Yup,
that is our assessment, too. On 1-3 joins there is a chance to
optimize the queries in an RDBMS. But still you have indexes instead
of references, and the overhead of serialization through the JDBC
driver. Anyway, it even shows that Java based DBs are not necessarily
slower than C based.
Then
Hu... I'm surprised.
I expected the test to be unfair in favor of mysql for a simple graph traversal.
In fact, i still think that with good mysql configuration and good sql
tuning, mysql can be faster.
Of course, if you add different kind of relationship, node property,
relationship property a
Hi guys,
Sorry if you have already seen this (Twitter, Gremlin mailing list, etc.), but
for those that haven't, this is of potential interest to all you Neo4j users.
http://markorodriguez.com/Blarko/Entries/2010/3/29_MySQL_vs._Neo4j_on_a_Large-Scale_Graph_Traversal.html
Take care,
Marko.
http:
There is no student interested by the Gephi-Neo4j proposal for the moment.
It's still time for them to apply. Spread the word :-)
Mathieu
On Fri, Mar 26, 2010 at 1:20 PM, Craig Taverner wrote:
> +1 from me too. I love visualization, use neoclipse a lot, and think large
> scale visualization lik
Hi,
I've had some time to look into this issue and it seems that when using the
"ReadOnly" versions of the classes, I get the memory mapping warnings and
when using the "Writable" versions of the classes, the warning does not
occur (I'm assuming memory mapping gets enabled).
I'm not against usin
Hi Francis,
have no direct clue on how to solve the algo without holding the nodes
in memory in order to track progress. Not a nice one. Any algo expert
around here to have a better solution?
Cheers,
/peter neubauer
COO and Sales, Neo Technology
GTalk: neubauer.peter
Skype peter.neub
Hi!
Amir:
One major drawback of Neoclipse is that you can't disconnect from a
database. Hope to fix it in a while.
Rick:
It should give up after a few attempts. However, this should be solved
when we add connect/disconnect functionality, as it won't connect at all
during the startup then.
/a
Hi!
If you only need one entry point to the graph, it's fine to use the
reference node for this purpose.
And BTW, you can of course create subreference nodes yourself, it's just
a node and a relationship, but the util used in the blog entry makes it
easier to do it in a nice way.
/anders
Am
Yes Amir,
Neo4j is not constraining you in any way in creating your
relationships, so you can have any number of relationships, even of
the same type, between the same nodes. You will have to check that, or
force some structure on the nodespace via a meta, see
http://components.neo4j.org/neo4j-meta
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