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Bug
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Resolution: Not A Defect
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Minor
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None
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- Jenkins 2.73.3
- Kubernetes plugin 1.1
We're experiencing an intermittent failure in our builds:
java.net.ProtocolException: Expected HTTP 101 response but was '500 Internal Server Error' at okhttp3.internal.ws.RealWebSocket.checkResponse(RealWebSocket.java:216) at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:183) at okhttp3.RealCall$AsyncCall.execute(RealCall.java:141) at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) Cannot contact jenkins-slave-lt44k-dlck7: io.fabric8.kubernetes.client.KubernetesClientException: error dialing backend: ssh: rejected: connect failed (Connection refused) java.io.EOFException at okio.RealBufferedSource.require(RealBufferedSource.java:60) at okio.RealBufferedSource.readByte(RealBufferedSource.java:73) at okhttp3.internal.ws.WebSocketReader.readHeader(WebSocketReader.java:113) at okhttp3.internal.ws.WebSocketReader.processNextFrame(WebSocketReader.java:97) at okhttp3.internal.ws.RealWebSocket.loopReader(RealWebSocket.java:262) at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:201) at okhttp3.RealCall$AsyncCall.execute(RealCall.java:141) at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) java.net.ProtocolException: Expected HTTP 101 response but was '500 Internal Server Error' at okhttp3.internal.ws.RealWebSocket.checkResponse(RealWebSocket.java:216) at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:183) at okhttp3.RealCall$AsyncCall.execute(RealCall.java:141) at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745) java.net.ProtocolException: Expected HTTP 101 response but was '500 Internal Server Error' at okhttp3.internal.ws.RealWebSocket.checkResponse(RealWebSocket.java:216) at okhttp3.internal.ws.RealWebSocket$2.onResponse(RealWebSocket.java:183) at okhttp3.RealCall$AsyncCall.execute(RealCall.java:141) at okhttp3.internal.NamedRunnable.run(NamedRunnable.java:32) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at java.lang.Thread.run(Thread.java:745)
I don't know how to reproduce it because it only happens rarely. I can confirm that it happens only in our larger builds, which create 9 containers per pod and run for more than 8 minutes.
