[jboss-jira] [Red Hat JIRA] (WFLY-13956) TwoConnectorsEJBFailoverTestCase sometimes hangs when running with jboss-ejb-client 4.0.35

TwoConnectorsEJBFailoverTestCase sometimes hangs when running with jboss-ejb-client 4.0.35 ------------------------------------------------------------------------------------------ Key: WFLY-13956 URL: https://issues.redhat.com/browse/WFLY-13956 Project: WildFly Issue Type: Bug Components: EJB Affects Versions: 21.0.0.Beta1 Reporter: Cheng Fang Assignee: Cheng Fang Priority: Major Attachments: Screen Shot 2020-10-12 at 9.57.36 AM.png When upgrading jboss-ejb-client to version 4.0.35.Final, we noticed some WildFly CI jobs sometimes hang when running {{TwoConnectorsEJBFailoverTestCase}}, causing 100+ (e.g., 466) tests to fail: {code} RemoteElytronSingleSignOnTestCase.testSessionTimeoutDestroysSSOorg.jboss.as.test.clustering.cluster.sso.remote RemoteElytronSingleSignOnTestCase.testFormAuthSingleSignOnorg.jboss.as.test.clustering.cluster.sso.remote RemoteElytronSingleSignOnTestCase.testNoAuthSingleSignOnorg.jboss.as.test.clustering.cluster.sso.remote RemoteSingleSignOnTestCase.testSessionTimeoutDestroysSSOorg.jboss.as.test.clustering.cluster.sso.remote RemoteSingleSignOnTestCase.testFormAuthSingleSignOnorg.jboss.as.test.clustering.cluster.sso.remote RemoteSingleSignOnTestCase.testNoAuthSingleSignOnorg.jboss.as.test.clustering.cluster.sso.remote CoarseHotRodPersistenceWebFailoverTestCase.testGracefulUndeployFailoverorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodPersistenceWebFailoverTestCase.testNonPrimaryOwnerorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodPersistenceWebFailoverTestCase.testGracefulSimpleFailoverorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodSessionActivationTestCase.testorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodWebFailoverTestCase.testGracefulUndeployFailoverorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodWebFailoverTestCase.testNonPrimaryOwnerorg.jboss.as.test.clustering.cluster.web.remote CoarseHotRodWebFailoverTestCase.testGracefulSimpleFailoverorg.jboss.as.test.clustering.cluster.web.remote CoarseTransactionalHotRodWebFailoverTestCase.testGracefulUndeployFailoverorg.jboss.as.test.clustering.cluster.web.remote CoarseTransactionalHotRodWebFailoverTestCase.testNonPrimaryOwnerorg.jboss.as.test.clustering.cluster.web.remote CoarseTransactionalHotRodWebFailoverTestCase.testGracefulSimpleFailoverorg.jboss.as.test.clustering.cluster.web.remote FineHotRodPersistenceWebFailoverTestCase.testGracefulUndeployFailoverorg.jboss.as.test.clustering.cluster.web.remote {code} The error messages are like: {code} org.jboss.arquillian.container.spi.client.container.LifecycleException: The port 9990 is already in use. It means that either the server might be already running or there is another process using port 9990. Managed containers do not support connecting to running server instances due to the possible harmful effect of connecting to the wrong server. Please stop server (or another process) before running, change to another type of container (e.g. remote) or use jboss.socket.binding.port-offset variable to change the default port. To disable this check and allow Arquillian to connect to a running server, set allowConnectingToRunningServer to true in the container configuration {code} In a [successful CI job|https://ci.wildfly.org/buildConfiguration/WFPR/226438?], {{TwoConnectorsEJBFailoverTestCase}} runs 2 tests: {{testEJBClientUsingLegacyRemotingProtocol}} and {{testEJBClientUsingHttpUpgradeProtocol}}, each taking ~25 seconds to complete. See attached screenshot. But in a [failed CI job|https://ci.wildfly.org/buildConfiguration/WF_PullRequest_LinuxJdk11/2...], filtering by {{TwoConnectorsEJBFailoverTestCase}} gives no result, which means the test hangs at {{testEJBClientUsingLegacyRemotingProtocol}} and so the test runner hasn't been able to collect the result from either test.