[jboss-jira] [JBoss JIRA] (WFLY-9900) EJB client occasionally hangs
[
https://issues.jboss.org/browse/WFLY-9900?page=com.atlassian.jira.plugin....
]
Richard Janík commented on WFLY-9900:
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Unfortunately no, the clients are simply stuck in awaitResponse:
{noformat}
"Runner - 565" #638 daemon prio=5 os_prio=0 tid=0x00007feb9841d000 nid=0x7f47 in
Object.wait() [0x00007feaeb593000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:502)
at
org.jboss.ejb.client.EJBClientInvocationContext.awaitResponse(EJBClientInvocationContext.java:866)
- locked <0x00000006826573b0> (a java.lang.Object)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:177)
at org.jboss.ejb.client.EJBInvocationHandler.invoke(EJBInvocationHandler.java:112)
at com.sun.proxy.$Proxy3.getSerialAndIncrement(Unknown Source)
at
org.jboss.smartfrog.clustering.ejb3.StatefulSBProcessorFactoryImpl$EJB3RequestProcessor.processRequest(StatefulSBProcessorFactoryImpl.java:83)
at
org.jboss.smartfrog.loaddriver.CompoundRequestProcessorFactoryImpl$CompoundRequestProcessor.processRequest(CompoundRequestProcessorFactoryImpl.java:52)
at org.jboss.smartfrog.loaddriver.Runner.run(Runner.java:103)
at java.lang.Thread.run(Thread.java:748)
{noformat}
I'll attach the full client and server dumps.
EJB client occasionally hangs
-----------------------------
Key: WFLY-9900
URL: https://issues.jboss.org/browse/WFLY-9900
Project: WildFly
Issue Type: Bug
Components: Clustering, EJB
Affects Versions: 12.0.0.Beta1
Reporter: Richard Janík
Assignee: David Lloyd
Attachments: threaddump-client.txt, threaddump-server1.txt,
threaddump-server2.txt, threaddump-server3.txt, threaddump-server4.txt
Seen in our clustering tests where remote EJB clients invoke beans on 4 servers in
cluster, while each of those is being killed and restarted. This is done in sequence and
there's plenty of time in between the kill/start/kill-another (1 minute).
In two ouf our tests, we saw a small number of clients hang and resist termination at the
end. The scenarios are:
[jvmkill-dist-sync|https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/jo...]
(36 clients)
[shutdown-dist-sync|https://jenkins.hosts.mwqe.eng.bos.redhat.com/hudson/j...]
(1 client)
The hangs are not related to any error or warning message on the server-side. There are
ClosedChannelExceptions on the client side, but these seem to be unrelated as the numbers
of clients reporting the exceptions are not the same (lower) as the numbers of hanging
clients.
No thread dump as I didn't manage to reproduce yet.
Might be related to JBEAP-12074 or JBEAP-13169.
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