Richard Achmatowicz created WFLY-4234:
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Summary: EjbSuspendInterceptor doesn't play well with undeploy
Key: WFLY-4234
URL:
https://issues.jboss.org/browse/WFLY-4234
Project: WildFly
Issue Type: Bug
Components: EJB
Affects Versions: 9.0.0.Alpha1
Reporter: Richard Achmatowicz
Assignee: Stuart Douglas
The scenario is performing undeployment of an EJB application in the presence of incoming
requests.
If my understanding of the suspend/resume mechanism is correct, in the ideal case,
performing an undeployment should disable invocations arriving after undeployment has been
initiated, and also allow requests active at undeployment initiation some time to
complete.
In the clustering integration test RemoteFailoverTestCase, I am seeing failures in which
the foloowing sequence of events occurs:
- an EJB invocation on EJB SFSB X gets past the EJBSuspendInterceptor
- undeployment is initiated and suspend is called on the ControlPoint for X
- undeployment proceeds, removing certain resources required for the invocation
- the active invocation fails due to resources not being available
Here is one such example:
{code}
[0m14:22:04,459 INFO [org.jboss.ejb.client] (main) JBoss EJB Client version 2.0.1.Final
14:22:04,485 INFO [org.jboss.ejb.client.remoting] (Remoting
"config-based-ejb-client-endpoint" task-5) EJBCLIENT000017: Received server
version 2 and marshalling strategies [river]
14:22:04,492 INFO [org.jboss.ejb.client.remoting] (main) EJBCLIENT000013: Successful
version handshake completed for receiver context
EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@2ba6ac4c,
receiver=Remoting connection EJB receiver
[connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection(a)4b79c7f7,channel=jboss.ejb,nodename=node-0]}
on channel Channel ID ad5ee733 (outbound) of Remoting connection 29cd434b to
/127.0.0.1:8080
[0m14:22:04,500 INFO [stdout] (EJB default - 1) ControlPoint: beginRequest called
[0m14:22:04,529 INFO [org.jboss.ejb.client.remoting] (Remoting
"config-based-ejb-client-endpoint" task-15) EJBCLIENT000017: Received server
version 2 and marshalling strategies [river]
14:22:04,530 INFO [org.jboss.ejb.client.remoting]
(ejb-client-cluster-node-connection-creation-3-thread-2) EJBCLIENT000013: Successful
version handshake completed for receiver context
EJBReceiverContext{clientContext=org.jboss.ejb.client.EJBClientContext@2ba6ac4c,
receiver=Remoting connection EJB receiver
[connection=org.jboss.ejb.client.remoting.ConnectionPool$PooledConnection(a)74f6ab8a,channel=jboss.ejb,nodename=node-1]}
on channel Channel ID d24c9830 (outbound) of Remoting connection 759d3b52 to
/127.0.0.1:8180
[0m14:22:04,542 INFO [org.jboss.ejb.client] (EJB default - 1) JBoss EJB Client version
2.0.1.Final
[0m[0m14:22:04,560 INFO [stdout] (EJB default - 1) ControlPoint: requestComplete
called
[0m[0m14:22:09,682 INFO [stdout] (EJB default - 2) ControlPoint: beginRequest called
[0m[0m14:22:09,702 INFO [stdout] (EJB default - 2) ControlPoint: requestComplete
called
[0mCLIENT: making invocation on bean: value = 1
[0m14:22:09,710 INFO [stdout] (EJB default - 3) ControlPoint: beginRequest called
[0m[0m14:22:09,715 INFO [stdout] (EJB default - 3) ControlPoint: requestComplete
called
[0mCLIENT: made invocation on bean [ node-0 ]: new value = 2
14:22:09,717 INFO [org.jboss.as.test.clustering.NodeUtil] (main) Undeploying
deployment=deployment-0
CLIENT: making invocation on bean: value = 2
[0m14:22:09,728 INFO [stdout] (EJB default - 4) ControlPoint: beginRequest called
[0m[0m14:22:09,730 INFO [stdout] (ServerService Thread Pool -- 29) EJBComponent:
stopping remote-failover-test:remote-failover-test:SlowToDestroyStatefulIncrementorBean
[0m[0m14:22:09,730 INFO [stdout] (ServerService Thread Pool -- 31) EJBComponent:
stopping remote-failover-test:remote-failover-test:StatefulIncrementorBean
[0m[0m14:22:09,730 INFO [stdout] (ServerService Thread Pool -- 67) EJBComponent:
stopping remote-failover-test:remote-failover-test:SecureStatelessIncrementorBean
[0m[0m14:22:09,730 INFO [stdout] (ServerService Thread Pool -- 31) ControlPoint: pause
called
[0m[0m14:22:09,730 INFO [stdout] (ServerService Thread Pool -- 4) EJBComponent:
stopping remote-failover-test:remote-failover-test:StatelessIncrementorBean
[0m[0m14:22:09,731 INFO [stdout] (ServerService Thread Pool -- 29) ControlPoint: pause
called
