t;
> [1] http://windycitydb.org/
> [2] http://graphbootcamp.eventbrite.com/
> [3] http://jivesoftware.com
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;
if ( i%1 == 0 )
{
tx.success();
tx.finish();
tx = db.beginTx();
}
}
?
2011/6/23 Massimo Lusetti
> On Wed, Jun 22, 2011 at 1:21 PM, Mattias Persson
> wrote:
>
> > Are you indexing this in a single transaction or what's the isolation for
> >
2-869-9740
>
> tmcne...@carisls.com <mailto:tmcne...@carisls.com>
>
>
>
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Milestone or not?
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at there is something local going on.
>
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o the graph, and 914 for
> > finding changesets in a different index.
> >
> > I have not investigated for which version of neo4j the slowdown started,
> or
> > if there is somehow some other cause. I will try find time to do that
> later
> > this week. But I thought I
tus " + status );
> }
> }
>
> There's a "This means that the transaction was never successful" part,
> and this where my code gets and hence afterRollback() is not called on
> my handler.
>
> Could there be any reason for this?
>
nsaction (since these won't be written to DB). But now it seems I
> cannot always get a notification about failures/rollbacks. Or is there
> any other way to do this?
>
> Thanks,
> ---
> balazs
>
> On 6/27/11 11:50 AM, Mattias Persson wrote:
> > Reading the javadoc:
&
org/neo4j/index/impl/lucene/LuceneDataSource.java
would be a good starting point. I don't think there are good
tutorial/documentation on how to do these things though.
>
> Thanks
> --
> Massimo
> http://meridio.blogspot.com
> ___________
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?
> >
> > Thanks
> > --
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> > http://meridio.blogspot.com
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gt; Node n = it.next();
> System.out.println("Found foo in fulltext: "+n+":
> "+n.getProperty("foo"));
> }
> assertEquals(2, hits.size());
>
> tx.success();
> } finally {
> tx.finish();
> }
>
> For the "
I just replaced 'value.toString()' with 'value', and now my test runs OK
> (and fulltext search for terms still work beside numeric range queries).
>
> Regards,
> ---
> balazs
>
> On 6/28/11 4:41 PM, Mattias Persson wrote:
>> Hi Balazs,
>>
>> I think th
(NodeImpl.java:399)
> > >>at
> org.neo4j.kernel.impl.core.IntArrayIterator.hasNext(IntArrayIterator.java:93)
> > >>at
> org.neo4j.kernel.impl.core.NodeImpl.getSingleRelationship(NodeImpl.java:218)
> > >>
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;ll make your
> > >> lives
> > >> as developers much more productive in a range of use-cases. If you're
> > >> comfortable with using SNAPSHOT versions of Neo4j, please try it out
> > >> and let us know what you think - we'd really value your feedback.
> > >>
> > >> If you're happier with using packaged milestones then this feature
> > >> will be available from 1.4 M05 in a couple of weeks from now.
> > >> ___
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> > >> https://lists.neo4j.org/mailman/listinfo/user
> > >>
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acing spaces with "_" and doing the same with
> search terms). If I could instead depend on "_e" fields, I could get rid
> of my own exact index tweaking and my index would be half as big.
>
> Do you think I can safely depend on these implicit exact indexed fields
> in
Turns out to be a bug indeed. A fix for this will go into 1.4.
Thank you,
Mattias
2011/6/29 Mattias Persson
> AFAIK there are no differences between the two. The read-only version makes
> sure you cannot perform modifications to the graph, but otherwise they use
> the same calls
eo4j.kernel.impl.core.NodeManager.getMoreRelationships(NodeManager.java:603)
> >> at
> org.neo4j.kernel.impl.core.NodeImpl.getMoreRelationships(NodeImpl.java:399)
> >> at
> org.neo4j.kernel.impl.core.IntArrayIterator.hasNext(IntArrayIterator.java:93)
> >> at
>
future. :-)
> ---
> balazs
>
> On 6/29/11 10:22 AM, Mattias Persson wrote:
> > Reading the source is always a good thing :)
> >
> > I don't see them changing in the near future, and even if it's a bit of a
> > hack to use them (since they are there mo
od in
> the native API for that (I'm using the EmbeddedGraphDatabase).
>
> Thanks a lot in advance,
> Mathias
>
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ay to know if the transaction used in a call to finish()
> is in a "success" or "failure" state?
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, facebook etc. so the format of
data may not be uniform. Therefore i found Neo4j to be an excellent option.
Has some work been done in modelling a user's Facebook data(friends and
networks) relationships in Neo4j?
How should I go about storing images in the DB?
