You're referring to the file system caches managed by the operating system,
right? That neo4j has no control over and is up to the specific OS you run
it on.
2011/12/5 Ian Forsey <for...@gmail.com>
> Thanks Mattias,
>
> I'll try that out.
>
> Playing about, I've noticed that the file buffer cache seems to survive
> restarts. Is this correct? Is it guaranteed that the whole file buffer
> cache will survive?
>
> On 5 December 2011 14:09, Mattias Persson <matt...@neotechnology.com>
> wrote:
>
> > Warming up the graph is best done by warming up the graph, so to speak.
> > Every warmup use case is different, and for warming up the entire graph
> > you'll have to loop through all nodes and get their relationships and if
> > you'd like to have properties in there too then load them also. The most
> > basic being:
> >
> > for ( Node node : db.getAllNodes() ) {
> > IteratorUtil.count( node.getRelationships() );
> > }
> >
> > Or in 1.6.M01 you can do:
> >
> > for ( Node node : GlobalGraphOperations.at( db ).getAllNodes() );
> > for ( Relationship rel : GlobalGraphOperations.at( db
> > ).getAllRelationships() );
> >
> > pro here is that reading the store sequentially (0-max) is faster than
> > random access. But the list of relationships each node have isn't loaded
> > this way, only the relationships themselves. I don't know which one ends
> up
> > the best for you.
> >
> > 2011/12/5 Ian Forsey <for...@gmail.com>
> >
> > > Hi there,
> > >
> > > I'm looking to get my entire graph into memory.
> > >
> > > I've configured the file buffer cache, but nodes/rels don't get added
> > into
> > > the cache until I first query them. Is it just a case of traversing the
> > > entire graph to warm-up the cache on application startup? Or is there
> > > another way to tell neo4j to load the entire graph into memory on start
> > up?
> > >
> > > Thanks
> > >
> > > Ian
> > > _______________________________________________
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> > >
> >
> >
> >
> > --
> > Mattias Persson, [matt...@neotechnology.com]
> > Hacker, Neo Technology
> > www.neotechnology.com
> > _______________________________________________
> > Neo4j mailing list
> > User@lists.neo4j.org
> > https://lists.neo4j.org/mailman/listinfo/user
> >
> _______________________________________________
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--
Mattias Persson, [matt...@neotechnology.com]
Hacker, Neo Technology
www.neotechnology.com
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