Samuel,
I would recommend HA for your usecase, since then the Neo4j cluster
will handling new neo4j instances appearing and copying data etc. Look
at http://docs.neo4j.org/chunked/snapshot/ha.html for setup docs.
There seems to be some interest in RMI remoting to neo4j. However, we
think this is
No please _remove_ neo4j-index-1.2-1.2.M06.jar this is an old library, from
neo4j 1.2.
you just need neo4j-lucene-index-1.6-SNAPSHOT.jar and lucene-corejar
Michael
Am 06.12.2011 um 08:42 schrieb ajinkyar:
I already have neo4j-lucene-index-1.6-SNAPSHOT.jar in my classpath. I want
to use
In that case I cannot use LuceneIndexService ... can you please suggest me a
way so that I can use LuceneIndexService ?
With neo4j-lucene-index-1.6-SNAPSHOT.jar and lucene-core-3.1.0.jar I am not
able to use LuceneIndexService ..
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You don't need LuceneIndexService, where did you find the documentation that
said to use the old index service? We would like to update that.
just
IndexNode myIndex = graphDb.index().forNodes(indexName);
index.add(node, key, value);
index.get(key,value);
index.query(query);
etc.
see:
Thanks for the suggestion .. I will give that a try.
I found the reference here
http://wiki.neo4j.org/content/Indexing_with_IndexService
On Tue, Dec 6, 2011 at 4:10 AM, Michael Hunger [via Neo4j Community
Discussions] ml-node+s438527n3563820...@n3.nabble.com wrote:
You don't need
Ajinkya,
thanks for pointing this out. Killed and forwarded the wiki page.
Cheers,
/peter neubauer
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Skype peter.neubauer
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LinkedIn http://www.linkedin.com/in/neubauer
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brew install neo4j
That reference cost us hell lotta time!! Do we get a free neo4j t-shirt for
pointing that out ;) !?
On Tue, Dec 6, 2011 at 5:04 AM, Peter Neubauer [via Neo4j Community
Discussions] ml-node+s438527n3563901...@n3.nabble.com wrote:
Ajinkya,
thanks for pointing this out. Killed and forwarded the
Yes.
Let me know your address, and I will send one. Green with a white
Rabbit on it. Seriously.
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
Hell yeah! Would love to flaunt that \m/
#504
935M, Marietta Street,
NW, Atlanta
GA - 30318
PS: if you are going to send tees please send 2 ...else there will be a
huge fight with my project mate :) (S, M)
On Tue, Dec 6, 2011 at 5:12 AM, Peter Neubauer [via Neo4j Community
Discussions]
Although this is a graph based db, why is the range of graph algorithms in
GraphAlgoFactory so narrow currently ? Is there a focus on this aspect in
future releases ?
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Hi folks,
is anyone interested in presenting Neo4j at the JUG in Atlanta i 21-22
March 2012? Would love to promote some awesome Graphistas personal
brands there!
Cheers,
/peter neubauer
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LinkedIn
Hi Guys,
IfThenElse is now supported with the Neo4jClient. Below are some examples, it
supports nested declarations and parameters.
https://gist.github.com/1437793
Cheers :)
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Is it possible to create subrelationships in neo4j ? For e.g. a relationship
called KNOWS_BETTER as a subrelationship of KNOWS.
Do I need to explicitly connect the nodes using both relationships for the
traversal to work ? Lets say, I create this
neo4j -- KNOWS_BETTER -- graphDB, does this
Hi all,
for those of you in Lund, Malmö, CPH or Helsingborg, come over to MINC
for some Heroku, Jruby and Cypher beering tonight!
http://www.meetup.com/Neo4j-Oresund/events/42155032/
Cheers,
/peter neubauer
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It cannot directly be done through the standard API, but of course it can be
implemented.
I do this myself in an application I am building. For every RelationshipType, i
create a Node and between those Nodes there can have subtyping relationships.
To make lookup fast, I use the node-id of the
Just sending my email
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Hi Ian,
I already followed this steps and I couldn't run Neo4j in HA Mode.
The following log has appeared when I type:
./neo4j-enterprise-1.5-1/bin/neo4j start
Starting Neo4j Server...WARNING: not changing user
process [6226]... waiting for server to be ready... BAD.
Neo4j Server may
Have you got the logs (probably mostly messages.log from the failing instance?
Cheers,
/peter neubauer
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brew install
Can you do this with properties on the relationship?
In your example a KNOWS relationship could have a how well property, with
values 1 to 100.
You could define KNOWS_BETTER as [ 50 how well 80 ].
KNOWS_BEST as [ 80 = how well = 100 ].
I'm not sure what the difference between a sub
I have a class with one String field to hold a query string and one for a
compiled query which is created in the constructor. So, each instance has
the query string (for documentation purposes) and the compiled query.
Does CypherParser return the same Query instance for parse()'s with
indentical
Thanks Peter,
I studied how the HA works in
http://docs.neo4j.org/chunked/snapshot/ha-how.html. It mentioned that If
the new master is elected and performs changes before the old master
recovers, there will two different versions of the data. The old master
will not be able to attach itself to
Guys...thanks a lot!!
I tried out our code with the new index. After 3 days of messing around with
jars, finally..It works!!
Thanks Ajinkya for keeping me in mind for the T-shirt!!
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craig.taverner wrote
...
- Create a way-point node for these
...
