Hi Indika, Please correct me if I'm wrong, the error trace posted in your mail doesn't seem to suggest that the problem reported was caused by something specific to Cassandra datasource configurations. Would you be able to explain a little further as to how you concluded it that way?
FYI, we'd used the same configurations a few week backs while trying to fix some Cassandra related dependency issue seen in MB, but had never come across something like this. and I'm sure there hasn't been any changes in Cassandra data reader implementation since then, as well. Perhaps, it's a good idea to debug the ndatasource component and see what's gone wrong? Cheers, Prabath On Tue, Oct 28, 2014 at 4:03 PM, Indika Sampath <[email protected]> wrote: > Hi All, > > Cassandra server no longer embedded into WSO2 MB 3.0.0. Therefore I have > removed following features from the product as well as removed cassandra > profile too. > > org.wso2.carbon.cassandra.server > org.wso2.carbon.cassandra.common > > The only remain cassandra related feature is > org.wso2.carbon.cassandra.datareader. We use this feature to connect with > external cassandra server by enabling cassandra datasource in > master-datasources.xml. Communication happen with cassandra via > cql-driver_1.0.8.wso2v1. > > We have added following <provider> under <providers> in > master-datasources.xml > > > <provider>org.wso2.carbon.cassandra.datareader.datasource.CassandraDataSourceReader</provider> > > Here is datasource we used to connect to external cassandra server > > <datasource> > <name>WSO2_CASSANDRA_DB</name> > <description>The datasource used for cassandra</description> > <jndiConfig> > <name>CassandraRepo</name> > </jndiConfig> > <definition type="CASSANDRA"> > <configuration> > <async>false</async> > <clusterName>TestCluster</clusterName> > <compression>SNAPPY</compression> > <concurrency>100</concurrency> > <username>admin</username> > <password encrypted="true">admin</password> > <port>9042</port> > <maxConnections>100</maxConnections> > > <hosts> > <host>127.0.0.1</host> > </hosts> > <loadBalancePolicy> > <exclusionThreshold>2.5</exclusionThreshold> > <latencyAware>true</latencyAware> > <minMeasure>100</minMeasure> > <policyName>RoundRobinPolicy</policyName> > <retryPeriod>10</retryPeriod> > <scale>2</scale> > </loadBalancePolicy> > > <poolOptions> > > <coreConnectionsForLocal>10</coreConnectionsForLocal> > > <coreConnectionsForRemote>10</coreConnectionsForRemote> > <maxConnectionsForLocal>10</maxConnectionsForLocal> > > <maxConnectionsForRemote>10</maxConnectionsForRemote> > > <maxSimultaneousRequestsForLocal>10</maxSimultaneousRequestsForLocal> > > <maxSimultaneousRequestsForRemote>10</maxSimultaneousRequestsForRemote> > > <minSimultaneousRequestsForLocal>10</minSimultaneousRequestsForLocal> > > <minSimultaneousRequestsForRemote>10</minSimultaneousRequestsForRemote> > </poolOptions> > > <reconnectPolicy> > <baseDelayMs>100</baseDelayMs> > <policyName>ConstantReconnectionPolicy</policyName> > </reconnectPolicy> > <socketOptions> > <connectTimeoutMillis>200</connectTimeoutMillis> > <keepAlive>true</keepAlive> > <readTimeoutMillis>200</readTimeoutMillis> > <tcpNoDelay>true</tcpNoDelay> > </socketOptions> > > </configuration> > > </definition> > </datasource> > > State of org.wso2.carbon.cassandra.datareader as below. > > 136 ACTIVE org.wso2.carbon.cassandra.datareader_4.3.0.SNAPSHOT > > I have enabled DEBUG logs of DataSourceServiceComponent and it seems > setSecretCallbackHandlerService() method called twice when bundle > activation and private void initSystemDataSources() get called inside this > setter method. It gives the below exception when second time calling > initSystemDataSources() method. Is there anything wrong in our side with > the implementation of connect to cassandra enabling datasource? > > [2014-10-28 14:50:23,521] INFO > {org.wso2.carbon.databridge.agent.thrift.internal.AgentDS} - Successfully > deployed Agent Client > [2014-10-28 14:50:23,586] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > SecretCallbackHandlerService acquired > [2014-10-28 14:50:23,586] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > Initializing system data sources... > [2014-10-28 14:50:23,778] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > SecretCallbackHandlerService acquired > [2014-10-28 14:50:23,778] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > Initializing system data sources... > [2014-10-28 14:50:23,793] 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/indika/dev-zone/wso2-dev/fork/product-mb/modules/distribution/target/wso2mb-3.0.0-SNAPSHOT/repository/conf/datasources/master-datasources.xml' > - System datasource WSO2_CARBON_DBcan not be updated. > org.wso2.carbon.ndatasource.common.DataSourceException: Error in > initializing system data sources: Error in initializing system data sources > at > '/home/indika/dev-zone/wso2-dev/fork/product-mb/modules/distribution/target/wso2mb-3.0.0-SNAPSHOT/repository/conf/datasources/master-datasources.xml' > - System datasource WSO2_CARBON_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:191) > at > org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent.setSecretCallbackHandlerService(DataSourceServiceComponent.java:177) > 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 > 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.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:662) > Caused by: org.wso2.carbon.ndatasource.common.DataSourceException: Error > in initializing system data sources at > '/home/indika/dev-zone/wso2-dev/fork/product-mb/modules/distribution/target/wso2mb-3.0.0-SNAPSHOT/repository/conf/datasources/master-datasources.xml' > - System datasource WSO2_CARBON_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:157) > ... 18 more > Caused by: org.wso2.carbon.ndatasource.common.DataSourceException: System > datasource WSO2_CARBON_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) > ... 19 more > [2014-10-28 14:50:23,795] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > ServerConfigurationService acquired > [2014-10-28 14:50:23,795] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > DataSourceServiceComponent activated > [2014-10-28 14:50:26,250] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > RealmService acquired > [2014-10-28 14:50:26,327] INFO > {org.wso2.carbon.registry.core.jdbc.EmbeddedRegistryService} - Configured > Registry in 33ms > [2014-10-28 14:50:26,415] INFO > {org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent} - > Registry Mode : READ-WRITE > [2014-10-28 14:50:26,419] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > RegistryService acquired > [2014-10-28 14:50:26,419] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > Initializing super tenant user data sources... > [2014-10-28 14:50:26,421] DEBUG > {org.wso2.carbon.ndatasource.core.internal.DataSourceServiceComponent} - > Super tenant user data sources successfully initialized > [2014-10-28 14:50:26,559] INFO > {org.wso2.carbon.user.core.internal.UserStoreMgtDSComponent} - Carbon > UserStoreMgtDSComponent activated successfully. > > Cheers! > > -- > Indika Sampath > Software Engineer > WSO2 Inc. > http://wso2.com > > Phone: +94 716 424 744 > Blog: http://indikasampath.blogspot.com/ > > -- Prabath Abeysekara Associate Technical Lead, Data TG. WSO2 Inc. Email: [email protected] Mobile: +94774171471
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