[0m[0m14:22:09,731 INFO [stdout] (ServerService Thread Pool -- 11) EJBComponent:
stopping remote-failover-test:remote-failover-test:ClientIncrementorBean
[0m[0m14:22:09,731 INFO [stdout] (ServerService Thread Pool -- 4) ControlPoint: pause
called
[0m[0m14:22:09,732 INFO [stdout] (ServerService Thread Pool -- 67) ControlPoint: pause
called
[0m[0m14:22:09,732 INFO [stdout] (ServerService Thread Pool -- 11) ControlPoint: pause
called
[0m[0m14:22:09,733 INFO [org.infinispan.eviction.impl.PassivationManagerImpl]
(ServerService Thread Pool -- 29) ISPN000029: Passivating all entries to disk
[0m[0m14:22:09,735 INFO [stdout] (EJB default - 4) ControlPoint: requestComplete
called
[0m[31m14:22:09,735 ERROR [org.jboss.as.ejb3] (EJB default - 4) WFLYEJB0150: Could not
write method invocation failure for method public abstract
org.jboss.as.test.clustering.cluster.ejb.remote.bean.Result
org.jboss.as.test.clustering.cluster.ejb.remote.bean.Incrementor.increment() on bean named
SlowToDestroyStatefulIncrementorBean for appname modulename remote-failover-test
distinctname due to: java.lang.NullPointerException
at
org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.getWeakAffinity(MethodInvocationMessageHandler.java:269)
at
org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler.access$500(MethodInvocationMessageHandler.java:69)
at
org.jboss.as.ejb3.remote.protocol.versionone.MethodInvocationMessageHandler$1.run(MethodInvocationMessageHandler.java:237)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
at java.util.concurrent.FutureTask.run(FutureTask.java:262)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:744)
at org.jboss.threads.JBossThread.run(JBossThread.java:320)
[0m[0m14:22:09,736 INFO [org.infinispan.eviction.impl.PassivationManagerImpl]
(ServerService Thread Pool -- 29) ISPN000030: Passivated 2 entries in 2 milliseconds
[0m14:22:09,736 INFO [org.jboss.ejb.client.remoting] (Remoting
"config-based-ejb-client-endpoint" task-5) EJBCLIENT000016: Channel Channel ID
ad5ee733 (outbound) of Remoting connection 29cd434b to /127.0.0.1:8080 can no longer
process messages
[0m14:22:09,738 INFO [org.jboss.weld.deployer] (MSC service thread 1-2) WFLYWELD0010:
Stopping weld service for deployment remote-failover-test.jar
[0m[0m14:22:09,740 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool
-- 29) WFLYCLINF0003: Stopped remote-failover-test.jar cache from ejb container
[0m[0m14:22:09,760 INFO [org.infinispan.eviction.impl.PassivationManagerImpl]
(ServerService Thread Pool -- 29) ISPN000029: Passivating all entries to disk
[0m[0m14:22:09,761 INFO [org.infinispan.eviction.impl.PassivationManagerImpl]
(ServerService Thread Pool -- 29) ISPN000030: Passivated 1 entries in 0 milliseconds
[0m[0m14:22:09,762 INFO [org.jboss.as.server.deployment] (MSC service thread 1-5)
WFLYSRV0028: Stopped deployment remote-failover-test.jar (runtime-name:
remote-failover-test.jar) in 36ms
[0m[0m14:22:09,764 INFO [org.jboss.as.clustering.infinispan] (ServerService Thread Pool
-- 29) WFLYCLINF0003: Stopped dist cache from ejb container
[0m[0m14:22:09,766 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport]
(MSC service thread 1-12) ISPN000080: Disconnecting JGroups channel ejb
[0m[0m14:22:09,766 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport]
(MSC service thread 1-12) ISPN000082: Stopping the RpcDispatcher for channel ejb
[0m[0m14:22:09,772 INFO [org.infinispan.remoting.transport.jgroups.JGroupsTransport]
(Incoming-4,ee,node-1) ISPN000094: Received new cluster view for channel ejb: [node-1|2]
(1) [node-1]
[0m[0m14:22:09,807 INFO [org.jboss.as.repository] (management-handler-thread - 1)
WFLYDR0002: Content removed from location
/home/nrla/projects/wildfly-git-repo/testsuite/integration/clustering/target/wildfly-SYNC-tcp-0/standalone/data/content/66/642dea2bc32c3ba888dd173db2b91d18b848b0/content
[0m[0m14:22:09,807 INFO [org.jboss.as.server] (management-handler-thread - 1)
WFLYSRV0009: Undeployed "remote-failover-test.jar" (runtime-name:
"remote-failover-test.jar")
{code}
Looking at the use of ControlPoints within EJBs, it seems that on undeployment, the
EJBComponent.stop() method calls ControlPoint.pause() only which will cause the
interceptor to block any future invocations but also not prevent the undeployment from
continuing, despite the fact that a request is active.
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