Hi Michael,
good point regarding the HA. Right now we still have all the data in both
places - so we could theoretically re-create the graph data based on the MySQL
and the Facebook data (but it would be a pain). I agree that having a single
solution is much better. Less moving parts and less i
Um, if you can get me into the show I can guaruntee that we won't keep you.
;)
On May 9, 2011 8:04 PM, "Rick Bullotta"
wrote:
> I'm sure you'll keep me from leaving one way or another...
>
> -Original Message-
> From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org]
On B
All,
kinda cool to see
http://maps.google.com/maps/ms?ie=UTF8&hl=en&msa=0&msid=215787240736307886514.00049e70e573cbd8a91e5&ll=12.951029,77.629395&spn=3.12065,5.817261&z=8&iwloc=0004a2db82878a8d302begrowing.
Seems even some projects are being added - very cool stuff!
Cheers,
/peter neubauer
GTal
Just a general question about the implementation of the Lucene Index Framework
for Neo4J. If I have an active transaction on thread "A" that is doing a bunch
of writes/deletes to Neo and to certain indexes, and I have another transaction
on thread "B" that is doing searches, but might also remo
I'm sure you'll keep me from leaving one way or another...
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Peter Neubauer
Sent: Monday, May 09, 2011 11:03 PM
To: Neo4j user discussions
Subject: Re: [Neo4j] Neo4j Meetup - San Francis
Man,
c'mon, it's only Google, and we have beer!
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedIn http://www.linkedin.com/in/neubauer
Twitter http://twitter.com/peterneubauer
http://www.neo4j.org - Your high pe
You might have some competition that night. Google has Jane's Addiction
playing live. ;-)
I still plan on coming over for a bit before the show!
-Original Message-
From: user-boun...@lists.neo4j.org [mailto:user-boun...@lists.neo4j.org] On
Behalf Of Andreas Kollegger
Sent: Monday, May
Graphistas,
We'll be meeting tomorrow in San Francisco, at PariSoma[1] from 6pm until
whenever. This will be a casual after-work meetup, open for general discussion
but starting with some brain-storming about the current direction of Neo4j
development.
Join us to meet fellow graph developers,
hi john,
imho the gwt is just a webapp. so i'm a bit confused why talking about threads
in a j2ee env?
if i understand you right you want to share one neo4j instance between
different gwt apps(services). i would propose creating a context-listener, on
application startup the embedded-graph-d
Hi Kobla,
Thanks Andreas for pointing that out. (here is a link to the guide book:
http://bit.ly/sdg-book or http://bit.ly/sdg-html)
Spring Data Graph is also able to talk mapped objects via REST to a server, but
I don't recommend it.
The wrapped Neo4j-API is far too fine grained and chatty to
Hi John,
if i unterstand Jim right, he means that you should fire up threads on the
serverside implementation which handle client requests and deal with a
single instance of the embeddedgraphdatabase.
greetings
Chris
On Mon, May 9, 2011 at 11:06 PM, John Doran wrote:
> Hi Jim,
> Thanks for the
Hey,
You can have multiple threads talking to the same DB reference. You can not
create multiple graph database services over the same directory. Thus,
final graph = new GraphDatabaseService('/tmp/test')
for(int i=0;i<10;i++) {
new Thread {
public void run() {
// do something
Hi Jim,
Thanks for the reply, I haven't delved into the server aspect of neo4j(I'll
leave that until I finish up college). I'll have to refresh my threading
knowledge, you reckon each time users want to interact with the db to create
a thread and this would stop any exceptions relating to not being
I'm confident that given the history of neo4j, there will be no forcing of a
schema :-)
And I'm thinking of previous developments that added convenience and value,
like jo4neo, neo4j.rb, even the meta-model. Useful, but no-one was ever
forced or even pushed to use them. I hope the new automatic in
Mattias/Craig,
Of course I don't want to deny people the opportunity to have easy indexing
features, as long as it remains optional and doesn't lead to schema-creep into
the Neo4j kernel.
Having configurable event handlers that allow for automatic indexing, while
maintaining the possibility to
Marten,
those data sizes are no problem at all.
