WSO2 IS(pre-packaged) as Key Manager to API-M error - wso2

Question

The pre-packaged Identity Server cannot mount _system/config as specified in registry.xml:
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>
After configuring and initial start-up (sh wso2server -Dsetup) I get:
ERROR {org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent} - Unable to create fixed remote mounts. {org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent}
org.wso2.carbon.registry.core.exceptions.ResourceNotFoundException: Resource does not exist at path /_system/governance
Then I configured API-M , started up , successfully creates both mounts.
Restarted IS and get :
INFO {org.wso2.carbon.registry.core.jdbc.EmbeddedRegistryService} - Connected to mount at govregistry in 2ms {org.wso2.carbon.registry.core.jdbc.EmbeddedRegistryService}
ERROR {org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent} - Unable to create fixed remote mounts. {org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent}
org.wso2.carbon.registry.core.exceptions.RegistryException: An exception occurred while executing handler chain. null
at org.wso2.carbon.registry.core.jdbc.handlers.HandlerManager.delete(HandlerManager.java:2649)
at org.wso2.carbon.registry.core.jdbc.handlers.UserDefinedHandlerManager.delete(UserDefinedHandlerManager.java:215)
at org.wso2.carbon.registry.core.jdbc.handlers.HandlerLifecycleManager.delete(HandlerLifecycleManager.java:452)
at org.wso2.carbon.registry.core.jdbc.EmbeddedRegistry.delete(EmbeddedRegistry.java:843)
at org.wso2.carbon.registry.core.caching.CacheBackedRegistry.delete(CacheBackedRegistry.java:512)
at org.wso2.carbon.registry.core.session.UserRegistry.deleteInternal(UserRegistry.java:870)
at org.wso2.carbon.registry.core.session.UserRegistry.access$1100(UserRegistry.java:60)
at org.wso2.carbon.registry.core.session.UserRegistry$12.run(UserRegistry.java:845)
at org.wso2.carbon.registry.core.session.UserRegistry$12.run(UserRegistry.java:842)
at java.security.AccessController.doPrivileged(Native Method)
at org.wso2.carbon.registry.core.session.UserRegistry.delete(UserRegistry.java:842)
at org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent.setupMounts(RegistryCoreServiceComponent.java:343)
at org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent.buildRegistryService(RegistryCoreServiceComponent.java:572)
at org.wso2.carbon.registry.core.internal.RegistryCoreServiceComponent.activate(RegistryCoreServiceComponent.java:117)
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:606)
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.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.wso2.carbon.user.core.internal.Activator.startDeploy(Activator.java:70)
at org.wso2.carbon.user.core.internal.BundleCheckActivator.start(BundleCheckActivator.java:61)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl$1.run(BundleContextImpl.java:711)
at java.security.AccessController.doPrivileged(Native Method)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.startActivator(BundleContextImpl.java:702)
at org.eclipse.osgi.framework.internal.core.BundleContextImpl.start(BundleContextImpl.java:683)
at org.eclipse.osgi.framework.internal.core.BundleHost.startWorker(BundleHost.java:381)
at org.eclipse.osgi.framework.internal.core.AbstractBundle.resume(AbstractBundle.java:390)
at org.eclipse.osgi.framework.internal.core.Framework.resumeBundle(Framework.java:1176)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:559)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.resumeBundles(StartLevelManager.java:544)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.incFWSL(StartLevelManager.java:457)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.doSetStartLevel(StartLevelManager.java:243)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:438)
at org.eclipse.osgi.framework.internal.core.StartLevelManager.dispatchEvent(StartLevelManager.java:1)
at org.eclipse.osgi.framework.eventmgr.EventManager.dispatchEvent(EventManager.java:230)
at org.eclipse.osgi.framework.eventmgr.EventManager$EventThread.run(EventManager.java:340)
Caused by: java.lang.NullPointerException
at org.wso2.carbon.registry.core.jdbc.handlers.builtin.MountHandler.delete(MountHandler.java:492)
at org.wso2.carbon.registry.core.jdbc.handlers.HandlerManager.delete(HandlerManager.java:2627)
... 50 more
The registry view in IS console shows that governance is successfully mounted.
Should the IS config registry be shared/mounted? If so please advise or update the documentation.
Also is this correct in registry.xml as per the doc ?:
<remoteInstance url="https://localhost">
<id>gov</id>
<dbConfig>govregistry</dbConfig>
<cacheId>root#jdbc:mysql://10.20.30.42:3306/registrydb</cacheId>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
Should that be my local IP address and also the db previously created is registry not registrydb
is/repository/conf/registry.xml
<dbConfig name="wso2registry">
<dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>
<dbConfig name="govregistry">
<dataSource>jdbc/WSO2REG_DB</dataSource>
</dbConfig>
<remoteInstance url="https://localhost">
<id>gov</id>
<dbConfig>govregistry</dbConfig>
<cacheId>root#jdbc:mysql://10.20.30.42:3306/registrydb</cacheId>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
<mount path="/_system/governance" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>
API-M/repository/conf/registry.xml :
<dbConfig name="wso2registry">
<dataSource>jdbc/WSO2CarbonDB</dataSource>
</dbConfig>
<dbConfig name="govregistry">
<dataSource>jdbc/WSO2REG_DB</dataSource>
</dbConfig>
<remoteInstance url="https://localhost">
<id>gov</id>
<dbConfig>govregistry</dbConfig>
<cacheId>root#jdbc:mysql://10.20.30.42:3306/registrydb</cacheId>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
<mount path="/_system/governance" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>
I have followed (https://docs.wso2.com/display/CLUSTER420/Configuring+the+Pre-Packaged+Identity+Server+5.0.0+with+API+Manager+1.9.0)

Answer 1

In fact there is problem with mount governance space.
Governance space in Identity Server has already been mounted after define the from mentioned IdS as KeyManager guide.
The config space isn`t configured correctly, because in registry.xml the 'conf' mount is after the 'governance'.
When 'conf' part will be moved before 'governance' the error will stil appear, but 'config' will appear as remote space in registry browser in wso2 web console.
Below is mentioned registry.xml mounting order:
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>
<mount path="/_system/governance" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>

Answer 2

Seems like an issues with reistry configuration. Please make sure your registry.xml configurations are correct. Please clean the database and restart the both servers.
IS Side:
<dbConfig name="govregistry">
<dataSource>jdbc/WSO2REG_DB</dataSource>
</dbConfig>
<remoteInstance url="https://localhost">
<id>gov</id>
<dbConfig>govregistry</dbConfig>
<cacheId>root#jdbc:mysql://10.20.30.42:3306/registrydb</cacheId>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
<mount path="/_system/governance" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>
APIM Side :
<dbConfig name="govregistry">
<dataSource>jdbc/WSO2REG_DB</dataSource>
</dbConfig>
<remoteInstance url="https://localhost">
<id>gov</id>
<dbConfig>govregistry</dbConfig>
<cacheId>root#jdbc:mysql://10.20.30.42:3306/registrydb</cacheId>
<readOnly>false</readOnly>
<enableCache>true</enableCache>
<registryRoot>/</registryRoot>
</remoteInstance>
<mount path="/_system/governance" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/governance</targetPath>
</mount>
<mount path="/_system/config" overwrite="true">
<instanceId>gov</instanceId>
<targetPath>/_system/config</targetPath>
</mount>