Great, thanks for the update.
Michael
Am 18.03.2014 um 03:27 schrieb Reihane Boghrati :
> Hi again,
>
> I am now able to start Neo4j server from command line (Windows). My client
> (on a different PC) connects to it using the following code snippet:
>
> restgraphDb = new RestAPIFacade("http:
Hi again,
I am now able to start Neo4j server from command line (Windows). My client
(on a different PC) connects to it using the following code snippet:
restgraphDb = new RestAPIFacade("http://serverip:7474/db/data";);
To make this function properly, I had to:
1) make sure the firewall was c
Nope - hadn't seen that. I had
read http://projects.spring.io/spring-data-neo4j/#quick-start page, the
release notes and the refrerence guide. It just didn't stand out. Thanks
for the pointer
I added the base-package to https://groups.google.com/d/optout.
Michael, just in case you haven't seen
this:
http://forum.spring.io/forum/spring-projects/data/nosql/746297-spring-data-neo4j-fails-on-upgrade-to-3-0-1
I'm actually getting the same issue. It's getting late, though, and I'm
heading out, but nothing obvious jumps out at me. I guess this issue
Hi,
I am coming from Oracle background and wanted to know if there any anything
equivalent to different schema of a oracle db in Neo4j.
We can have multiple db instances running on a machine and in each instance
we can have different schema/users, these schema can have multiple tables.
This is
Lorenzo,
unfortunately labels are not returned with the nodes from the remote API so
they have to be fetched separately.
Also in general I don't advise the use of SDN against a remote server, except
if you know exactly what you're doing (i.e. use repositories with cypher
statements and mapped
Hi John,
that's weird. What you see is a timeout.
cache_type=none
can be a problem, can you reset it to the default (which is imho "soft" e..g by
commenting it out)
Could you share your full messages.log ?
How many rel-types do you have?
and how many relationships on average per node?
Also
Thanks for replying
sorry for the mess, I'm a little new to all of this
The reason for the query is for search purposes and want to be able to
combine two queries as an 'or' and return them as one set of unique nodes,
or a collection of unique nodes while getting only
set number of results
Hi Costas,
this is quite an email and exercise.
In general the Java APIs outperform cypher as they don't include parsing
queries, transforming results etc and are already pre-compiled by the java
compiler to effective bytecode on the jvm.
Cypher runs more like an interpreter on top of it.
Curr
>
> @Lorenzo Speranzoni
>
Hi,
I am developping an application with Noe4j (www.bontirage.com).
I was surprised by the number of possibilities to use Neo4j.
- Embedded,
- REST API,
- Cypher,
- Sprind Data,
What to do?
i did research about the performance i my choice was Embedded Database with
> @Lorenzo Speranzoni
>
Hi,
I am developping an application with Noe4j (www.bontirage.com).
I was surpris eby the number of possibilities tiuse Neo4j.
-Embedded
- REST API,
- Cypher,
What to do?
i did research about the performance i my choice was Embedded Database with
API.
--
You receiv
Hello,
I have the following scenario:
90M nodes, all the same type, with 10 brief properties
220M rels, 8 brief properties
When running any query (for example, MATCH (a)-[:`CP`]->(b) RETURN a,b
LIMIT 25), timeout occurs. The web application (/browser) shows "unknown
error", and intermittentl
Hi everybody, I'm currently testing Spring Data Neo4j 3.0.1 with an already
existent Neo4j 2.0.1 graph database.
My log is displaying something like this:
2014-03-17 19:15:17,401 [DEBUG] [main]
org.springframework.data.neo4j.rest.SpringRestCypherQueryEngine - Executing
remote cypher query: mat
Currently creating a website for a small team of people in my company that
does not delete nodes but edits existing ones and adds new ones. I am
currently using id of the node to edit it.
Now I have heard this is a bad idea since the nodes are not unique over all
time (i.e. if I delete a nod
This should answer the question. :) For all interested, there is this blog
post:
http://blog.neo4j.org/2014/03/spring-data-neo4j-progress-update-sdn-3.html
On Monday, March 17, 2014 12:45:54 PM UTC-4, BtySgtMajor wrote:
>
> Actually, are there release notes besides the changelog.txt and the
>
Hi,
I finally found a workaround, by using :
@Query(value = "MATCH (n:Community) WHERE id(n)=({id}) RETURN count(n)")
public Long count(@Param("id") Long id);
and an external method that converts the result of the count(Long id) to a
boolean.
Grégoire
Le lundi 17 mars 2014 15:59:05 UT
Actually, are there release notes besides the changelog.txt and the
developer notes for the 3.0.1 release?
On Monday, March 17, 2014 12:42:57 PM UTC-4, BtySgtMajor wrote:
>
> Ah brilliant! I'm hoping to find some time in the very near future to
> play around with the new SDN and the new Java RE
Ah brilliant! I'm hoping to find some time in the very near future to play
around with the new SDN and the new Java REST binding.
Thanks again for all your (and your team's) hard work!
On Monday, March 17, 2014 11:49:56 AM UTC-4, Michael Hunger wrote:
>
> Hi Duncan,
>
> Yep it is compatible wit
Hi Jean-Baptiste,
I think that the Neo4j web interface is so powerful and yet simply to use.
But if you are looking for something even easier to use for your study, you
could give it a shot to SylvaDB [1], which is built on top of Neo4j. If you
need any help with this, don't hesitate to contact me
*Author's note:* Even though this post seems to be partially delving into
the technical characteristics of Cypher it has been created as an initiator
for discussion on relative scalability and performance of native vs. cypher
so I believed it should be placed in the group forum as opposed to s
Hi Duncan,
Yep it is compatible with 2.0 and also got some label support.