With regard to your original questions - even when you only put a part of our
data into neo4j, you have to do the ops stuff - i.e. backup and HA :) So you
might as well put all your data there and do the ops stuff just once. As I said
for the st
2011/5/9 Niels Hoogeveen
>
> Automatic indexes could be a very nice feature, though personally I would
> very much like to maintain the ability to manually index nodes and
> relationships. There are situations where I store a different value in a
> property than I store in the index (string prope
Very good points.
But I must admit that there is a demand for automatic indexing. I personally
am not using it, but I would like prepared indexes, indexes that can be
configured up front and then just add the node. I see your point about this
implying more schema (in the index preparation), but I
+1 would find this really valuable and useful as well -- indeed for a
browse/filter UI.
Aseem
On Mon, May 9, 2011 at 8:57 AM, Rick Bullotta
wrote:
> Related - since you would typically drive the selection/filtering process
> using both. Sorta like Solr facets.
>
> __
Yeah sorry for using 'key' and then 'value' later on (for my use case I need
to loop through all the keys
and retrieve all the values as well).
I thought I wouldn't need this feature but recently I imported a large
amount of data which was suppossed to
fulfill a set of basic common-sense constraint
Automatic indexes could be a very nice feature, though personally I would very
much like to maintain the ability to manually index nodes and relationships.
There are situations where I store a different value in a property than I store
in the index (string properties containing html tags, but i
Hi John,
I think threads are your friend. Or you could use our REST API (depending on
your requirements) where threads are our friends inside the Neo4j server.
Jim
___
Neo4j mailing list
User@lists.neo4j.org
https://lists.neo4j.org/mailman/listinfo/use
Hi Kobla,
Take a look at Spring Data Graph: http://www.springsource.org/spring-data/neo4j
Cheers,
Andreas
On May 9, 2011, at 8:48 AM, Kobla Gbenyo wrote:
> Hello,
>
> I want to know if there are any frameworks for mapping object to Neo4j
> server's data; like Hibernate for relational database
+10 for both if Neils responses. I think both external and in-graph indexes
should be supported.
The last time I talked to Mattias about this it sounded like the only really
clean option for integrating them behind one API would be once automatic
indexes are supported, because at that point indexe
Related - since you would typically drive the selection/filtering process using
both. Sorta like Solr facets.
From: user-boun...@lists.neo4j.org [user-boun...@lists.neo4j.org] On Behalf Of
Mattias Persson [matt...@neotechnology.com]
Sent: Monday, May 09,
Well, the title says "looping through all values of an index" whereas the
text in the mail says "looping through all keys of an index". That's why I
asked for the use case because they seem separate.
2011/5/9 Rick Bullotta
> FYI, that's one of the capabilities I proposed adding to the Index
> Fr
Hello,
I want to know if there are any frameworks for mapping object to Neo4j
server's data; like Hibernate for relational databases or Frames (in
TinkerPop) for embedded Neo4j.
Cheers,
--
Kobla.
___
Neo4j mailing list
User@lists.neo4j.org
https:/
FYI, that's one of the capabilities I proposed adding to the Index Framework
(no one has responded positive or negatively yet).
Common use case is to drive a user interface with a list of valid values to
facilitate filtering.
From: user-boun...@lists.neo
No there isn't a way to do that currently. What's your use case?
2011/5/9 Pablo Pareja
> Hi all,
>
> I don't know it this has already been asked at some point but I've been
> looking up for it in
> the mail-list archive and didn't find it.
>
> So the question is pretty simple, as the name of thi
Hi Neo4j and OrientDB users,
Heads up: The TinkerPop crew released Gremlin 1.0 [
http://gremlin.tinkerpop.com ] yesterday along with other products in the
TinkerPop suite [ http://bit.ly/jV6SzE ].
We are super excited. Gremlin has been in development for 1.5 years and in
thought/resear
I was very happy about http://neo4j.org/get?file=neo4j-manual-stable.pdf. I
hate reading on a computer screen and the possability to print it out was
really helpful. Anyway it gave me a nice overview on what is possible with
neo4j.
As said before I think I can give you better Feedback once I reall
Rene,
if you don't mind asking - what are the most valuable docs for you? We are
trying to migrate from the wiki.neo4j.org to the generated and tested code
snippets and edited documentation at docs.neo4j.org - it would be great to
see what users find valuable to keep improving on to get started wit
Hi Kobla,
Thanks for your answer but I'm using embedded version, not REST api.
