Hey,
I had a test failure (race condition, saw it only once) where a jetty client
makes a request on a jetty server and only gets an incomplete response back.
The jetty client does an asynchronous POST and consumes the response using an
InputStreamResponseListener.
try (InputStream inputStream = listener.getInputStream()) {
long dataReceived = 0;
byte[] buffer = new byte[...];
int read = inputStream.read(buffer);
while (read >= 0) {
dataReceived += read;
read = inputStream.read(buffer);
}
This loop ends without exceptions. However, the amount of data in the response
(dataReceived) is > 0, but a lot smaller than expected which makes the test
fail.
Important to know is that at the moment of this failure, the server was killed
(as part of the test). Other requests that were ongoing get exceptions like the
ones below. I understand and fully expect these exceptions. What I don't
understand is why the request that was consuming its response didn't get any.
Is it wrong from me to assume I'll always get some exception in case the server
is killed?
I assume that our server-side resource is working as it should (so it completes
when the entire response has been sent to the output); so this one doesn't
count.
Note that the server does NOT fill in the CONTENT_LENGTH of the response; as
such the client doesn't know when the stream will end. Is it possible that the
client interprets closure of the response stream sometimes as "ok, this is the
end" and doesn't throw exceptions?
Here are some of the other exceptions from other (but different) requests:
[2022-04-12 03:09:49,154] [ERROR] [] [http-requests] [] -
1649732989067,87,GET,http://test-product:8080/test-product/v1/clustersingleton/clusterinfo/clusterInfoProvider?id=554d75d7-5c16-47e4-95e9-c0b110d1ec40-3484&replyAfter=110,EOFException,"HttpConnectionOverHTTP@48aa14a1::SocketChannelEndPoint@4c95996c{l=/10.233.90.85:35120,r=test-product/10.233.45.8:8080,ISHUT,fill=-,flush=-,to=85/29123}{io=0/0,kio=0,kro=1}->HttpConnectionOverHTTP@48aa14a1(l:/10.233.90.85:35120
<->
r:test-product/10.233.45.8:8080,closed=false)=>HttpChannelOverHTTP@9971e9a(exchange=HttpExchange@20c3f0a6{req=HttpRequest[GET
/test-product/v1/clustersingleton/clusterinfo/clusterInfoProvider
HTTP/1.1]@38d4f703[TERMINATED/null] res=HttpResponse[null 0
null]@586a478c[PENDING/null]})[send=HttpSenderOverHTTP@69b8e1d5(req=QUEUED,snd=COMPLETED,failure=null)[HttpGenerator@56417a84{s=START}],recv=HttpReceiverOverHTTP@4932f3a0(rsp=IDLE,failure=null)[HttpParser{s=CLOSED,0
of -1}]]"
at
org.eclipse.jetty.client.http.HttpReceiverOverHTTP.earlyEOF(HttpReceiverOverHTTP.java:376)
at
org.eclipse.jetty.client.http.HttpReceiverOverHTTP.process(HttpReceiverOverHTTP.java:181)
at
org.eclipse.jetty.client.http.HttpChannelOverHTTP.receive(HttpChannelOverHTTP.java:131)
at
org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:311)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:105)
at
org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.runTask(EatWhatYouKill.java:338)
at
org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:1614)
and
java.io.IOException: org.eclipse.jetty.io.EofException
at
org.eclipse.jetty.client.util.OutputStreamContentProvider$DeferredOutputStream.flush(OutputStreamContentProvider.java:151)
...
Caused by: java.io.IOException: Connection reset by peer
at sun.nio.ch.IOUtil.write(IOUtil.java:148)
This test failure was exceptional; I suspect some race condition on the server.
Note: I was using Jetty 9.4.43.v20210629 in this test. (I've now upgraded to
9.4.46)
Thanks,
Bert
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