[ecf-dev] OOM Error using custom RegistrySharedObject and HostContainerS

[Peter Hermsdorf <peter.hermsdorf@xxxxxxxxx>]

Hi all,

sorry for double posting - hotkeys are evil sometimes...

for custom error handling on server side (please see previous discussion 
on this list as of 27.06.2014 with the subject "Exception Handling of 
Remote Calls") we use a derived HostContainerSelector and a derived 
RegistrySharedObject. See code below.

The problem seems to be that we create a instance of 
RegistrySharedObject (P4RegistrySharedObject()) wich gets added to 
org.eclipse.ecf.provider.remoteservice.generic.RegistrySharedObject.localRegistryUnregistrationTargets 
but "no one" calls 
org.eclipse.ecf.provider.remoteservice.generic.RegistrySharedObject.sendUnregister(RemoteServiceRegistrationImpl) 
when the remote client disconnects.
So the Map grows over time and finally the server run's into an 
OutOfMemory Exception after some time.

Any suggestions where the Problem is or what is missing from the 
implementation?

thanks in advance!

Best Regards, Peter

BTW: we are running ECF 3.13.1.v20160405-1820

extended HostContainerSelector:

    @Override
    protected IRemoteServiceContainer createRSContainer(
            @SuppressWarnings("rawtypes") final ServiceReference 
serviceReference, final Map<String, Object> properties,
            final ContainerTypeDescription containerTypeDescription) 
throws SelectContainerException {
        final ISharedObjectContainer container = 
(ISharedObjectContainer) createContainer(serviceReference, properties,
                containerTypeDescription);
        final ID adapterID = 
IDFactory.getDefault().createStringID(IRemoteServiceContainerAdapter.class.getName());
        final ISharedObjectManager manager = 
container.getSharedObjectManager();
        ISharedObject so = manager.getSharedObject(adapterID);
        if (so == null) {
            so = new P4RegistrySharedObject();
            try {
                manager.addSharedObject(adapterID, so, null);
            } catch (final SharedObjectAddException e) {
                throw new P4ServerException(e);
            }
        }
        return new RemoteServiceContainer(container, 
(IRemoteServiceContainerAdapter) so);
    }


P4RegistrySharedObject extends RegistrySharedObject and just implements 
a custom getSerializableException method - since the original one is 
private, it's a copy of the  executeRequest method.