oam error java.io.IOException: [DeploymentService:290066]Error occurred while downloading files from admin server for deployment request "1,464,837,398,724". Underlying error is: "null"

Error:

<Info> <WebLogicServer> <BEA-000377> <Starting WebLogic Server with Java HotSpot(TM) 64-Bit Server VM Version 20.45-b01 from Sun Microsystems Inc.>
java.io.IOException: [DeploymentService:290066]Error occurred while downloading files from admin server for deployment request "1,464,837,398,724". Underlying error is: "null"
        at weblogic.deploy.service.datatransferhandlers.HttpDataTransferHandler.getDataAsStream(HttpDataTransferHandler.java:86)
        at weblogic.deploy.service.datatransferhandlers.DataHandlerManager$RemoteDataTransferHandler.getDataAsStream(DataHandlerManager.java:153)
        at weblogic.deploy.internal.targetserver.datamanagement.ConfigDataUpdate.doDownload(ConfigDataUpdate.java:75)
        at weblogic.deploy.internal.targetserver.datamanagement.DataUpdate.download(DataUpdate.java:56)
        at weblogic.deploy.internal.targetserver.datamanagement.Data.prepareDataUpdate(Data.java:97)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.downloadFiles(RuntimeAccessDeploymentReceiverService.java:920)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateFiles(RuntimeAccessDeploymentReceiverService.java:879)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.handleRegistrationResponse(RuntimeAccessDeploymentReceiverService.java:728)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.registerHandler(RuntimeAccessDeploymentReceiverService.java:699)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.start(RuntimeAccessDeploymentReceiverService.java:169)
        at weblogic.t3.srvr.ServerServicesManager.startService(ServerServicesManager.java:461)
        at weblogic.t3.srvr.ServerServicesManager.startInStandbyState(ServerServicesManager.java:166)
        at weblogic.t3.srvr.T3Srvr.initializeStandby(T3Srvr.java:881)
        at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:568)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:469)
        at weblogic.Server.main(Server.java:71)
 <Error> <Management> <BEA-141196> <The managed server could not update the configuration files during the registration with the deployment service. The update failed due to an exception:
weblogic.management.DeploymentException: Exception occured while downloading files
        at weblogic.deploy.internal.targetserver.datamanagement.ConfigDataUpdate.doDownload(ConfigDataUpdate.java:83)
        at weblogic.deploy.internal.targetserver.datamanagement.DataUpdate.download(DataUpdate.java:56)
        at weblogic.deploy.internal.targetserver.datamanagement.Data.prepareDataUpdate(Data.java:97)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.downloadFiles(RuntimeAccessDeploymentReceiverService.java:920)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateFiles(RuntimeAccessDeploymentReceiverService.java:879)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.handleRegistrationResponse(RuntimeAccessDeploymentReceiverService.java:728)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.registerHandler(RuntimeAccessDeploymentReceiverService.java:699)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.start(RuntimeAccessDeploymentReceiverService.java:169)
        at weblogic.t3.srvr.ServerServicesManager.startService(ServerServicesManager.java:461)
        at weblogic.t3.srvr.ServerServicesManager.startInStandbyState(ServerServicesManager.java:166)
        at weblogic.t3.srvr.T3Srvr.initializeStandby(T3Srvr.java:881)
        at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:568)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:469)
        at weblogic.Server.main(Server.java:71)
Caused By: java.io.IOException: [DeploymentService:290066]Error occurred while downloading files from admin server for deployment request "1,464,837,398,724". Underlying error is: "null"
        at weblogic.deploy.service.datatransferhandlers.HttpDataTransferHandler.getDataAsStream(HttpDataTransferHandler.java:86)
        at weblogic.deploy.service.datatransferhandlers.DataHandlerManager$RemoteDataTransferHandler.getDataAsStream(DataHandlerManager.java:153)
        at weblogic.deploy.internal.targetserver.datamanagement.ConfigDataUpdate.doDownload(ConfigDataUpdate.java:75)
        at weblogic.deploy.internal.targetserver.datamanagement.DataUpdate.download(DataUpdate.java:56)
        at weblogic.deploy.internal.targetserver.datamanagement.Data.prepareDataUpdate(Data.java:97)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.downloadFiles(RuntimeAccessDeploymentReceiverService.java:920)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateFiles(RuntimeAccessDeploymentReceiverService.java:879)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.handleRegistrationResponse(RuntimeAccessDeploymentReceiverService.java:728)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.registerHandler(RuntimeAccessDeploymentReceiverService.java:699)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.start(RuntimeAccessDeploymentReceiverService.java:169)
        at weblogic.t3.srvr.ServerServicesManager.startService(ServerServicesManager.java:461)
        at weblogic.t3.srvr.ServerServicesManager.startInStandbyState(ServerServicesManager.java:166)
        at weblogic.t3.srvr.T3Srvr.initializeStandby(T3Srvr.java:881)
        at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:568)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:469)
        at weblogic.Server.main(Server.java:71)
>
 <Critical> <WebLogicServer> <BEA-000362> <Server failed. Reason:

