WSO2 : Setting up the WSO2 server

Question

I'm struggling for 2 days now on setting up wso2 environment (i read the getting started guide like 10 times) for simple test. All i need is to be able to setup a server and one client. At the end, I would like to send files from the server to the client, but first, i want to be able to start the server...

currently, when i try to start it, I'm getting the following exception:

ERROR {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - Error in intializing system data sources: Error in initializing system data sources: Error in initializing system data sources at '/home/gidi/Downloads/wso2emm-1.1.0/repository/conf/datasources/master-datasources.xml' - null org.wso2.carbon.ndatasource.common.DataSourceException: Error in initializing system data sources: Error in initializing system data sources at '/home/gidi/Downloads/wso2emm-1.1.0/repository/conf/datasources/master-datasources.xml' - null at org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSources(DataSourceManager.java:168) at org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent.initSystemDataSources(DataSourceServiceComponent.java:191) at org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent.setSecretCallbackHandlerService(DataSourceServiceComponent.java:177) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.Nat iveMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:622) at org.eclipse.equinox.internal.ds.model.ComponentReference.bind(ComponentReference.java:376) at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.bindReference(ServiceComponentProp.java:432) at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.bind(ServiceComponentProp.java:218) at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:345) at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620) at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197) at org.eclipse.equinox.internal.ds.Resolver.getEligible(Resolver.java:343) at org.eclipse.equinox.internal.ds.SCRManager.serviceChanged(SCRManager.java:222) at org.eclipse.osgi.internal.serviceregistry.FilteredSer viceListener.serviceChanged(FilteredServiceListener.java:107) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.dispatchEvent(BundleContextImpl.java:861) at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230) at org.eclipse.osgi.framework.eventmgr.ListenerQueue.dispatchEventSynchronous(ListenerQueue.java:148) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEventPrivileged(ServiceRegistry.java:819) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.publishServiceEvent(ServiceRegistry.java:771) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistrationImpl.register(ServiceRegistrationImpl.java:130) at org.eclipse.osgi.internal.serviceregistry.ServiceRegistry.registerService(ServiceRegistry.java:214) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.java:433) at org.eclipse.osgi.framework.internal.core.BundleContextImpl.registerService(BundleContextImpl.ja va:451) at org.wso2.carbon.securevault.internal.SecretManagerInitializerComponent.activate(SecretManagerInitializerComponent.java:48) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:622) at org.eclipse.equinox.internal.ds.model.ServiceComponent.activate(ServiceComponent.java:260) at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.activate(ServiceComponentProp.java:146) at org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:347) at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponent(InstanceProcess.java:620) at org.eclipse.equinox.internal.ds.InstanceProcess.buildComponents(InstanceProcess.java:197) at org.eclipse.equinox.internal.ds.Resolver.buildNewlySatisfied(Resolver.java:473) at org.eclipse.equ inox.internal.ds.Resolver.enableComponents(Resolver.java:217) at org.eclipse.equinox.internal.ds.SCRManager.performWork(SCRManager.java:816) at org.eclipse.equinox.internal.ds.SCRManager$QueuedJob.dispatch(SCRManager.java:783) at org.eclipse.equinox.internal.ds.WorkThread.run(WorkThread.java:89) at java.lang.Thread.run(Thread.java:701) Caused by: org.wso2.carbon.ndatasource.common.DataSourceException: Error in initializing system data sources at '/home/gidi/Downloads/wso2emm-1.1.0/repository/conf/datasources/master-datasources.xml' - null at org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSource(DataSourceManager.java:188) at org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSources(DataSourceManager.java:157) ... 40 more Caused by: java.lang.NullPointerException at org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSource(DataSourceManager.java:183) ... 41 more

Thanks.

Answer 1

最终，我注册了所有更改，并按照教程进行操作并成功注册了设备

Answer 2

I found that I had the CARBON_DB in the master-datasources.xml multiple times. After I thinned it down to one copy the ESB started up.