Thanks
Kriti
--
Mattias Pe
; Today I added a List class to the graph-collections repo:
> > >
> https://github.com/peterneubauer/graph-collections/tree/master/src/main/java/org/neo4j/collections/list
> > > The List class implements the java.util.List interface.
> > > Niels
> &g
; > > > Cheers,
> > > >
> > > > /peter neubauer
> > > >
> > > > GTalk: neubauer.peter
> > > > Skype peter.neubauer
> > > > Phone +46 704 106975
> > > > LinkedIn http://www.linkedi
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;s Facebook data(friends and
> > networks) relationships in Neo4j?
> >
> > How should I go about storing images in the DB?
> >
> > Thanks
> > Kriti
> > _______
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t; > Online Services Team
> > ICT Services
> > University of Lincoln
> >
> > t: 01522 886542
> > e: abil...@lincoln.ac.uk
> >
> >
> >
> >
> > ___________
> > Neo4j mailing list
> > Use
t;
>
>
> > );
>
> > ...Add all my data using transactions
>
> > graphDb.shutdown();
>
> >** **
>
> > Then later opening a new session and accessing that database and indices
> ****
>
> > I've already made. Is that possible (I didn't see anything covering that
>
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going to work or what is a preferred
> architecture?
>
> Regards,
>
> Brendan
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Maybe there's some issue with the shell only.
>
> Jim
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Just noticed that "ls" shell reads all relationships before displaying
them... I'll fix this tomorrow.
2011/7/6 Mattias Persson
>
>
> 2011/7/6 Jim Webber
>
>> Hi Rick,
>>
>> > Are you thinking maybe of lazily loading relationships in 1.5? T
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neoclipse or neo4j-shell are terribly slow when working with
> > these
> > >>>> nodes. In the shell I would expect a `cd` to be very fast,
> > >>>> much like selecting via a rowid in a standard DB. Instead, I usually
> > see
> > >>>> several seconds d
ent"
> algorithms in both cases? Can you refresh my memory?)
>
> Thank you for your help.
> Best regards,
> --
> Lmhelp
>
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> > >
n
> Many thanks!
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indexOf('test')!=-1"
> >> }, "max depth" : 1 }
> >>
> >> I think neo4j ignores the filter and returns all relationships.
> >>
> >>
> >> --
> >> View this message in context:
> http://neo4j-user-li
> -Original Message-
> From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org]
> On Behalf Of Mattias Persson
> Sent: Wednesday, July 13, 2011 9:05 AM
> To: Neo4j user discussions
> Cc: h...@neo4j.org
> Subject: Re: [Neo4j] how setup lucene fulltext
ing list
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x27;node_auto_index' and 'relationship_auto_index' are used by the auto
> indexing subsystem.
>
> On Wed, Jul 13, 2011 at 8:35 AM, Mattias Persson
> wrote:
>
> > Yes, the neo4j integration doesn't impose any additional restrictions
> other
> > than those (if any) of L
oded JSON, because for simple strings, quotes don't go into the
> URL.
> > So is this even possible?
> >
> > Help appreciated! Thanks much.
> >
> > Aseem
> > ___
> > Neo4j mailing list
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> > https:
ch value
> separately sounds killer. Any pointers on how to do this via the REST API?
> Still not clear to me what format URL I should be using.
>
> Thanks!
>
> Aseem
>
> On Wed, Jul 13, 2011 at 5:50 PM, Mattias Persson
> wrote:
>
> > 2011/7/13 Michael Hunger
> >
http://help.neo4j.org/discussions/questions/7-re-neo4j-how-to-indexlookup-from-an-array-property
2011/7/14 Mattias Persson
> I think that indexing values other than strings are impossible through the
> REST API and that's a known shortcoming I hope will be fixed pretty soon.
&
be the best
> solution,otherwise, we need wrapper Lucene api asFilteredQuery or so. I just
> take a glance at Neo4j and Lucene api,no more help just now.
>
>
> Regards,
>
> Edgar
> At 2011-07-13 21:28:35，"Mattias Persson"
> wrote:
>
> >Quite possibly! Yun
Started a support discussion about this:
http://help.neo4j.org/discussions/questions/8-re-neo4j-unique-constaint-on-index
2011/7/14 Mattias Persson
> Creating a support discussion for this.
>
>
> 2011/7/7 Michael Hunger
>
>> I'd second that for 1.5
>>
>&
tp3176918p3176918.html
> Sent from the Neo4J Community Discussions mailing list archive at
> Nabble.com.
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>
> Aseem
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eo4j.index.impl.lucene.IdToEntityIterator.getSingle(IdToEntityIterator.java:32)
>>> ~[working_graphGen.jar:na]
>>>
>>> I looked up and found that this is a bug and has been fixed. I was
>>> wondering if the fix has been incorporated in the latest
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;
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_
o an empty boolean array or something.
