Hey Adriano and everyone,
I finally got a chance to monitor/profile the neo4j process with VisualVM when
I run my set of tests.
It seems that after running the set of tests once, ~ 50M of PermGen was used.
However, subsequent test runs simply multiples that, which worries me a little.
After
James,
yes absolutely. IMHO the best forum to initially float new ideas is the
mailing lists since they are most open for discussion and seen by a bigger
community. After things get a bit more concrete, I would capture the
enhancement idea as clearly as possible on GIThub as an issue, so the
Hi Peter!
That's great news! I'm absolutely convinced that an open community that is so
well supported like Neo4j's will make the difference in many projects.
Greetings
Axel
Am 06.09.2011 um 16:32 schrieb Peter Neubauer:
Hi all,
Over the last year, the graph community has seen a fantastic
Hi,
This question may be Lucene related, but since I'm using it via Neo4J I'm
asking here first. I'm using Neo4J 1.4 M06.
I have a graph representing people, with a few properties about each person
(e.g., their name and job title).
Now I'd like to create a search form that will allow the user to
While I don't know that it will change anything, any reason that you're using
M06 and not 1.4.1? There have been quite a few important fixes. Also, the
analyzer that is used to tokenize both the indexed content and the query have
an effect on the query processing. In any case, I would update
Hi all,
since I am about to commit the RTree refactoring done by Davide Savazzi,
pulling it out into graph-collections, I moved the repo from my GIThub
account to https://github.com/neo4j/graph-collections.
Niels, Craig, Mattias and everyone else, please repoint your .git/config to
url =
Removing the log files ending with .vversion number at runtime is
perfectly safe to do but will turn off the ability to do incremental
backups. You can however still perform live full backups.
Configuring Neo4j with keep_logical_logs=false the logs will
automatically be deleted upon rotation.
Nice,
good find!
Cheers,
/peter neubauer
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http://www.neo4j.org - Your high performance graph database.
Thanks Johan!
Configuring Neo4j with keep_logical_logs=false the logs will
automatically be deleted upon rotation.
What does upon rotation mean here?
Aseem
On Wed, Sep 7, 2011 at 5:56 AM, Johan Svensson jo...@neotechnology.comwrote:
Removing the log files ending with .vversion number at
Hey Peter, sorry for not being totally clear. It should indeed be an *HTTP*
error, e.g. 400 or whatever. The problem is that the *body* is HTML when it
should be JSON. That is, you should see a bunch of HTML tags in the body,
instead of a simple {error: ..., stacktrace: ...} object.
Cheers,
Aseem
According to this: http://neo4j.org/forums/#nabble-td3248377, I upgraded to
1.4.1 and the problem goes away.
I guess there must be a bug in the 1.4.0 REST API that leaks classloader memory
or so, and GC didn't happen as expected in PermGen. Anyways, it looks great
after upgrading to 1.4.1.
Aseem,
do you care to raise an issue at
https://github.com/neo4j/community/issues?sort=createddirection=descstate=openfor
this? I understand - this sounds valid.
Cheers,
/peter neubauer
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Hi Rick,
Thanks, I will try upgrading and see if it fixes the issue. I have a feeling
that I'm missing something here though..
--- Yaniv
On Wed, Sep 7, 2011 at 2:16 PM, Rick Bullotta
rick.bullo...@thingworx.comwrote:
While I don't know that it will change anything, any reason that you're
Sure, Peter. Sorry I haven't done this yet for other issues I've reported!
Aseem
On Wed, Sep 7, 2011 at 11:42 AM, Peter Neubauer
peter.neuba...@neotechnology.com wrote:
Aseem,
do you care to raise an issue at
https://github.com/neo4j/community/issues/13
Cheers,
Aseem
On Wed, Sep 7, 2011 at 11:57 AM, Aseem Kishore aseem.kish...@gmail.comwrote:
Sure, Peter. Sorry I haven't done this yet for other issues I've reported!
