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Task
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Resolution: Unresolved
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Major
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None
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When I was testing executing WildFly workloads on a virtual thread, turning on JVM thread pinning logging (see WFLY-19536) revealed pinning happening in CXF code. This issue is to trace working with the CXF community to resolve these issues and get the fixed code into WildFly.
See occurrences of 'onPinned' in https://ci.wildfly.org/repository/download/WF_MainNightlyJobs_StandardLinuxJdk21/446569:id/testsuite/integration/ws/target/wildfly/standalone/log/server.log. Lines in the stack trace annotated with "<== monitor" show where a monitor lock was taken that results in pinning when blocking code executes.
The most common example:
2024-07-18 04:38:37,137 INFO [stdout] (ForkJoinPool-1-worker-1) Thread[#147,ForkJoinPool-1-worker-1,5,CarrierThreads] 2024-07-18 04:38:37,137 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.lang.VirtualThread$VThreadContinuation.onPinned(VirtualThread.java:185) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/jdk.internal.vm.Continuation.onPinned0(Continuation.java:393) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.lang.VirtualThread.parkNanos(VirtualThread.java:631) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.lang.System$2.parkVirtualThread(System.java:2648) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/jdk.internal.misc.VirtualThreads.park(VirtualThreads.java:67) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:408) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.Poller.pollIndirect(Poller.java:137) 2024-07-18 04:38:37,138 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.Poller.poll(Poller.java:102) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.Poller.poll(Poller.java:87) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.NioSocketImpl.park(NioSocketImpl.java:175) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.NioSocketImpl.timedRead(NioSocketImpl.java:280) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.NioSocketImpl.implRead(NioSocketImpl.java:304) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.NioSocketImpl.read(NioSocketImpl.java:346) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.nio.ch.NioSocketImpl$1.read(NioSocketImpl.java:796) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.net.Socket$SocketInputStream.read(Socket.java:1099) 2024-07-18 04:38:37,139 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.io.BufferedInputStream.fill(BufferedInputStream.java:291) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.io.BufferedInputStream.read1(BufferedInputStream.java:347) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.io.BufferedInputStream.implRead(BufferedInputStream.java:420) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.io.BufferedInputStream.read(BufferedInputStream.java:399) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:827) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:759) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1690) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1599) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:531) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream$2.run(URLConnectionHTTPConduit.java:370) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream$2.run(URLConnectionHTTPConduit.java:366) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) java.base/java.security.AccessController.doPrivileged(AccessController.java:571) 2024-07-18 04:38:37,140 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.URLConnectionHTTPConduit$URLConnectionWrappedOutputStream.getResponseCode(URLConnectionHTTPConduit.java:366) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.doProcessResponseCode(HTTPConduit.java:1653) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponseInternal(HTTPConduit.java:1684) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.handleResponse(HTTPConduit.java:1626) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HTTPConduit$WrappedOutputStream.close(HTTPConduit.java:1420) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf@4.0.4//org.apache.cxf.transport.AbstractConduit.close(AbstractConduit.java:56) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HTTPConduit.close(HTTPConduit.java:717) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf.impl//org.apache.cxf.transport.http.HttpClientHTTPConduit.close(HttpClientHTTPConduit.java:115) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf@4.0.4//org.apache.cxf.interceptor.MessageSenderInterceptor$MessageSenderEndingInterceptor.handleMessage(MessageSenderInterceptor.java:63) 2024-07-18 04:38:37,141 INFO [stdout] (ForkJoinPool-1-worker-1) org.apache.cxf@4.0.4//org.apache.cxf.phase.PhaseInterceptorChain.doIntercept(PhaseInterceptorChain.java:307) <== monitors:1
To reproduce build https://github.com/bstansberry/wildfly/tree/pinning_check on SE 21.
- blocks
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WFLY-19563 Support use of virtual threads in the Jakarta Concurrency 3.1. implementation
- Open
- is cloned by
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WFLY-19566 Resolve virtual thread pinning issues in client side Artemis code
- Open
- is incorporated by
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WFLY-19564 Epic: Virtual Threads support in WildFly
- Open
- links to