Hi Marmotta Users,
It looks like there are quite a few options to configure the cluster.
Can someone answer,
1. First let me clarify, the clustering options in Marmotta > Core > Settings >
clustering.{address,backend,enabled,mode} need to be configured when using
Zookeeper?
2. Which is the preferable backend? I’m not familiar with the pros/cons of the
options but I think looking around at some docs that Hazlecast is a ‘safe’ good
bet?
3. There are three options for mode. Based on the description I would say that
distributed is what I want but there is a third option ‘Replicated’ which is
not described. What exactly does this do?
4. What is the best way to set the address? I think this would depend on the
backend mostly and also the network the server is in but I’m not sure what the
rules are.
My datasets are too large to run on one instance I think and I would like to
become familiar with the clustering options Marmotta offers. If I wanted to
have N number of instances running, each has a portion of the total dataset is
this possible? Ideally there is some sort of master that I query and it will
collect the triples regardless of the server the data is on. I’ve seen the
walkthrough at the Marmotta site but wanted to see if that will get me where
I’d like to be. :)
====
I also found the Apache Giraph project which claims to offer native node/edge
processing for graph databases. Has anyone used this? I would be *very*
interested to play around if it could connect to Marmotta.
====
Lastly, What are people using to manage there ontologies? I found Protege a
while back and installed WebProtege to manage ontologies. Is it possible that
it connects to marmotta to keep the ontology synchronized? Are there any cool
things WebProtege (or any ontology manager) can do with Marmotta?
Thanks All!
-Joshua
Joshua Dunham
Scientific Computing | Vertex
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