There are 1 nested errors:

weblogic.management.DeploymentException: Exception occured while downloading files
        at weblogic.deploy.internal.targetserver.datamanagement.ConfigDataUpdate.doDownload(ConfigDataUpdate.java:83)
        at weblogic.deploy.internal.targetserver.datamanagement.DataUpdate.download(DataUpdate.java:56)
        at weblogic.deploy.internal.targetserver.datamanagement.Data.prepareDataUpdate(Data.java:97)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.downloadFiles(RuntimeAccessDeploymentReceiverService.java:920)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.updateFiles(RuntimeAccessDeploymentReceiverService.java:879)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.handleRegistrationResponse(RuntimeAccessDeploymentReceiverService.java:728)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.registerHandler(RuntimeAccessDeploymentReceiverService.java:699)
        at weblogic.management.provider.internal.RuntimeAccessDeploymentReceiverService.start(RuntimeAccessDeploymentReceiverService.java:169)
        at weblogic.t3.srvr.ServerServicesManager.startService(ServerServicesManager.java:461)
        at weblogic.t3.srvr.ServerServicesManager.startInStandbyState(ServerServicesManager.java:166)
        at weblogic.t3.srvr.T3Srvr.initializeStandby(T3Srvr.java:881)
        at weblogic.t3.srvr.T3Srvr.startup(T3Srvr.java:568)
        at weblogic.t3.srvr.T3Srvr.run(T3Srvr.java:469)
        at weblogic.Server.main(Server.java:71)
Caused by: java.io.IOException: [DeploymentService:290066]Error occurred while downloading files from admin server for deployment request "1,464,837,398,724". Underlying error is: "null"
        at weblogic.deploy.service.datatransferhandlers.HttpDataTransferHandler.getDataAsStream(HttpDataTransferHandler.java:86)
        at weblogic.deploy.service.datatransferhandlers.DataHandlerManager$RemoteDataTransferHandler.getDataAsStream(DataHandlerManager.java:153)
        at weblogic.deploy.internal.targetserver.datamanagement.ConfigDataUpdate.doDownload(ConfigDataUpdate.java:75)
        ... 13 more

>
 <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FAILED>
 <Error> <WebLogicServer> <BEA-000383> <A critical service failed. The server will shut itself down>
 <Notice> <WebLogicServer> <BEA-000365> <Server state changed to FORCE_SHUTTING_DOWN>


Solution:

i went thru a lot of blogs but i did not find solution. my Managed server is at different host and Admin server running at different machine. here is how i fixed the issue.

went to AdminServer logs and reviewed the AdminServer.log and found error  oam server is unable to check config.xml.orgfile because file  have root permissions(it happened when someone started Admin server by root). check all the files at Admin Server under <domain_home>/config and see if any file have different permission. i have changed the permission to oracle (my Admin and Managed server is running under oracle) on this file and restarted the OAM server and it worked. it might have happened because Admin Server was started by root( mistake) instead of oracle that own the domain.