Aseem
On Wed, Sep 7, 2011 at 11:42 AM, Peter Neubauer
Hi Axel,
I've read the syntax, which is why I was surprised. There are wildcard
options in the syntax, e.g.: test* and test? and even te*st.
So I would expect that [director*] should return director and directory.
[director], if I understand the syntax correctly, should return just
director.
But
Thanks!
Cheers,
/peter neubauer
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http://www.neo4j.org - Your high performance graph database.
Hello,
Is there an effective way to run aggregate queries over neo4j database? I'm
currently running a stock install of the REST server, and want to answer
questions like:
For all nodes in a particular index, how many other nodes are they
connected to at depth X?
Currently I have a script that
Pushed and fixed. Nite.
Cheers,
/peter neubauer
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Xavier,
I would put the load on the server side by either scripting something
with Gremlin, http://docs.neo4j.org/chunked/snapshot/gremlin-plugin.html
or write a Server Plugin taking your parameters and do the heavy
lifting in Java,
http://docs.neo4j.org/chunked/snapshot/server-plugins.html
Would
Xavier Shay wrote:
For all nodes in a particular index, how many other nodes are they
connected to at depth X?
Marko will be able to improve upon this, but try something like this (this
is untested)...
m = [:]
depth = 10
index_name = vertices
index_key = name
index_nodes =
Hi,
As I mentioned a while ago I am looking at using IndexedRelationship's
within my application. The major thing that was missing for me to be able
to do this was IndexedRelationshipExpander being able to provide all the
relationships from the leaf end of indexed relationships through the the
Great work Bryce,
I do have a question though.
What is the rationale for the restriction mentioned under 1). Do you need
this for the general case (to make IndexedRelationshipExpander work correctly),
or do you need it for your own application to throw that exception? If the
latter is the
Hi Niels,
Sorry I didn't quite write the bit about (1) clearly enough. The problem is
that it presently throws an Exception where it shouldn't.
This stems from IndexedRelationship.DirectRelationship:
this.endRelationship = endNode.getSingleRelationship(
SortedTree.RelTypes.KEY_VALUE,
I added here : https://github.com/neo4j/community/issues/14
--
View this message in context:
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Sent from the Neo4j Community Discussions mailing list archive at
Two longs is certainly cheaper than a string. Two longs take 128 bit and are
stored in the main record of the PropertyContainer, while a String would
require a 64 bit pointer in the main record of the PropertyContainer, and an
additional read in the String store where the string representation
LinkedIn
Neil Ellis requested to add you as a connection on LinkedIn:
--
Craig,
I'd like to add you to my professional network on LinkedIn.
- Neil Ellis
Accept invitation from Neil Ellis
Apologies, a classic address book import mistake :-)
Sorry folk!
Neil Ellis
Sign up for the beta of Hashbo, because life is for sharing:
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On 8 Sep 2011, at 02:04, Neil Ellis via LinkedIn wrote:
LinkedIn
Will have to experiment with changing my id's to be stored as longs, it does
make perfect sense really that it would be better. Thanks for the hint.
In regards to SortedTree returning the KEY_VALUE relationship instead of the
end Node, I had thought of that too, and it would definitely help.
I think we don't have to worry about backwards compatibility much yet. There
has not been a formal release of the component, so if there are people using
the software, they will accept that they are bleeding edgers.
Indeed addNode should return the KEY_VALUE relationship and I think we should
Another thought if there is going to be a larger refactor of the code is
whether the indexing mechanism should be broken out as a strategy for the
IndexedRelationship. At present it is tied to SortedTree, but if an
interface was extracted out that had addNode, removeNode, iterator, and
I have made the changes in regards to SortedTree in regards to relationships
vs nodes, and have got all the tests passing. The changes are pushed up to
my github account (and pull request has been raised).
The changes can be seen here:
https://github.com/brycenz/graph-collections
On Thu, Sep 8,
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