Re: [Neo4j] Transactional entity manager over Neo4J + Document datastore (e.g. CouchDB)

[Michael Hunger]

The Neo4j team implemented XA/2-PC around the internal lucene index (which is also a kind of document-store), so it is definitely doable.

There has been a work in progress around for along time that allows to do that with just a little bit of code but it is not in the codebase yet.

Michael

Am 30.08.2012 um 09:24 schrieb Ran Biron:

[note - kind of cross posted to http://stackoverflow.com/questions/12189646/using-both-graph-db-and-document-db ]

I'm considering a setup where I have entities stored both in a document db (e.g. CouchDB) and a graph db (Neo4j). The rationale is storing each entity information (data, blobs, values, complex internal structure) in the document db while storing the entity relations (parents, children, associated entities) in the graph db.

Has anyone done / seen / been bitten by a setup like this? What kind of issues should I expect? First thing that come to mindaka the 2-phase commit. But backups are problematic too here.

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