Hi,
This problem heppens when I deploy DCs via NWDS. After deploying, I find some applications in status 'Failed to start' in NWA. I restart one but not work. I found the following message in log viewer. How should I resolve it? I have encoutered it several times. Our server is NW 7.31 SP05
Cannot create application loader for application [com.a/demo~test~ear].
[EXCEPTION]
com.sap.engine.services.deploy.exceptions.ServerDeploymentException: Cannot create application loader for application [com.a/demo~test~ear].
at com.sap.engine.services.deploy.server.utils.LoadContextUtils.createSharedApplicationLoader(LoadContextUtils.java:182)
at com.sap.engine.services.deploy.server.DeployServiceImpl.bindLoader(DeployServiceImpl.java:1477)
at com.sap.engine.services.deploy.server.application.BootstrapApplicationTransaction.prepare(BootstrapApplicationTransaction.java:173)
at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhasesOnOneServer(ApplicationTransaction.java:430)
at com.sap.engine.services.deploy.server.application.BootstrapApplicationTransaction.makeAllPhases(BootstrapApplicationTransaction.java:448)
at com.sap.engine.services.deploy.server.application.StartTransaction.makeBootstrapTransactionTransaction(StartTransaction.java:627)
at com.sap.engine.services.deploy.server.application.StartTransaction.bootstrapApp(StartTransaction.java:605)
at com.sap.engine.services.deploy.server.application.StartTransaction.prepareCommon(StartTransaction.java:339)
at com.sap.engine.services.deploy.server.application.StartTransaction.prepare(StartTransaction.java:322)
at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhasesOnOneServer(ApplicationTransaction.java:430)
at com.sap.engine.services.deploy.server.application.ApplicationTransaction.makeAllPhases(ApplicationTransaction.java:473)
at com.sap.engine.services.deploy.server.application.ParallelAdapter.makeAllPhasesSequentially(ParallelAdapter.java:324)
at com.sap.engine.services.deploy.server.application.StartTransaction.makeAllPhases(StartTransaction.java:644)
at com.sap.engine.services.deploy.server.DeployServiceImpl.makeGlobalTransaction(DeployServiceImpl.java:1827)
at com.sap.engine.services.deploy.server.DeployServiceImpl.startApplicationAndWait(DeployServiceImpl.java:2477)
at com.sap.engine.services.deploy.server.DeployServiceImpl.startApplicationOnInstanceWait(DeployServiceImpl.java:2729)
at com.sap.engine.services.deploy.server.DeployServiceImpl$1.run(DeployServiceImpl.java:2912)
at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)
at java.security.AccessController.doPrivileged(Native Method)
at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:185)
at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:302)
Caused by: java.lang.IllegalStateException: The loader [com.a/demo~test~ear] cannot be unregistered because it has the following living child loaders:
com.a/demo~abc~ear
com.a/demo~aaa~wd
The following class loaders were identified to be causing the chain of unregistered loaders. Check the server traces above to investigate why these loaders are still alive:
com.a/demo~aaa~wd[use for CSN]
at com.sap.engine.services.deploy.server.utils.LoadContextUtils.ensureLoaderIsUnregistered(LoadContextUtils.java:111)
at com.sap.engine.services.deploy.server.utils.LoadContextUtils.releaseSharedApplicationLoader(LoadContextUtils.java:413)
at com.sap.engine.services.deploy.server.utils.LoadContextUtils.createSharedApplicationLoader(LoadContextUtils.java:155)
... 20 more