>
> You mean storing an empty boolean[] on the entity? It could possibly work
in a REST environment, but not embedded where if you added an empty int[]
you'd get back a boolean[] all of a sudden.
> /jake
>
>
> > ______
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> >>>> To: user@lists.neo4j.org
> > >>>> Subject: [Neo4j] Hyperedges and Objects
> > >>>>
> > >>>> Hi,
> > >>>>
> > >>>> is there a possibility to store hyper edges in Neo4j? Is there a
> plan to
> > >>>> implement this?
> > >>>>
> > >>>> Will Neo4j get the ability to store complex types in addition to
> > >>>> primitve data types for properties of nodes and relationships?
> > >>>>
> > >>>> --
> > >>>> Best regards
> > >>>>
> > >>>> Norbert Tausch
> > >>>>
> > >>>> ___
> > >>>> Neo4j mailing list
> > >>>> User@lists.neo4j.org
> > >>>> https://lists.neo4j.org/mailman/listinfo/user
> > >>>
> > >>> ___
> > >>> Neo4j mailing list
> > >>> User@lists.neo4j.org
> > >>> https://lists.neo4j.org/mailman/listinfo/user
> > >> ___
> > >> Neo4j mailing list
> > >> User@lists.neo4j.org
> > >> https://lists.neo4j.org/mailman/listinfo/user
> > >
> > > ___
> > > Neo4j mailing list
> > > User@lists.neo4j.org
> > > https://lists.neo4j.org/mailman/listinfo/user
> >
> > ___
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t;finally
>{
>t.finish();
>}
>
> Can anyone figure out a reason for it?
> I already read questions with similar stack traces on the mailing list, but
> didn't found a solution to this.
>
> Best regards,
> Joel Filipe Antunes Cordeiro
n 1.4M04.
>
> Joel Filipe Antunes Cordeiro
> jkorde...@gmail.com
> j...@student.dei.uc.pt
>
>
> 2011/7/21 Mattias Persson
>
> > Was your data inserted with the BatchInserter on 1.4.M05 or 1.4.M04 or
> > similar?
> >
> > 2011/7/21 Joel Cordeiro
> >
&g
cal on my dataset is to keep it updated at runtime, that's why
> i need to add and remove nodes, and consequently their relationships.
> How can i solve that issue?
>
> Best regards,
> Joel Filipe Antunes Cordeiro
> jkorde...@gmail.com
> j...@student.dei.uc.pt
>
>
>
j.org
> > https://lists.neo4j.org/mailman/listinfo/user
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> ___
>>>>> at
>>>>> org.neo4j.index.impl.lucene.IdToEntityIterator.getSingle(IdToEntityIterator.java:88)
>>>>> ~[working_graphGen.jar:na]
>>>>> at
>>>>> org.neo4j.index.impl.lucene.IdToEntityIterator.getSingle(IdToEntityIter
ke the use case here obsolete]
>
> PS: clearly all the text I wrote here would benefit from being represented
> by a graph, just think about all those grouping with autohiding the ie.
> "[]"
> and all kinds of stuff... heh
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gt; Path from three to one: false 0 ms
> Path from two to one: false 0 ms
> class org.bdb.BerkEnv$1 shutting down complete 152 ms
>
> and on cold:
> Path from one to three: true 10 ms
> Path from one to two: true 10 ms
> Path from three to one: false 0 ms
> Path from two to one:
arted
> > > (one)-->(two) 755 ms
> > > search started
> > > (three)<--(one) 0 ms
> > > search started
> > > (two)<--(one) 0 ms
> > > search started
> > > (one)-->(three) 804 ms
> > > search started
> > > (o
_ONE,ReturnableEvaluator.ALL_BUT_START_NODE,
> rel2, dir2).iterator()
> while(q2.hasNext)
> println(q2.next)
> }
> }
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en I execute the function it returns
>A-->I1<--B many times which unnecessarily forces me to process duplicate
> entries.
> How to solve this problem?
>
> Regards,
>
>
>
> --
> Manav Goel
> ___
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in that path are not.
But
> I need only unique path with unique nodes so that path is not repeated
> again.
> Any ideas on how to achieve that?
>
> On Fri, Jul 29, 2011 at 1:25 PM, Mattias Persson
> wrote:
>
>> It returns unique paths considering both nodes and relation
t; Node
>
> Niels
>
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gIterator.html
>
> Jim
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ning a single Path, which contains a single
> > > path-element, the Node/Element itself.
> > >
> > > Composing traversals would entail the concatenation of the paths
> returned
> > > with the paths supplied, so when we ask for the parents of all our
&g
s it a
> bug?
