If you perform some kind of write operation on a slave it will as a side
effect sync up with master. The pull interval is there to keep the sync
heartbeat going even if a slave doesn't sync up the before mentioned way in
a while.
Den torsdagen den 18:e augusti 2011 skrev Brendan
Hi
I just loved the concept of Graph Based Databases. I have some queries:
1. Is there any Architecture document on Neo4j? I specifically want to know,
suppose if I use Java API how the graph would persist in memory? I mean to say
I want to create the graph once and then search multiple times
Got answers to my previous questions. I was actually using Embedded Neo4j, just
had a look on Server Edition (java +REST)
Simply loving it :)
/PRE
BR
**BRThis
message may contain confidential or proprietary
Husain,
Good to hear! Don't hesitate to ask here if you have more questions or
comments - we all love to help and get feedback for the project!
/peter
Sent from my phone.
On Aug 18, 2011 12:42 PM, Husain, Yavar yhus...@firstam.com wrote:
Got answers to my previous questions. I was actually
Jim,
Can you tell me how to add my suggestions for a solution to this problem to
your issue tracker?
Niels
From: pd_aficion...@hotmail.com
To: user@lists.neo4j.org
Date: Tue, 16 Aug 2011 16:33:04 +0200
Subject: Re: [Neo4j] partitioning the relationship store
The partitioning is a
Hi Niels,
The devteam backlog isn't public because it contains private customer
activities (as well as features from the community).
Andreas and Peter are working on a way that we can collaborate more effectively
with (the relatively small number of) community code contributors.
Until then,
Hey Paddy,
Thanks for the inspiration, I had a scour through the source and website,
the speed in which you can traverse the graph is incredible!
Jim: I don't suppose you know if/when the REST API will support these
complex traversals (or END_OF_GRAPH queries)? This unfortunately makes Neo4j
a
Hi Peter,
using Gremlin or Cypher, you can do more complicated traversals even
with the Neo4j Server, see
http://docs.neo4j.org/chunked/snapshot/cypher-plugin.html and
http://docs.neo4j.org/chunked/snapshot/gremlin-plugin.html . While
Cypher support for variable length pathes is coming, in
Nuo,
I don't think you can refer to the return filter via a reference.
Could you post your graph and the curl command you are doing so I
could take a look at it? It should work ... take even a look at
Hey Peter,
Thanks for the quick reply. I actually started work on my migration using
Gremlin, my original query looks like this:
g.v(%d).outE{it.label=='JOURNEY'}.inV.loop(3){it.loops 5
it.object.getProperty('stop_id') != '%d'}.outE{it.label=='HOP'}.inV.paths
I would be querying on one of the
Peter,
there is no concept of END_OF_GRAPH in Neo4j or Gremlin. It is merely
the concept of not including a depth-related component into the stop
condition of a traversal. So, your query could maybe be something like
g.v(%d).out('JOURNEY').loop(1){it.object.getProperty('stop_id') !=
Hi Peter,
Jim: I don't suppose you know if/when the REST API will support these
complex traversals (or END_OF_GRAPH queries)? This unfortunately makes Neo4j
a no-go for our project until then.
The REST API does support some complex traversals, but it's not totally
equivalent to the either of
Hi Nuo,
I've been playing with this for a little while, and after talking it over with
the devteam, I'm pretty certain that want you want to do isn't yet possible
through the REST API. To solve your problem, you'd need a return filter like:
position.endNode().hasProperty('name')
Hi Nuo,
Please ignore my previous mail - Tobias pointed out that my syntax was wrong
(thanks Tobias!).
Try:
position.endNode().hasProperty('name')
!position.endNode().hasRelationship([org.neo4j.graphdb.DynamicRelationshipType.withName(
'bar' )])
And it should work fine (look out for
Hi Peter,
I am experiencing a weird phenomenon where I have some nodes in a spatial
layer that are not being returned by the find node in layer query. I have
checked everything I know of and they are just not being found. Other nodes
are fine. I can see the Rtree index and relationships and they
Hi,
Our team is building app using neo4j with aStar algorithm to make routing
from node to node using own data model from OpenStreetMap.
Anybody know how to make search using aStar with turn restrictions and how
to implement them?
We are using component graph-algo
I am thinking about some
Hi Peter,
I'm finally trying this query out, but not getting any results. Do I need to
rebuild neo4j-spatial? I sent the index command successfully:
-
http POST /db/data/index/node/ {name:UsersWorld,
config:{provider:spatial}}
- == 201 Created
- == {
- == template :
Hi:
I am somewhat new to neo4j. I wanted to track the number of nodes and
relations in my datastore over time, and to do so from my own program
(as opposed to from the webadmin gui that one reaches at
http://localhost:7474.)
Are there API calls that provide this information?
Thanks.
Gautam
Boris,
Could you please share the database or some creation script leading up to
this so I can have a look?
/peter
Sent from my phone.
On Aug 18, 2011 7:03 PM, Boris Kizelshteyn bo...@popcha.com wrote:
Hi Peter,
I'm finally trying this query out, but not getting any results. Do I need
to
Hi Raffi,
the spring configuration contains a shutdown hook on destruction of your spring
context.
You should call appCtx.close() at the end of your application, which will
automatically also shut down
the graph database.
Sorry for the eclipse STS annoyances. Can you determine any cause for
Hi Gautam,
a lot of monitoring info is exposed via the JMX and Monitoring API,
see http://docs.neo4j.org/chunked/snapshot/operations-monitoring.html
for details. I believe the number of nodes and releationships is part
of the community edition, so just try it out using the JMX API (there
is Java
Any pointers to why am getting this exception?
Appreciate your help.
Thanks.
On Mon, Aug 15, 2011 at 9:33 PM, John Howard johnyho...@gmail.com wrote:
I am using 1.4 M03.
Not sure if this is already reported/fixed.
java.util.ConcurrentModificationException
at
Hi:
I want to create Java applications that will connect to a neo4j
server. Some of these apps will be doing a lot of updates to the
graph, and others will do lots of read/query/traversals, and some will
do a mix of both. Highest performance that I can achieve are important
to me. From reading
sorry false alarm, a runaway job was removing nodes :)
On Thu, Aug 18, 2011 at 3:31 PM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Boris,
Could you please share the database or some creation script leading up to
this so I can have a look?
/peter
Sent from my phone.
On
It looks like the HA implementation is for eventual consistency, tunable by how
often a slave polls the master for updates from other nodes.
With a load balanced cluster, is the best practice to simply use sticky
sessions on clients to ensure that immediate reads of updated data are served
by
Why do you use 1.4 M03? there are 1.4 1.4.1. You should try it first.
On Fri, Aug 19, 2011 at 2:55 AM, John Howard johnyho...@gmail.com wrote:
Any pointers to why am getting this exception?
Appreciate your help.
Thanks.
On Mon, Aug 15, 2011 at 9:33 PM, John Howard johnyho...@gmail.com
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