Hi together,
I wonder why to add extra nodes to the graph (if I understand Craig
correctly)? Wouldn't you then end up in expanding twice the node count
(way-point nodes and OSM nodes themself, because you have to query the
Hi,
You can do nested ifThenElses. One way to think about things is not as big ol'
one-liners.
g.V.ifThenElse{ ifStatement } {
thenStatement
} {
elseStatement
}
With new lines, the embeddness then starts to look like plain ol' C-style
On Tue, Dec 6, 2011 at 2:27 PM, jschweigl johann.schwe...@gmail.com wrote:
I have a class with one String field to hold a query string and one for a
compiled query which is created in the constructor. So, each instance has
the query string (for documentation purposes) and the compiled query.
There was only a method ending in 'WithCheck', or something like that,
lying unused in the code from last year. Nothing more than that. Except for
thinking about it, which is why I wrote the previous mail.
On Dec 2, 2011 12:50 PM, Peter Neubauer pe...@neubauer.se wrote:
Not sure,
Craig, do you
Hi all!
I'm using python embedded in order to classify all the nodes in a neo4j
graph previously labeled with properties.
The graph is about 3.9GB with 7M nodes and 30-40M relationships. I've two
questions:
1- the program worked correctly for hours then crashed suddenly with this
error:
Traceback
Follow the logs !!!
http://neo4j-community-discussions.438527.n3.nabble.com/file/n3565025/console.log
console.log
http://neo4j-community-discussions.438527.n3.nabble.com/file/n3565025/neo4j.0.0.log
neo4j.0.0.log
Welcome to the list :)
/jake
On Dec 6, 2011 1:54 PM, Lawrence lawrence.bande...@gmail.com wrote:
Just sending my email
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2011/12/6 Samuel Feng okos...@gmail.com
Thanks Peter,
I studied how the HA works in
http://docs.neo4j.org/chunked/snapshot/ha-how.html. It mentioned that If
the new master is elected and performs changes before the old master
recovers, there will two different versions of the data. The old
Answer from Mahesh (not getting through nabble):
Hi,
The issue is with any server that is a part of the cluster.
It is reproducible at will.
The method we were following was -
1) start all three co-ordinators
2) start all three servers
3) shut down one server
4) start the same server
Hi,
I wonder what is the easiest and fastest way to clear the database over the
REST API.
The purpose is to use it during testing and this needs to be as fast as
possible.
The data volume is not expected to be large, so maybe simple retrieval of all
relationships, nodes and then
I wrote a plugin for that.
See here:
You can just download the jar, put it in your plugins folder and add it to your
config.
https://github.com/jexp/neo4j-clean-remote-db-addon
https://github.com/jexp/neo4j-clean-remote-db-addon/downloads
Am 07.12.2011 um 00:11 schrieb Dmytrii Nagirniak:
Hi,
Thanks Michael.
That's definitely the best way to go.
But I wonder if there is a way to do it without plugins.
On 07/12/2011, at 10:22 AM, Michael Hunger wrote:
I wrote a plugin for that.
See here:
You can just download the jar, put it in your plugins folder and add it to
your
Without shutting down the server?
Only manually deleting the nodes, rels and indexes,
but then all your nodes have to be indexed (index-lookup) or connected
(travesal) - to simulate getAllNodes().
And then you can batch-delete them.
You would also want to get all indexes and delete them too.
I would like to know if there is a way to see the relations on neoeclipse
propertly, I created a family relation and tried to view the relation in
neoeclipse, but it seems the relations are been overlapped.
Image:
Hello Michael, I glanced through plugin's source code, and spank me if
i'm wrong, but is the plugging limited to removing only 1k nodes at a
time?
https://github.com/jexp/neo4j-clean-remote-db-addon/blob/master/src/main/java/org/neo4j/server/extension/test/delete/DeleteDatabaseResource.java#L58
On 07/12/2011, at 10:34 AM, Michael Hunger wrote:
Without shutting down the server?
Preferably. Shutting down/starting up may take couple of seconds.
With a suite of 1000 tests it adds up to a pretty long wait.
Only manually deleting the nodes, rels and indexes,
but then all your nodes
You would also want to get all indexes and delete them too.
Don't indexes retire when a related node/relationship is gone?
Yes they have read-repair, but some things will hang around and if you for
instance want to test
e.g. index creation or create an index with the same name but different
And if you follow the code, it does the hard-core action if the limit is
reached.
if ((Long)result.get(nodes)=MAX_NODES_TO_DELETE) {
result.putAll(cleanDbDirectory(database));
}
Michael
Am 07.12.2011 um 00:38 schrieb Krzysztof Raczyński:
Hello Michael, I glanced through
Hi,
I am trying to write a query that does a table projection, however, there is
two nested ifthenelse statements. I find that the As clause does not work
correctly when I mark the iterator and I cannot find a way to get a consistent
projection.
Ideally. Each THEN statement should contribute
I also tried this, with as statements in the else statements, I am noticing I
cannot get access to the nest ifthenelse as data in the table projection, will
try other ways of doing it in the meantime.
g.v('0').outE[[label:'HOSTS']].inV.filter{
it['Key'].equalsIgnoreCase('romikoagency')
Current workaround is 3 db calls, and then I merge the results and take the
most significant, but this is very slow.
var incompleteReferralsWithParticipants = graphClient
.RootNode
.OutAgency(Hosts.TypeKey, a = a.Key ==
userIdentifier.AgencyKey)
Hi,
I have this statement.
g.v('0').outE[[label:'HOSTS']].inV.filter{
it['Key'].equalsIgnoreCase('romikoagency')
}.inE[[label:'USER_BELONGS_TO']].outV.filter{
it['Username'].equalsIgnoreCase('romiko.derbynew')
I want to access from an external application Neo4j objects. Does anybody
know if a Neo4J ODBC driver is available to access the Neo4j objects.
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