Hi,
Suddenly, our OVS server stop working for our server pool. when we try to start it gives following error. Please advice us. are there any log files where i can check details for error ?
OVMAPI_4005E No worker server found to perform operation on: aabiovs [Thu Jan 22 16:36:12 AST 2015]

AdminServer.log
####<Jan 22, 2015 12:04:57 PM AST> <Info> <com.oracle.ovm.mgr.api.job.InternalJob> <acclbidb> <AdminServer> <Odof Tcp Client Thread: /127.0.0.1:54321/128>
<<anonymous>> <> <0000KgGqL324YrGayx2jMG1KkBej000002> <1421917497763> <BEA-000000> <Job: 1421917494090, Time: 1421917494091, Internal Error (Operation)
OVMAPI_4010E Attempt to send command: get_api_version to server: 192.16.47.181 failed. OVMAPI_4004E Server Failed Command:
get_api_version , Status: org.apache.xmlrpc.XmlRpcException: I/O error while communicating with HTTP server: No route to host
[Thu Jan 22 12:04:57 AST 2015] [Thu Jan 22 12:04:57 AST 2015]
com.oracle.ovm.mgr.api.exception.FailedOperationException: OVMAPI_4010E Attempt to send command: get_api_version to server: 192.16.47.181 failed.
OVMAPI_4004E Server Failed Command: get_api_version , Status: org.apache.xmlrpc.XmlRpcException:
I/O error while communicating with HTTP server: No route to host [Thu Jan 22 12:04:57 AST 2015] [Thu Jan 22 12:04:57 AST 2015]
at com.oracle.ovm.mgr.action.ActionEngine.sendCommandToServer(ActionEngine.java:513)
at com.oracle.ovm.mgr.action.ActionEngine.sendUndispatchedServerCommand(ActionEngine.java:400)
at com.oracle.ovm.mgr.action.ServerAction.getSupportedApiVersions(ServerAction.java:314)
at com.oracle.ovm.mgr.discover.DiscoverEngine.getServerApiVersions(DiscoverEngine.java:446)
at com.oracle.ovm.mgr.discover.DiscoverEngine.updateServerApiVersions(DiscoverEngine.java:432)
at com.oracle.ovm.mgr.discover.DiscoverEngine.handleDefaultDiscover(DiscoverEngine.java:310)
at com.oracle.ovm.mgr.discover.DiscoverEngine.discoverServer(DiscoverEngine.java:168)
at com.oracle.ovm.mgr.op.physical.ServerRefresh.action(ServerRefresh.java:66)
at com.oracle.ovm.mgr.api.collectable.ManagedObjectDbImpl.executeCurrentJobOperationAction(ManagedObjectDbImpl.java:1156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:356)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:333)
at com.oracle.odof.core.storage.Transaction.invokeMethod(Transaction.java:869)
at com.oracle.odof.core.Exchange.invokeMethod(Exchange.java:244)
at com.oracle.ovm.mgr.api.physical.ServerProxy.executeCurrentJobOperationAction(Unknown Source)
at com.oracle.ovm.mgr.api.job.JobEngine.operationActioner(JobEngine.java:230)
at com.oracle.ovm.mgr.api.job.JobEngine.objectActioner(JobEngine.java:322)
at com.oracle.ovm.mgr.api.job.InternalJobDbImpl.objectCommitter(InternalJobDbImpl.java:1383)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:356)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:333)
at com.oracle.odof.core.BasicWork.invokeMethod(BasicWork.java:106)
at com.oracle.odof.command.InvokeMethodCommand.process(InvokeMethodCommand.java:92)
at com.oracle.odof.core.BasicWork.processCommand(BasicWork.java:81)
at com.oracle.odof.core.TransactionManager.processCommand(TransactionManager.java:752)
at com.oracle.odof.core.WorkflowManager.processCommand(WorkflowManager.java:467)
at com.oracle.odof.core.WorkflowManager.processWork(WorkflowManager.java:525)
at com.oracle.odof.io.AbstractClient.run(AbstractClient.java:42)
at java.lang.Thread.run(Thread.java:662)
Caused By: com.oracle.ovm.mgr.api.exception.IllegalOperationException:
OVMAPI_4004E Server Failed Command: get_api_version , Status: org.apache.xmlrpc.XmlRpcException:
I/O error while communicating with HTTP server: No route to host [Thu Jan 22 12:04:57 AST 2015]
at com.oracle.ovm.mgr.action.ActionEngine.sendAction(ActionEngine.java:909)
at com.oracle.ovm.mgr.action.ActionEngine.sendCommandToServer(ActionEngine.java:509)
at com.oracle.ovm.mgr.action.ActionEngine.sendUndispatchedServerCommand(ActionEngine.java:400)
at com.oracle.ovm.mgr.action.ServerAction.getSupportedApiVersions(ServerAction.java:314)
at com.oracle.ovm.mgr.discover.DiscoverEngine.getServerApiVersions(DiscoverEngine.java:446)
at com.oracle.ovm.mgr.discover.DiscoverEngine.updateServerApiVersions(DiscoverEngine.java:432)
at com.oracle.ovm.mgr.discover.DiscoverEngine.handleDefaultDiscover(DiscoverEngine.java:310)
at com.oracle.ovm.mgr.discover.DiscoverEngine.discoverServer(DiscoverEngine.java:168)
at com.oracle.ovm.mgr.op.physical.ServerRefresh.action(ServerRefresh.java:66)
at com.oracle.ovm.mgr.api.collectable.ManagedObjectDbImpl.executeCurrentJobOperationAction(ManagedObjectDbImpl.java:1156)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:356)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:333)
at com.oracle.odof.core.storage.Transaction.invokeMethod(Transaction.java:869)
at com.oracle.odof.core.Exchange.invokeMethod(Exchange.java:244)
at com.oracle.ovm.mgr.api.physical.ServerProxy.executeCurrentJobOperationAction(Unknown Source)
at com.oracle.ovm.mgr.api.job.JobEngine.operationActioner(JobEngine.java:230)
at com.oracle.ovm.mgr.api.job.JobEngine.objectActioner(JobEngine.java:322)
at com.oracle.ovm.mgr.api.job.InternalJobDbImpl.objectCommitter(InternalJobDbImpl.java:1383)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:356)
at com.oracle.odof.core.AbstractVessel.invokeMethod(AbstractVessel.java:333)
at com.oracle.odof.core.BasicWork.invokeMethod(BasicWork.java:106)
at com.oracle.odof.command.InvokeMethodCommand.process(InvokeMethodCommand.java:92)
at com.oracle.odof.core.BasicWork.processCommand(BasicWork.java:81)
at com.oracle.odof.core.TransactionManager.processCommand(TransactionManager.java:752)
at com.oracle.odof.core.WorkflowManager.processCommand(WorkflowManager.java:467)
at com.oracle.odof.core.WorkflowManager.processWork(WorkflowManager.java:525)
at com.oracle.odof.io.AbstractClient.run(AbstractClient.java:42)
at java.lang.Thread.run(Thread.java:662)