Eoghan, Yes, you're totally right. What I'm looking for is to call an endpoint transparently on another container. Per example :
Endpoint_OSGI_1 -> CAMEL ROUTING -> Endpoint_OSGI_2 What I want is to call OSGI_2 without knowing where it is located (local or remote). From the container 1, the message would be saved in a persistent queue (still transparently) and send to the container 2 at the final endpoint. I don't know if I am clear. Grégory LE BONNIEC blog : http://java-soa.blogspot.com/ mail : [email protected] tel : 06.28.40.94.35 2010/1/8 Eoghan Glynn <[email protected]> > > In pure OSGi, it's maybe possible to use OSGi Remote Services > specification via CXF. > > Basicly, it provides distributed services (like RMI-IIOP in the JEE > world). > > Like this, you can use a bundle service remotely. > > It works fine from point A to point B but I never tried to define cluster > or load-balancer > > with this mechanism. > > Grégory, > > Jean-Baptiste is correct, CXF distributed OSGi may be used to transparently > invoke on remote OSGi services. We thought about writing a CXF > FailoverStrategy for dOSGi that would mediate with the OSGi discovery > mechanism to transparently locate alternate targets and retry failed > invocations if the original service disappears, but this has not been > implemented as yet. > > However I get the impression from your question that its the > *transparency*of the remote invocation that's of most interest to you, > as opposed to high > availability provided by replicated endpoints, right? If so, distributed > OSGi may be exactly what you need. > > Cheers, > Eoghan > > > 2010/1/8 Jean-Baptiste Onofré <[email protected]> > > > Greg, > > > > with NMR Clustering engine, you have right, it's totally transparent and > > valid whatever the endpoint's component is. You can use it for HTTP, > SMPP, > > etc endpoints. > > If you compare the SMX4/NMR cluster engine with the SMX3 one, it has been > > completely rewritten. > > It's not only load-balancing but really clustering with the rollback and > > redelivery when a JBI exchange fail, the pause of new exchanges > processing > > when the number of concurrently processed messages reach a given > threshold. > > > > Charles uses a karaf/smx instance. In this instance, he deploys camel, > > camel-jetty and camel-http. It's only load-balancing (not really > > clustering). > > > > In pure OSGi, it's maybe possible to use OSGi Remote Services > specification > > via CXF. Basicly, it provides distributed services (like RMI-IIOP in the > JEE > > world). > > Like this, you can use a bundle service remotely. > > It works fine from point A to point B but I never tried to define cluster > > or load-balancer with this mechanism. You can find some informations > here: > > http://cxf.apache.org/distributed-osgi.html > > > > Maybe Gert or Guillaume have more informations about this. > > > > > > Regards > > JB > > > > Grégory Le Bonniec wrote: > > > >> Jean-Baptiste, > >> > >> What I understand is : > >> > >> - I we want to call an endpoint transparently we have to use JBI > >> - I we want to non-JBI cluster, we can use HTTP (like in Charles' > example) > >> or JMS, but it's not transparent > >> > >> Am I right ? > >> > >> Regards > >> > >> Grégory LE BONNIEC > >> blog : http://java-soa.blogspot.com/ > >> mail : [email protected] > >> tel : 06.28.40.94.35 > >> > >> > >> 2010/1/8 Jean-Baptiste Onofré <[email protected]> > >> > >> Hi Greg > >>> > >>> It's not really component but endpoint. > >>> > >>> The cluster engine is a feature not active by default in the NMR. You > >>> need > >>> to add it manually. > >>> > >>> This cluster engine is in the NMR so only applicable for the JBI world. > >>> But > >>> if you have an OSGi bundle that uses a JBI endpoint via the > >>> EndpointExporter, it works. > >>> > >>> The explanation is here: > >>> http://servicemix.apache.org/SMX4NMR/13-clustering.html > >>> > >>> If you want clustering/load-balancing without JBI, you can use > SMX/Camel. > >>> Charles has already make some samples of load balancing: > >>> http://issues.apache.org/activemq/browse/CAMEL-2286 > >>> > >>> Regards > >>> JB > >>> > >>> > >>> Grégory Le Bonniec wrote: > >>> > >>> Hi, > >>>> > >>>> Concerning ServiceMix 4 Clustering, will it be possible to call a > >>>> component > >>>> A on a container A from a component B on a container B transparently > >>>> without > >>>> using JBI ? > >>>> > >>>> Regards > >>>> > >>>> Greg > >>>> > >>>> > >>>> -- > >>> Jean-Baptiste Onofré (Nanthrax) > >>> BuildProcess/AutoDeploy Project Leader > >>> http://buildprocess.sourceforge.net > >>> [email protected] > >>> PGP : 17D4F086 > >>> > >>> > >> > > -- > > Jean-Baptiste Onofré (Nanthrax) > > BuildProcess/AutoDeploy Project Leader > > http://buildprocess.sourceforge.net > > [email protected] > > PGP : 17D4F086 > > >
