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https://issues.apache.org/jira/browse/ARTEMIS-4937?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17930434#comment-17930434
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Justin Bertram commented on ARTEMIS-4937:
-----------------------------------------
After sorting through the attached [^WFLY-19566-monitors.txt] this is what we
have:
{noformat}
[email protected]//org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.createSessionChannel(ClientSessionFactoryImpl.java:1533)
<== monitors:1
[email protected]//org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.getConnection(ClientSessionFactoryImpl.java:1084)
<== monitors:1
[email protected]//org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:718)
<== monitors:1
[email protected]//org.apache.activemq.artemis.core.protocol.core.impl.ChannelImpl.sendBlocking(ChannelImpl.java:524)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQConnection.createNonXASession(ActiveMQConnection.java:186)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:913)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:949)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQConnection.stop(ActiveMQConnection.java:327)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQJMSContext.close(ActiveMQJMSContext.java:232)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQJMSContext.close(ActiveMQJMSContext.java:233)
<== monitors:1
[email protected]//org.apache.activemq.artemis.jms.client.ActiveMQXAConnection.createXASession(ActiveMQXAConnection.java:53)
<== monitors:1
[email protected]//org.apache.activemq.artemis.ra.ActiveMQRASession.closeSession(ActiveMQRASession.java:1334)
<== monitors:1
[email protected]//org.apache.activemq.artemis.ra.ActiveMQRASessionFactoryImpl.allocateConnection(ActiveMQRASessionFactoryImpl.java:792)
<== monitors:1
[email protected]//org.apache.activemq.artemis.ra.ActiveMQRASessionFactoryImpl.close(ActiveMQRASessionFactoryImpl.java:594)
<== monitors:1
{noformat}
> Resolve virtual thread pinning issues in client side Artemis code
> -----------------------------------------------------------------
>
> Key: ARTEMIS-4937
> URL: https://issues.apache.org/jira/browse/ARTEMIS-4937
> Project: ActiveMQ Artemis
> Issue Type: Bug
> Components: Broker
> Affects Versions: 2.35.0
> Reporter: Emmanuel Hugonnet
> Assignee: Justin Bertram
> Priority: Major
> Attachments: WFLY-19566-monitors.txt
>
>
> When I was testing executing WildFly workloads on a virtual thread, turning
> on JVM thread pinning logging (see WFLY-19536) revealed pinning happening in
> client-side Artemis code (e.g. sending JMS messages). This issue is to trace
> working with the Artemis community to resolve these issues and get the fixed
> code into WildFly.
> An example:
> {noformat}
> 2024-07-18 04:55:23,274 INFO [stdout] (ForkJoinPool-1-worker-1)
> Thread[#297,ForkJoinPool-1-worker-1,5,CarrierThreads]
> 2024-07-18 04:55:23,275 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.lang.VirtualThread$VThreadContinuation.onPinned(VirtualThread.java:185)
> 2024-07-18 04:55:23,275 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/jdk.internal.vm.Continuation.onPinned0(Continuation.java:393)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.lang.VirtualThread.parkNanos(VirtualThread.java:631)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.lang.System$2.parkVirtualThread(System.java:2648)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/jdk.internal.misc.VirtualThreads.park(VirtualThreads.java:67)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.util.concurrent.locks.LockSupport.parkNanos(LockSupport.java:267)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.acquire(AbstractQueuedSynchronizer.java:756)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.util.concurrent.locks.AbstractQueuedSynchronizer.tryAcquireSharedNanos(AbstractQueuedSynchronizer.java:1126)
> 2024-07-18 04:55:23,276 INFO [stdout] (ForkJoinPool-1-worker-1)
> java.base/java.util.concurrent.CountDownLatch.await(CountDownLatch.java:276)
> 2024-07-18 04:55:23,277 INFO [stdout] (ForkJoinPool-1-worker-1)
> [email protected]//org.apache.activemq.artemis.core.client.impl.ClientSessionFactoryImpl.waitForTopology(ClientSessionFactoryImpl.java:544)
> 2024-07-18 04:55:23,277 INFO [stdout] (ForkJoinPool-1-worker-1)
> [email protected]//org.apache.activemq.artemis.core.client.impl.ServerLocatorImpl.createSessionFactory(ServerLocatorImpl.java:773)
> 2024-07-18 04:55:23,277 INFO [stdout] (ForkJoinPool-1-worker-1)
> [email protected]//org.apache.activemq.artemis.jms.client.ActiveMQConnectionFactory.createConnectionInternal(ActiveMQConnectionFactory.java:913)
> <== monitors:1{noformat}
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