WIP netty: use composite cumulator for perf flamegraph tests #7
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Jul 5, 2023
The PipeSocket was convenient and avoided real I/O, but the shutdown/close while connecting/handshaking tests were triggering a Socket bug in Java (https://bugs.openjdk.org/browse/JDK-8278326). Using a real socket doesn't trigger the bug because the test stops sharing state with the code under test. Fixes grpc#10228 ``` Details ================== WARNING: ThreadSanitizer: data race (pid=4528) Write of size 1 at 0x0000cfb9d5f4 by thread T36 (mutexes: write M0): #0 java.net.Socket.setCreated()V Socket.java:687 #1 java.net.AbstractPlainSocketImpl.create(Z)V AbstractPlainSocketImpl.java:149 #2 java.net.Socket.createImpl(Z)V Socket.java:477 #3 java.net.Socket.getImpl()Ljava/net/SocketImpl; Socket.java:540 #4 java.net.Socket.setTcpNoDelay(Z)V Socket.java:998 #5 io.grpc.okhttp.OkHttpServerTransport.startIo(Lio/grpc/internal/SerializingExecutor;)V OkHttpServerTransport.java:164 #6 io.grpc.okhttp.OkHttpServerTransport.lambda$start$0(Lio/grpc/internal/SerializingExecutor;)V OkHttpServerTransport.java:159 #7 io.grpc.okhttp.OkHttpServerTransport$$Lambda$56.run()V ?? #8 io.grpc.internal.SerializingExecutor.run()V SerializingExecutor.java:133 #9 java.util.concurrent.ThreadPoolExecutor.runWorker(Ljava/util/concurrent/ThreadPoolExecutor$Worker;)V ThreadPoolExecutor.java:1130 #10 java.util.concurrent.ThreadPoolExecutor$Worker.run()V ThreadPoolExecutor.java:630 #11 java.lang.Thread.run()V Thread.java:830 #12 (Generated Stub) <null> Previous read of size 1 at 0x0000cfb9d5f4 by thread T35 (mutexes: write M1, write M2): #0 java.net.Socket.close()V Socket.java:1512 #1 io.grpc.okhttp.OkHttpServerTransportTest$PipeSocket.close()V OkHttpServerTransportTest.java:1384 #2 io.grpc.okhttp.OkHttpServerTransportTest.clientCloseDuringHandshake()V OkHttpServerTransportTest.java:290 ```
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Feb 27, 2024
As discovered by TSAN, the adsStream field is not synchronized.
```
WARNING: ThreadSanitizer: data race (pid=1625)
Read of size 4 at 0x00009b66fc88 by thread T23 (mutexes: write M0):
#0 io.grpc.xds.ControlPlaneClient.isReady()Z ControlPlaneClient.java:203
#1 io.grpc.xds.ControlPlaneClient.readyHandler()V ControlPlaneClient.java:211
#2 io.grpc.xds.ControlPlaneClient$AdsStream.onReady()V ControlPlaneClient.java:328
#3 io.grpc.xds.GrpcXdsTransportFactory$EventHandlerToCallListenerAdapter.onReady()V GrpcXdsTransportFactory.java:145
#4 io.grpc.PartialForwardingClientCallListener.onReady()V PartialForwardingClientCallListener.java:44
#5 io.grpc.ForwardingClientCallListener.onReady()V ForwardingClientCallListener.java:23
#6 io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onReady()V ForwardingClientCallListener.java:40
#7 io.grpc.PartialForwardingClientCallListener.onReady()V PartialForwardingClientCallListener.java:44
#8 io.grpc.ForwardingClientCallListener.onReady()V ForwardingClientCallListener.java:23
#9 io.grpc.ForwardingClientCallListener$SimpleForwardingClientCallListener.onReady()V ForwardingClientCallListener.java:40
#10 io.grpc.internal.DelayedClientCall$DelayedListener.onReady()V DelayedClientCall.java:497
#11 io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamOnReady.runInternal()V ClientCallImpl.java:781
#12 io.grpc.internal.ClientCallImpl$ClientStreamListenerImpl$1StreamOnReady.runInContext()V ClientCallImpl.java:772
#13 io.grpc.internal.ContextRunnable.run()V ContextRunnable.java:37
#14 io.grpc.internal.SerializingExecutor.run()V SerializingExecutor.java:133
#15 java.util.concurrent.ThreadPoolExecutor.runWorker(Ljava/util/concurrent/ThreadPoolExecutor$Worker;)V ThreadPoolExecutor.java:1130
#16 java.util.concurrent.ThreadPoolExecutor$Worker.run()V ThreadPoolExecutor.java:630
#17 java.lang.Thread.run()V Thread.java:830
#18 (Generated Stub) <null>
Previous write of size 4 at 0x00009b66fc88 by thread T4 (mutexes: write M1, write M2, write M3, write M4, write M5):
#0 io.grpc.xds.ControlPlaneClient$AdsStream.cleanUp()V ControlPlaneClient.java:424
#1 io.grpc.xds.ControlPlaneClient$AdsStream.close(Ljava/lang/Exception;)V ControlPlaneClient.java:418
#2 io.grpc.xds.ControlPlaneClient$1.run()V ControlPlaneClient.java:130
#3 io.grpc.SynchronizationContext.drain()V SynchronizationContext.java:94
#4 io.grpc.SynchronizationContext.execute(Ljava/lang/Runnable;)V SynchronizationContext.java:126
#5 io.grpc.xds.XdsClientImpl.shutdown()V XdsClientImpl.java:207
#6 io.grpc.xds.SharedXdsClientPoolProvider$RefCountedXdsClientObjectPool.returnObject(Ljava/lang/Object;)Lio/grpc/xds/XdsClient; SharedXdsClientPoolProvider.java:144
#7 io.grpc.xds.SharedXdsClientPoolProvider$RefCountedXdsClientObjectPool.returnObject(Ljava/lang/Object;)Ljava/lang/Object; SharedXdsClientPoolProvider.java:102
#8 io.grpc.xds.XdsClientFederationTest.cleanUp()V XdsClientFederationTest.java:86
```
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