SDN 3.0.1 is also compatible with Neo4j 2.0.1 see the blog post:
http://blog.neo4j.org/2014/03/spring-data-neo4j-progress-update-sdn-3.html
And it took a while, too many SPI and API updates to take care of in SDN and
rel
Just wanted to see if it was Neo4j 2.0 compatible so I could start playing
with it, especially if I ended up needing it for any projects involving
Neo4j 2.0.
Also, Michael, just to save myself some time... :) Looking at Spring Data
Neo4j and the latest 3.0.1 release: Is that release compatible
The tag is just from the release.
it is as production ready as the previous versions, not so many changes there.
What do you want to use it for?
Michael
Am 17.03.2014 um 16:34 schrieb BtySgtMajor :
> Hi all,
>
> Does anyone know if the neo4j-rest-graphdb-2.0.1 tag of the Java REST
> bindin
Hi all,
Does anyone know if the neo4j-rest-graphdb-2.0.1 tag of the Java REST
binding is stable/production ready?
Any comments on said tag as well as when it might be expected that it's
merged/made into the master branch would be most welcome!
Thanks!
Cheers,
Duncan
--
You received th
Hi Michael,
Following your comment at https://jira.spring.io/browse/DATAGRAPH-438 : is
there a way to override the exists() method before the issue is solved?
That is, is there a way to make this request:
match (n:Community) where id(n)={id} return count(n) > 0
return a boolean when there is z
Thank you, I was just now able to reproduce this!
2014-03-17 11:28 GMT+01:00 Sotiris Beis :
> Hi Mattias,
>
> here is some more details:
>
> - The function to create the graph
> public void createGraphForMassiveLoad(String dbPath) {
> System.out.println("Creating Neo4j Graph Database for massive
No worries, and thanks for the feedback.
Btw. the reference card contains this note at the beginning:
Note: {value} denotes either literals, for ad hoc Cypher queries; or
parameters, which is the best practice for applications. Neo4j properties can
be strings, numbers, booleans or arrays thereo
That makes sense -- I'm only starting to look behind the hood of
Linkurious, so it's a bit of a learning curve for me!
Best,
JB
On Mon, Mar 17, 2014 at 12:34 PM, Michael Hunger <
michael.hun...@neopersistence.com> wrote:
> which is correct as when using Neo4j with code one should use paramet
which is correct as when using Neo4j with code one should use parameters which
are these things in curly braces.
which your neo4j statement correctly complains about -> "no parameter 'for' "
(for is probably also a misleading name for a value)
Am 17.03.2014 um 13:09 schrieb Jean-Baptiste Gallop
Hi,
Thanks for that! It worked.
Maybe someone will want to update the reference card? It says we should use
brackets with the SET command:
SET
SET n.property = {value},
n.property2 = {value2}
Update or create a property.
All the best,
Jean-Baptiste
On Mon, Mar 17, 2014 at 2:27 AM, Mi
Hey,
if you've seen the blog post:
http://blog.neo4j.org/2014/03/spring-data-neo4j-progress-update-sdn-3.html
It explains the issue:
Neo4j 2.0 introduced the requirement separately manage schema and data
transactions. We tried several approaches to handle this automatically, none of
which wor
Hi Mike,
I have the same issue when trying to use 3.0.1 with code that works with
3.0.0. So I guess it's a bug.
About the "No index name allowed on label based indexes" error, this is
because you still have the old index system around in your database. You
can see it using ":GET /db/data/label
Hello,
I am using Neo4j1.9.5 community edition on a test-drive basis to assess
its performance and gain experience.
I have a graph that is both written to and read from; size is about 10M
nodes, 100M relationships, about 14 Gb.
In the 1.8 version I was getting a lot of deadlocks, which end
Unfortunately not, usually you can just run your queries upfront.
Or load nodes with relationships with a query like this:
match (n)-[r]->()
where
// if you also want to load node or relationship properties
has (n.foo)
OR has (r.bar)
return count(*)
Michael
Am 17.03.2014 um 11:18 schrieb So
Hi all,
... just for the record ;)
Here's the way how I got it working:
1. remove logback.xml from your neo4j-server jar of your neo4j
stand-alone installation (it's located, e.g., at
/usr/share/neo4j/system/lib/)
2. place your logback.xml at $NEO4J_HOME/conf/
3. ensure tha
Hi Mattias,
here is some more details:
- The function to create the graph
public void createGraphForMassiveLoad(String dbPath) {
System.out.println("Creating Neo4j Graph Database for massive load . . .
.");
Map config = new HashMap();
config.put("cache_type", "none");
config.put("use_memory_mapp
Hi,
I executing some experiments with the neo4j graph database and i void to
eliminate the cold cache effects. Is there a way in terms of configuration
to do so?
My code is in java and i use neo4j-2.0.1
Thanks,
Sotiris
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On Saturday, March 15, 2014 4:15:12 PM UTC+1, Andreea Sandu wrote:
>
> Hi,
>
> I have been browsing through the code of Neo4j, but I haven't found a way
> to use its Cypher parser independently. What I would need is a way to parse
> Cypher queries into Java objects or JSON strings. I noticed th
On Saturday, March 15, 2014 4:15:12 PM UTC+1, Andreea Sandu wrote:
>
> Hi,
>
> I have been browsing through the code of Neo4j, but I haven't found a way
> to use its Cypher parser independently. What I would need is a way to parse
> Cypher queries into Java objects or JSON strings. I noticed th
I'm giving 3.0.1 a spin but it's throwing a MappingException on the first
@NodeEntity I try to create. It's failing in
AbstractMappingContext.getPersistentEntity
if (strict) {
throw new MappingException("Unknown persistent entity " + type);
}
It had been working fine in 3.0.0-RC1. I have chan
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