      </dependency>
      <dependency>
         <groupId>io.opentelemetry</groupId>
         <artifactId>opentelemetry-exporter-otlp</artifactId>
      </dependency>
   </dependencies>
</project>

Environment
Compiler: Corretto 21.0.8
OS: Linux

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[breedx-splk]

Correct -- you should not need to call shutdown manually. Was the sdk successfully exporting data prior to the jvm being shut down? I could possibly see this being an edge case where the jvm is being shut down before the grpc exporter has ever connected. I dunno.

Can you put together a small sample repo that reliably reproduces this?

[github-actions]

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