Hi,
An exception[1] is thrown at the server startup when ML features are
installed in CEP 4.0.0 Alpha.
The issue here is, there are two *WSO2ML_DB* datasources are initialized at
the server startup when ML features are installed.
In [2], *WSO2ML_DB* datasource has been added to the *master-datasources.xml
in cep*.
But when installing ML features, ml-datasoures.xml file is copied into the
repository/conf/datasources. This file also contains WSO2ML_DB datasource.
The exception is thrown when the second WSO2ML_DB datasource is
initialized. I've commented the WSO2ML_DB from master-datasources.xml, then
the exception is not there.
[1]
[2015-06-16 10:00:24,855] 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/manorama/Products/CEP/wso2cep-4.0.0-alpha/
repository/conf/datasources/ml-datasources.xml' - System datasource
WSO2ML_DBcan not be updated.
org.wso2.carbon.ndatasource.common.DataSourceException: Error in
initializing system data sources: Error in initializing system data sources
at
'/home/manorama/Products/CEP/wso2cep-4.0.0-alpha/repository/conf/datasources/ml-datasources.xml'
- System datasource WSO2ML_DBcan not be updated.
at
org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSources(DataSourceManager.java:168)
at
org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent.initSystemDataSources(DataSourceServiceComponent.java:192)
at
org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent.setSecretCallbackHandlerService(DataSourceServiceComponent.java:178)
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:601)
at
org.eclipse.equinox.internal.ds.model.ComponentReference.bind(ComponentReference.java:376)
at
org.eclipse.equinox.internal.ds.model.ServiceComponentProp.bindReference(ServiceComponentProp.java:430)
at
org.eclipse.equinox.internal.ds.model.ServiceComponentProp.bind(ServiceComponentProp.java:218)
at
org.eclipse.equinox.internal.ds.model.ServiceComponentProp.build(ServiceComponentProp.java:343)
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.FilteredServiceListener.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.java: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:601)
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: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.buildNewlySatisfied(Resolver.java:473)
at
org.eclipse.equinox.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:722)
Caused by: org.wso2.carbon.ndatasource.common.DataSourceException: Error in
initializing system data sources at
'/home/manorama/Products/CEP/wso2cep-4.0.0-alpha/repository/conf/datasources/ml-datasources.xml'
- System datasource WSO2ML_DBcan not be updated.
at
org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSource(DataSourceManager.java:188)
at
org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSources(DataSourceManager.java:164)
... 40 more
Caused by: org.wso2.carbon.ndatasource.common.DataSourceException: System
datasource WSO2ML_DBcan not be updated.
at
org.wso2.carbon.ndatasource.core.DataSourceRepository.registerDataSource(DataSourceRepository.java:344)
at
org.wso2.carbon.ndatasource.core.DataSourceRepository.addDataSource(DataSourceRepository.java:473)
at
org.wso2.carbon.ndatasource.core.DataSourceManager.initSystemDataSource(DataSourceManager.java:185)
... 41 more
[2]
https://github.com/wso2/product-cep/commit/355c60e860c2ff555a0b6ec82ef33714aecba932
Thanks.
--
Manorama Perera
Software Engineer
WSO2, Inc.; http://wso2.com/
Mobile : +94716436216
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