>
> Many thanks!
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iption)
> > > > >
> > > > > My take on it is to make Element (which is a superinterface of
> Node)
> > > into a
> > > > > Traverser.
> > > > >
> > > > > Traverser is basically another name for Iterable.
> > > &g
gt;
> > > > > > > My take on it is to make Element (which is a superinterface of
> > > Node)
> > > > > into a
> > > > > > > Traverser.
> > > > > > >
> > > > > > > Traverser is basically another name for It
proper solution when nodes are densely connected.
> So there
> > > > is no general solution for this question yet.
> > > > > > Niels
> > > > > >
> > > > > >> From: j...@neotechnology.com
> > > > > >>
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011 um 18:59 schrieb Niels Hoogeveen:
> > > > > > >
> > > > > > > >
> > > > > > > > Good point.
> > > > > > > > It could for all practical purposes even be
> > > Iterable
> > > > > >
the
>> > > > incoming side.
>> > > >
>> > > > I will list the steps to take here for the outgoing side (the incoming
>> > side
>> > > > is almost identical).
>> > > >
>> > > > From the Nod
Oh, confused this thread with store layer changes for type/direction
of relationships. This fruit in this thread is pretty low hanging.
Den lördagen den 6:e augusti 2011 skrev Mattias
Persson:
> I would not consider this low hanging fruit btw
>
> Den onsdagen den 3:e augusti 2011 sk
gt;
> > Oh, confused this thread with store layer changes for type/direction
> > of relationships. This fruit in this thread is pretty low hanging.
> >
> > Den lördagen den 6:e augusti 2011 skrev Mattias
> > Persson:
> > > I would not consider this low hanging fru
n contained in this email message to or
> by anyone other than the intended recipient is strictly prohibited. Any
> views expressed in this message are those of the individual sender, except
> where the sender specifically states them to be the views of the Company.
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mean a path that is shorter than all paths in the graph except the one that
> was the first hit of A* algorithm. I hope I could express my meaning well
> (my English is not really good!)
> Thank you again.
>
>
>
> On Tue, Aug 9, 2011 at 12:06 AM, Mattias Persson
> wrote:
&g
l work on this code and any inform you and all the list in the case of
> success.
> I you've got some idea please let me know.
> Thank you
>
>
>
> On Tue, Aug 9, 2011 at 12:32 PM, Mattias Persson
> wrote:
>
> > Oh ok, now I understand what you mean. The impl
> Thank you all
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> > > _
to find a new algorithm.
> Thank you again.
>
>
> On Tue, Aug 9, 2011 at 1:36 PM, Mattias Persson
> wrote:
>
> > Cool, I just though it might be easy... but I can be mistaken of course.
> I
> > haven't really got the time to look more into it a.t.m. but
stion: what is the performance impact of the length of a property
> name?
> Niels
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; >> >long start = System.nanoTime();
> > >> > rootTx.finish();
> > >> >long end = System.nanoTime();
> > >> >System.out.println( "tx.finish() time=" + number( end -
> > start
&g
dTelecomCatNode, null );
>
> Problem I see with this approach is, I would end up indexing same field(or
> key) in two different indices (Product node and Product relationship). This
> might hit the performance.* Can there be a better approach
; From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org]
> On Behalf Of Mattias Persson
> Sent: Wednesday, August 10, 2011 3:31 PM
> To: Neo4j user discussions
> Subject: Re: [Neo4j] Graph database index | query across indices
>
> Compound query between two indices isn't p
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00M is too small and I increased to 2G and restart the machine and it is
running fine. How big is the min requirement for memory in this
configuration?
> also, the pull interval you set is 10sec. However, i found it update
across all other machine almost instantly. any comment?
> Regards
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- PageRank in 2 lines of code.
> http://www.linkedprocess.org - Computing at LinkedData scale.
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rt multiple concurrent users run in production with more than one
>> >> J2EE
>> >> > server even if it is for balancing http load. It is still unclear to
>> me
>> >> how
>> >> > to get data from a neo store if the front end is distributed among
>> >> servers.
>> >>
>> >> Right now we are fully focused on the Neo4j 1.0 release that will be
>> >> out in January. After that focus will shift to HA 1.0 and we aim to
>> >> get a first version out in Q1/Q2. Since we are an embedded database
>> >> the architecture when running multiple machines is a bit different
>> >> then from the typical J2EE setup. Instead of having your separate DB
>> >> cluster machines put the full stack on each machine (http layer+BL+DB
>> >> layer) and run a load balancer in front.
>> >>
>> >> Hope this answers some of your questions.
>> >>
>> >> Regards,
>> >> -Johan
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>> >
>> >
>> >
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