Besides, I cannot find a sample of looping through all keys of an index in
the link
you provide for the REST api.
Cheers,
Pablo
On Mon, May 9, 2011 at 2:57 PM, Kobla Gbenyo wrote:
> Hi Pablo,
>
> See this link :
>
>
You rock it Rene!
Nice summary - please let us know how we can make your experience even more
smooth and what you you think should be there for you to have an even better
experience?
Cheers,
/peter neubauer
GTalk: neubauer.peter
Skype peter.neubauer
Phone +46 704 106975
LinkedI
Rick, I am looking forward to the results of your investigation. I see a need
for both external search mechanisms (Lucene, and possible Solr), as well as
in-graph search mechanisms based on constrained traversals (eg. Timeline index
based on a Btree and the Rtree index used in neo4j-spatial). A
When looking at the current neo4j-index component, I see two distinct pieces of
software,
those related to the old index service (packages: org.neo4j.index,
org.neo4j.index.impl, org.neo4j.index.lucene),
and those related to the Btree index (packaged org.neo4j.index.impl.btree,
org.neo4j.inde
Hi Pablo,
See this link :
http://components.neo4j.org/neo4j-server/snapshot/rest.html#Index_search_-_Exact_keyvalue_lookup
It will help you to retrieve all indexed nodes/relationships via REST API.
Cheers,
--
Kobla.
Le 09/05/2011 12:45, Pablo Pareja a écrit :
> Hi all,
>
> I don't know it th
Niels/Mattias: we are also exploring a Solr implementation for the index
framework. There are some potential benefits using Solr in a large
graph/HA/distributed scenario that we are investigating. The tough part is the
distributed transactioning, though.
- Reply message -
From: "Matt
Hi all,
Have been using my project in test mode(by myself) and have just came up
with a problem. My app through GWT is client server, so if a second client
wants to calculate a shortest path(using the embedded graphdb) they cannot
connect to my db because its in use by another client, any suggestio
Hi all,
I don't know it this has already been asked at some point but I've been
looking up for it in
the mail-list archive and didn't find it.
So the question is pretty simple, as the name of this thread says, is
it somehow possible
retrieving all keys belonging to an specific index?
Cheers,
Pa
Ok, I'm running iostat command and this is what I'm getting so far:
*(First results)*
avg-cpu: %user %nice %system %iowait %steal %idle
0.050.000.030.420.30 99.20
Device:tps Blk_read/s Blk_wrtn/s Blk_read Blk_wrtn
xvdap11.89
2011/4/12 Niels Hoogeveen
>
> Hi Mattias,
> Thank you for your response. I am currently working with the version you
> pointed out. My bigger concern is the possible deprecation of this component
> in future releases.
> As I pointed out, there are use cases where the Lucene timeline is not an
> a
There's no such statistics in the traversal framework, no. But your solution
with your own counter in the Evaluator would show you how many nodes was
encountered during the traversal (for the selected uniqueness setting).
2011/4/18 bhargav gunda
> Respected,
>
> here is the case which I want to
2011/2/23 Kiss Miklós
> Thanks for the response.
>
> Then my idea of a server plugin wasn't a bad idea, great.
> My next question is then: how do I traverse only a part of the possible
> sub-graph?
> I mean: let's suppose I start traversing from node 'A' and want to get
> all 2 length paths on re
So I'm assuming there's a high I/O load when this happens? It seems to be
loading up one or more persistence windows (a part of the database) into
memory. Could you verify that high I/O load with the "iostat" command (if
you're on linux) or any process/system monitor?
2011/5/6 Pablo Pareja
> The
As you know it is perfectly valid for an iterator to not implement the
remove() method, the fact of that being a poorly designed API is a separate
issue.
The main reasons for the remove() method not being implemented are:
1. It is very rarely used. Invoking the delete() method on the relationship
Hey everyone,
Peter asked me to post this to the list. So here you go:
Screencast explaining how to set up neo4j in eclipse and GWT:
http://www.rene-pickhardt.de/how-to-combine-neo4j-with-gwt-and-eclipse/
A short blog article with a sum up of my first testing on using neo4j on the
friendship gr
47 matches
Mail list logo
